Ambercycle’s CEO on Why Traditional Recycling Won’t Work, and What His Technology Does Instead

Camay Abraham
Camay Abraham is a journalist, researcher, and a freelance reporter for dot.LA. She covers fashion, tech and culture and has previously written for Glossy, i-D, Dazed and Screen Shot, among other outlets. She has an MA in fashion psychology from London College of Fashion and has been interviewed by Vice and ABC Australia for her work in fashion and well-being. Pronouns: she/her.
Ambercycle’s CEO on Why Traditional Recycling Won’t Work, and What His Technology Does Instead

Few industries are as tangled with buzzwords as the fashion industry. Clothing brands, rightly concerned about their tremendous effects on the environment, are eager to call their collections “green” or “sustainable.” But making tangible changes in how clothing is produced and distributed has been a struggle.

On Tuesday, L.A.-based startup Ambercycle announced it raised a $21.6 million Series A round to try to tackle the problem. The funding comes from fashion heavyweights including H&M (which has used its technology in recent collections) and online fashion and shoe retailer Zalando, among others. It will go to ramping up production of the company’s fiber regenerative technology, which it created and piloted in a manufacturing plant downtown.


Ambercycle co-founders Shay Sethi and Moby Ahmed are scientists and former UC Davis college roommates. The two see themselves as different from traditional fashion or manufacturing founders – and other research-based innovators.

“Traditionally, people have always thought, ‘here's an interesting technology, how do we craft a story around it?’” Instead, Sethi says, Ambercycle “start[s] with the products that we would really like to see and then work backwards into the technology. We develop, do research and engineering that way instead of starting in the lab.”

Ambercycle CEO and co-founder Shay Sethi

Ambercycle CEO and co-founder Shay Sethi

Their technology is able to break down the components of clothing to its basic polyester materials, separating its natural fibers and dyes, and creating a new material in the process, which they call cycora.

“We imagined a technology that could take an old t-shirt and turn it back into the yarns required to make that green t-shirt again,” he adds. “Anything that's in your closet today – like yoga pants or dress shirts – that's traditionally made of polyester can be made with cycora.”

Sethi and Ahmed started their company in San Francisco in 2015, then moved it to Los Angeles’ garment district two years later, looking for a manufacturing hub close to a center of innovation.

“We felt like this is a really good nexus for innovation, fashion – as well as material sciences,” Sethi says. “There is a very strong industry and a very strong familiarity with manufacturing so we felt it was a perfect blend. Also we grew up in California and didn't want to leave.”

We chatted with Ambercycle co-founder Shay Sethi about his company’s journey, its new funding and how it plans to get beyond buzzwords in planning a sustainable future for fashion.

What are the biggest challenges to the fashion industry?

When we consider the future of humanity, there's a couple key things that need to change. The big one is – given that consumption will not decrease – the reliance on natural resources will put a strain on the way in which we can live on this planet. So in order to change that, we need to take advantage of these traditionally viewed as waste streams and turn them back into new resources. So the future upstream will be all of these textile materials that are in our closet. But it's not really easy today to throw away or recycle our old garments.

We need to be able to have a low-friction way to throw away our garments and have them go back into a circular system. If we can tell a transparent and traceable story to a person, then brands and retailers will start to care.

Why is it so hard to recycle clothing currently?

So let's talk about our clothing. They are mixtures of different fibers – polyester and cotton, as well as dyes, additives, zippers, tags and stains – when they're at their end of life. We can't really recycle those materials, because they're these complex, intimate blends. Recycling has really struggled as a business, and also as a solution to waste, because you can't create a high quality product from those materials once they are at their end of life.

How is Ambercycle different from other recycling processes?

Most recycling processes are shredding or very simple mechanical processes. You can turn a t-shirt into pillow stuffing in a similar way that you can turn paper into a sort of grey newspaper and then downcycle it; The same thing happens with textiles.

The Holy Grail is really being able to turn an old t-shirt into a new t-shirt. So over the past five years, we’ve developed technology that takes these mixtures of materials that have dyes and additives, put them through a process, and make the base raw materials needed to make those same yarns. This goes in line with what's traditionally known today as circular economy where you can reuse materials, again and again.

Will Ambercycle always be focused on apparel?

Right now our focus is on apparel.

We have a couple of luxury clients that are really interested in transitioning to circular systems. Over the next couple of years, we're going to be able to talk about those, but the major message we want to help shed light on is that every year, over 120 billion garments go to landfill. We need to, as a fashion industry, transition to a circular system. It's [not] just one or two companies that can do things; Everyone as a whole needs to adopt a new ecosystem, where things are being reused in supply chains over and over again. It's very important for this transition to involve all verticals in the power supply chain. The demand for these materials is already so high. So people already care. I think we're just trying to figure out the logistics of the society right now.

There's a lot of possibilities when you think about it. You can imagine this being transformed into a system that can take other materials as well. I think we're excited about the possibilities in the future but I’m really focused on the textile-to-textile stories today.

What do you plan to do with your recent funding?

We’re trying to scale up the number of projects we're doing with different companies across the apparel industry that will require a lot of manpower or womanpower. That's a key gap we need to fill. A technology like ours that uses sort of molecular separation technologies, that advanced material science requires a sort of scale before you can really start to see the fulfillment of these contracts.

It's very easy to make a couple of t-shirts, but it's very hard to make millions and millions and millions of kilograms of stuff. We're going to be scaling up production of one of our main materials today, cycora. Demands are already way through the roof. I felt like right now was the right time to raise external capital to accelerate that plan.

This interview was edited for clarity and brevity.

Salt AI’s $3M Bet, Snapchat’s Creator Cash, Rivian’s EV Tech, and ŌURA’s $200M Win

🔦 Spotlight

Happy Friday, LA - let’s dive right in to this week’s highlights:

Salt AI, a forward-thinking AI startup based in Los Angeles, has secured a $3 million seed funding round led by Morpheus Ventures with participation from Struck Capital, among others, to tackle the complexity of managing workflows.Salt AI's blog details how its platform centralizes tools like CRM systems, project management software, and data trackers into one interface, eliminating inefficiencies and freeing up teams to focus on meaningful work. With new funding in hand, Salt plans to scale its platform and expand its reach, a move that underscores how AI can solve everyday business challenges.

Image Source: Salt AI - Aber Whitcomb

While Salt AI focuses on the workplace, Snapchat is doubling down on creators, with its latest updates introducing revenue-sharing opportunities and direct monetization features. The company’snewsroom update outlines how enhanced analytics will help creators better understand their audiences and sustain their work. The platform's latest updates introduce revenue-sharing opportunities and direct monetization features, along with analytics that give creators deeper insights into their audience. By making it easier for creators to grow and sustain their work, Snapchat positions itself as a key player in the creator economy, offering features that rival platforms like YouTube and TikTok.

Image Source: Snap

On the roads, Rivian is redefining what it means to drive an electric vehicle. The company’s latest software update includes advanced route planning, energy management tools, and customization options that make every trip more intuitive and efficient. Additionally, Rivian has introduced new entertainment features, including Google Cast, YouTube, and SiriusXM, as featured in Rivian’ssoftware spotlight, enhancing the in-cabin experience for drivers and passengers alike. This isn’t just about convenience; Rivian is showing how thoughtful software design can elevate the entire EV experience, blending practicality with sophistication.

Image Source: Rivian

ŌURA is making headlines with a fresh $200 million Series D funding round, with participation from Fidelity Management & Research Company and Dexcom, which now values the company at $2.55 billion. This investment, as reported byBusiness Wire, highlights the growing demand for wearable health technology and positions ŌURA as a leader in the space. With its sleek design and emphasis on actionable health insights, the funding will enable ŌURA to expand its reach and further integrate wearables into daily health management, strengthening its position in the competitive health tech market. With this funding, ŌURA aims to reach more users and expand its capabilities, further embedding wearables into daily health management.

Image Source: ŌURA

Stay tuned as Salt AI, Snapchat, Rivian, and ŌURA continue to evolve, offering us new ways to work, connect, and live better.

🤝 Venture Deals

    LA Venture Funds
      • Undeterred Capital participated in a $7M Seed funding round for Portal, a Watertown, Mass.-based biotech company specializing in advanced intracellular delivery technology to drive innovations in biological research and cellular therapeutics. - learn more
      • Vamos Ventures participated in a $7.9M Series A funding round for Culina Health, a Hoboken, NJ-based company that provides personalized, science-based virtual nutrition care by connecting patients with registered dietitians, with plans to use the funds to expand its offerings for dietitians and patients, implement AI-driven tools to enhance care efficiency, and strengthen its leadership team through key hires. - learn more
      • Humans Ventures participated in a $3.8M Seed funding round for Hamming.ai, a San Francisco-based company specializing in automated tools for testing and optimizing voice agents, with plans to expand its platform, enhance reliability and perform, and accelerate product development. - learn more
      • Fifth Wall led, with participation from Starshot Capital and others, in a $9.5M Series A funding round for Mojave, a Sunnyvale, CA-based company developing energy-efficient commercial air conditioning technology. The funds will be used to accelerate the adoption of its innovative systems and reduce energy consumption in the cooling industry. - learn more
      • ReMY Investors participated in a $17M Series B funding round for Scripta Insights, a company that leverages data analytics to help employers and healthy plans reduce prescription drug costs, with the funds aimed at expanding its platform and scaling operations. - learn more
      • Mantis VC participated in a $16.5M funding round for Nuon, a company specializing in Bring Your Own Cloud (BYOC) solutions that streamline AI, data, and infrastructure software deployment. The funds will support product development, readiness for general availability in 2025, and efforts to expand customer acquisition. - learn more
      • B Capital participated in a $102M Series C funding round for Precision, a company developing minimally invasive brain-computer interfaces to treat neurological disorders, with plans to use the funds to expand its team, advance clinical research, and refine its AI-powered brain implant for helping users with severe paralysis operate digital devices using their thoughts. - learn more
      • The Games Fund led a $3M Seed funding round for Dark Passenger, a Poland-based game studio founded by veterans of The Witcher 3 and Cyberpunk 2077, to create an unannounced, innovative, first-person multiplayer PvPvE stealth-action game set in a distinctive universe inspired by feudal Japan and martial arts cinema. - learn more

          LA Exits

          • Calliope Networks, a generative AI company providing licensed media content like movies, TV shows, and news, has been acquired by Protege to strengthen its platform’s capabilities in advancing AI development. - learn more

              Download the dot.LA App

              Momentum in Motion: IPOs, Partnerships, and Innovation

              🔦 Spotlight

              Happy Friday, Los Angeles!

              Last week, we dove into some of the major moves shaping LA’s tech scene, from ServiceTitan’s IPO ambitions to Anduril’s AI advancements. This week, the story continues with new milestones and updates that reveal how quickly the landscape is evolving. Here’s what’s happening now:

              ServiceTitan’s IPO: A Fintech Spark

              ServiceTitan’s initial public offering has proven to be a resounding success.The Glendale-based company priced its IPO at $71 per share, significantly above the anticipated range of $52 to $57. On its first trading day, shares opened at $101 and closed at $101.20, marking a 43% increase and valuing the company at nearly $9 billion. This impressive debut underscores ServiceTitan’s growing influence in the trades software space and signals a potential trend for other fintech leaders to watch closely. Read more about ServiceTitan's IPO success here.

              Anduril Industries: Expanding the Horizon

              We recently covered Anduril’s groundbreaking partnership with OpenAI, emphasizing the growing role of AI in defense. This week, Anduril continues to make headlines with new developments and collaborations that underscore its commitment to reshaping national security and autonomous technology:

              • Partnership with Palantir:Anduril and Palantir are teaming up to accelerate AI capabilities in defense. Together, they aim to integrate Palantir’s advanced data analytics with Anduril’s autonomous systems, creating a platform capable of delivering actionable intelligence in real time. This partnership is expected to enhance battlefield decision-making, reduce operational risks, and maintain U.S. leadership in defense technologies. Read more about the partnership here.
              • Dive XL Autonomous Submarine: Anduril’s Dive XL submarine is setting new standards for maritime autonomy. This long-endurance unmanned vehicle can operate in harsh underwater environments for extended periods, providing capabilities for intelligence gathering, surveillance, and reconnaissance. With its modular design, Dive XL supports a range of payloads, making it a versatile asset for maritime security. Learn more about Dive XL here.
              • Archer VTOL Aircraft Partnership: Anduril’s collaboration with Archer Aviation is pushing the boundaries of autonomous flight technology. This partnership leverages Archer’s expertise in vertical takeoff and landing (VTOL) aircraft to complement Anduril’s advanced defense systems. By integrating Anduril’s cutting-edge AI capabilities with Archer’s innovative designs, the companies aim to create next-generation solutions for tactical military operations. This partnership reflects a shared commitment to innovation and positions both companies as leaders in reshaping the future of aerial defense. Details about the partnership are available here.

              Writers Guild Challenges AI in Hollywood

              The Writers Guild of America (WGA) continues its efforts to address the growing influence of AI in entertainment. In recent negotiations, the Guild has pushed for clear boundaries on the use of generative AI in scriptwriting, emphasizing the need to protect writers’ rights and creative integrity. As the industry grapples with the implications of this technology, the WGA’s stance highlights an ongoing effort to balance innovation with fairness in Hollywood. Read more about the Guild’s actions here.

              Our thoughts are with the residents of Malibu as they face wildfires fueled by Santa Ana winds, which have displaced many and disrupted communities, including Pepperdine University. For resources during emergencies, explore ourguide to the top tech apps for natural disasters, highlighting tools to support preparation and safety.

              From tech breakthroughs to creative industry challenges, the region’s innovation engine shows no signs of slowing. As 2024 approaches, one thing is clear: the momentum isn’t slowing down.


              ✨ Featured Event ✨

              2024 PledgeLA Catalyst Awards

              Image Source: Instagram: PledgeLA

              Catalyst Awards to Honor Inspiring Entrepreneurs and Emerging Managers in Venture Capital, Catalysts Improving Access to Capital Across Los Angeles

              PRINCIPALS AND HOSTS: The Annenberg Foundation and PledgeLA, the initiative launched in 2018 by the Annenberg Foundation and the City of Los Angeles to promote equity and increase access to capital for L.A.-based startups and investors from underrepresented backgrounds.

              WHEN: Wednesday, December 18, 2024 at 5:30 p.m. PST.

              WHERE: Register to See Address Los Angeles, California

              RSVP HERE

              🤝 Venture Deals

                LA Venture Funds
                  • Alpha Edison led a $27M Series A funding round, joined by Acre Venture Partners, ReMY, among others, for One Bio, a UC Davis spinoff based in California that is developing biotech solutions to bridge the dietary fiber gap, with plans to scale production and expand its product offerings. - learn more
                  • Gideon Strategic Partners participated in a $110M Series C funding round for Capstan Medical, a Santa Cruz-based company developing robotics technology for heart disease treatment, with the funds aimed at advancing clinical trials and preparing for commercialization. - learn more
                  • Riot Ventures led a $10.1M Seed funding round for Deterrence, a company developing automated solutions for energetics production, including explosives and propellants, with participation from Impatient Ventures and others, to scale its technology, improve manufacturing efficiency, and meet growing industry demands. - learn more
                  • Chapter One Ventures participated in a $12M Series A funding round for Hyperbolic, a San Francisco-based AI company specializing in predictive analytics for supply chain optimization, with plans to use the funds to enhance its technology platform and expand its team. - learn more
                  • Blue Bear Capital participated in a $35M Series C financing round for Raptor Maps, a Boston-based company that provides software solutions for solar asset management. The funds will be used to enhance their AI-driven platform, expand global operations, and support the growing needs of the renewable energy industry. - learn more
                  • Behind Genius Ventures and Night Ventures, among others, participated in a $3M Pre-Seed funding round for Moldco, a Boston-based company providing digital, evidence-based care, treatments, and lab testing to help individuals reclaim their health from mold toxicity, with plans to use the funds to expand operations nationwide in 2025. - learn more,
                  • Regeneration.VC co-led a €8M Series A funding round for Orbisk, a Netherlands-based company that develops AI-powered food waste monitoring systems for the hospitality industry, with plans to use the funds to expand internationally and enhance their technology platform - learn more
                  • Mucker Capital participated in a $17M Series A funding round for Ask Sage, an Arlington, VA-based company offering a generative AI platform for government and commercial sectors, with plans to use the funds to expand its AI capabilities, drive growth, and increase its workforce. - learn more
                  • Magnify Ventures participated in a $8M Series A funding round for MiSalud Health, digital health platform offering affordable, same-day bilingual telehealth consultations in Spanish and English to better serve Hispanic communities in the U.S. and Mexico. With a focus on improving access for Spanish-speaking individuals, the company aims to address the growing demand for culturally and linguistically appropriate healthcare solutions as the Hispanic population continues to expand rapidly in the U.S.. - learn more

                    LA Exits

                    • Elios Vision, a company specializing in innovative glaucoma treatment technologies, has been acquired by Bausch + Lomb to strengthen its portfolio in addressing the needs of glaucoma patients. The acquisition brings Elios Vision's cutting-edge solutions into Bausch + Lomb's comprehensive eye health offerings, expanding its capabilities to provide advanced care for this critical condition. - learn more
                    • OceanX, a provider of subscription-focused fulfillment and logistics solutions, has been acquired by Cart.com to enhance its end-to-end e-commerce platform and expand its capabilities in subscription management and order fulfillment. - learn more

                      Download the dot.LA App

                      Mars, Money, and Makeovers : LA’s Big Week

                      🔦 Spotlight

                      Happy Friday, LA!

                      This week has been full of energy in LA’s tech world, with some big moves that are hard to ignore. From a local company going public to bold partnerships and exciting projects, here’s a look at the stories driving conversations and shaping what’s happening right now.

                      ServiceTitan's IPO Ambitions

                      Image Source: ServiceTitan - Cofounders Ara Mahdessian & Vahe Kuzoyan

                      ServiceTitan, a Glendale-based software leader for tradespeople like plumbers, electricians, and HVAC technicians, is gearing up for a major step forward: its initial public offering. The company plans to offer 8.8 million shares priced between $52 and $57, targeting a valuation of up to $5.16 billion. Trading under the ticker “TTAN” on the Nasdaq, ServiceTitan’s IPO is backed by financial heavyweights Goldman Sachs and Morgan Stanley. ServiceTitan’s software simplifies essential tasks such as scheduling and payments for trades professionals, providing much-needed solutions in an industry frequently underserved by technology. The IPO reflects both the company’s rapid growth and a broader trend of integrating advanced tools into foundational industries.

                      SpaceX: Shooting for the Stars (and $350 Billion)

                      Image Source: SpaceX

                      SpaceX is on the verge of solidifying its place as the world’s most valuable startup, with insiders estimating a valuation of $350 billion, according to Forbes. It’s not just about rockets anymore; this company has its sights on global internet domination with Starlink and a future where Mars isn’t just science fiction. Investors are clearly betting big on SpaceX’s ability to pull off the impossible—time and time again. The company’s achievements not only redefine the limits of private enterprise but also establish SpaceX as a key player in reshaping humanity’s relationship with space. For the LA tech scene, SpaceX’s valuation is more than a number; it’s a reminder of what’s possible when ambition meets execution. The question isn’t “what’s next?”—it’s “what’s not?”

                      Anduril x OpenAI: The Future of AI Defense

                      Image Source: Anduril

                      In a move that underscores the rapid convergence of defense and cutting-edge AI, Costa Mesa-based Anduril Industries announced a partnership with OpenAI. This collaboration aims to bolster U.S. leadership in artificial intelligence while enhancing national security capabilities. Anduril, known for its autonomous defense technologies, is leveraging OpenAI’s advanced AI systems to supercharge its offerings. The implications? Think faster decision-making and smarter tech on the battlefield. This partnership not only signals Anduril’s commitment to innovation but also highlights the growing importance of AI in reshaping defense.

                      The Rose Bowl Legacy: Preserving an Icon

                      Image Source: VisitPasadena

                      The Rose Bowl, Pasadena’s iconic stadium and a symbol of Southern California’s rich history, is gearing up for an $80 million transformation as part of its "Lasting Legacy Campaign." This effort isn’t just about preparing for the 2028 Olympics—it’s about enhancing the fan experience while staying true to the venue’s historic roots. From new field-level club seats to a cutting-edge videoboard, upgraded Wi-Fi, and even a refurbished marquee sign, this project balances nostalgia with modern innovation. The Rose Bowl has always been more than just a stadium—it’s a cultural landmark that represents LA’s ability to honor its past while embracing the future. If there’s a place that embodies where history meets progress, it’s here.

                      2024 Wrapped: Your Year in Music

                      Image Source: Spotify

                      As the year winds down, music lovers are diving into Spotify Wrapped and Apple Music Replay 2024. These features don’t just highlight our favorite tracks; they showcase how deeply music integrates into our daily lives and memories. For anyone in the tech or startup world, these features are a masterclass in how data-driven personalization can deepen user loyalty and turn casual interactions into powerful engagement.

                      Whether it’s setting the stage for the next space frontier, advancing national security with AI, or revitalizing a cultural landmark, this week’s stories remind us that progress is as much about preserving what matters as it is about reaching for what’s next.


                      🤝 Venture Deals

                      LA Companies

                      • Nectir, an educational technology company that allows educators to design customized AI teaching assistants providing students with 24/7 personalized support, has raised a $4M Seed funding round led by Long Journey Ventures to develop new features and expand its team. - learn more
                      • Talus Network, a blockchain platform merging AI and decentralized tech to create smart agents, has raised a $6M Strategic funding round led by Polychain Capital at a $150M valuation to advance its ecosystem, including Protochain, Nexus, and an AI dating app. - learn more
                      LA Venture Funds
                      • Plus Capital participated in a $35M Series B funding round for Sage, a New York-based company specializing in senior living operations, to enhance its technology platform and expand its services across the U.S. and internationally - learn more
                      • Supply Chain Capital led a $4.5M Seed funding round for Celleste Bio, a cocoa tech company specializing in cell-cultured cocoa production, to scale its manufacturing capabilities and accelerate sustainable cocoa innovation. - learn more
                      • Village Global co-led a $5.75M Seed funding round for Across AI, a San Francisco-based startup developing AI-driven enterprise solutions, to accelerate product development and expand its team. - learn more
                      • M13 led a $5.4M Seed funding round for Cat Labs, an Austin-based startup focused on combating crypto and AI-enabled crime, with the funds being used to develop tools and services that address digital asset security threats. - learn more
                      • Chapter One Ventures participated in a $4M Seed funding round for Fiamma, a Singapore-based startup focused on decentralized finance infrastructure, with the funds being used to develop innovative tools for secure and efficient on-chain lending. - learn more
                      • The Games Fund participated in a $3M funding round for Playgama, a gaming platform that simplifies the distribution and monetization of HTML5 games across various platforms; the investment will be used to enhance their Platform-as-a-Service ecosystem, including monetization, quality assurance, and management tools. - learn more
                      • Fika Ventures led a $6M Seed funding round for StretchDollar, a Pittsburgh and San Francisco-based fintech startup that simplifies health benefits for small businesses through a self-service platform; the funds will be used to enhance their platform and expand their team. - learn more
                      • OCV participated in a $27.6M funding round for OSSIO, a Woburn, Massachusetts-based medical device company specializing in bio-integrative orthopedic implants; the funds will accelerate commercial efforts, including new product development and establishing a manufacturing and training center in Florida. - learn more
                      • Avalaunch participated in a $6.5M Seed funding round for Avant, a Palo Alto-based decentralized finance protocol that issues a "stable-value" token called avUSD, to scale its crypto yield products. - learn more
                      • Rebel Fund participated in a $2.5M Seed funding round for Circleback, a San Francisco startup that uses AI to generate meeting notes and action items, integrating with platforms like HubSpot and Notion; the funding will support expansion and development. - learn more

                      LA Exits

                      • Of Kos, formerly VMed, a healthcare marketing agency specializing in digital and creative solutions, has been acquired by ONAR, a global network of marketing agencies, as part of its expansion into the healthcare marketing sector. - learn more
                      • Rhapsody Voices, a boutique podcast network representing leading content creators and offering tailored solutions for revenue growth through sponsorship representation, content creation, strategy, and marketing, has been acquired by Evergreen Podcasts. - learn more
                      • TEDIVO, a Long Beach-based software provider specializing in container supply chain tools like BAPLIE Viewer Online, has been acquired by Lynxis to enhance its port orchestration products and improve cargo management efficiency. - learn more

                      Download the dot.LA App

                      RELATEDEDITOR'S PICKS
                      Trending