on-demand-manufacturing
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SHEIN Turned the Fitting Room Into a Feedback Loop
The $40 billion fashion machine does not begin with a runway forecast. It begins with a tiny batch, a live stream of clicks and a question repeated at industrial speed: should we make more?
Forge Automation (YC W25)
Forge Automation runs software-enabled factories that machine custom metal parts and ship them in four days or less. Engineers upload a CAD model to forgejobshop.com, get an instant quote, and pay online. Its in-house software, Foundry, automatically turns CAD files into machine-ready toolpaths, and customers can either order on-demand or reserve a dedicated CNC machine with a guaranteed production SLA. Founded in 2022 in Toronto by Timothy Seto and Walter Raftus, the company went through Y Combinator's Winter 2025 batch and serves hardware, robotics, and hard-tech teams from early-stage startups to Fortune 10 companies.
Prototyping.io
Prototyping.io is a San Francisco startup (YC Spring 2026) building an AI-native manufacturing platform that turns CAD designs into finished mechanical parts in as little as one day. It automates the traditionally manual path from design to production - DFM analysis, sourcing, process planning, machine programming and setups - so hardware teams can iterate in days instead of weeks. The company serves customers from early-stage startups to multi-billion-dollar enterprises across robotics, AI infrastructure, energy, automotive and defense.
Vendra
Vendra is a San Francisco-based, YC-backed (S24) manufacturing platform that connects hardware teams with US manufacturers for custom parts. Customers submit a single RFQ; Vendra reads the CAD and drawings, matches the job to domestic suppliers with the right equipment and open capacity, gathers competitive quotes, and manages production through delivery. It is ITAR-registered and focused on aerospace, defense, and hard-tech companies, positioning itself against legacy quoting platforms like Xometry and Protolabs with real-time capacity matching.
Shapeways
Shapeways is an Eindhoven-based 3D printing and digital manufacturing company that lets individuals and businesses upload 3D files and receive custom parts made through additive manufacturing, CNC machining and injection molding. Founded in 2007 inside Royal Philips, it pioneered a public 3D printing service and marketplace, went public via SPAC in 2021, filed for bankruptcy in 2024, and was relaunched in December 2024 by its original founders and the profitable Eindhoven factory team with a renewed focus on B2B customers, sustainability and operational stability.
unspun
unspun is a San Francisco-based fashion-technology company that built Vega, the world's first 3D weaving system for apparel. Vega weaves garments directly from yarn in minutes, skipping cut-and-sew steps to enable on-demand, near-zero-waste, locally produced clothing. A certified B Corp founded in 2015, unspun sells custom-fit jeans direct to consumers while licensing its hardware and software to brands and retailers aiming to decarbonize their supply chains. Its stated mission is to reduce global human carbon emissions by 1%.
Marleen Vogelaar
Marleen Vogelaar is a Dutch entrepreneur who co-founded Shapeways in 2007, helped build it into the world's largest 3D printing marketplace, left in 2014 to start the on-demand apparel company Ziel, and then returned to Shapeways as CEO in December 2024 after the company went bankrupt - buying back the brand and rebuilding it around a leaner, B2B, profit-first model. A former competitive heptathlete and industrial engineer, she is known for pairing operational discipline with an insistence that a company's mission should not be hostage to its investors, an idea she put into practice by converting Ziel to steward-ownership.
Factorem
Factorem is an AI-driven on-demand manufacturing platform based in Singapore. Founded in 2020 by Alexandra Zhang and Hardik Dobariya, it lets engineering and hardware teams upload a CAD file, get an instant quote, and order custom parts - CNC machining, 3D printing, sheet metal fabrication, injection molding and surface treatment - from a vetted network of Southeast Asian factories, with no minimum order quantity. The platform uses AI to scan designs, match them to the best-suited manufacturer, and manage end-to-end fulfilment, compressing prototyping timelines from months to days.
Tailored Industry
Tailored Industry is a Brooklyn-based on-demand knitwear manufacturer that pairs industrial 3D 'wholegarment' knitting machines with a proprietary software platform. It lets fashion brands of any size produce seamless sweaters and knit staples with zero minimums and near-zero waste, matching supply to actual demand instead of guessing seasons in advance.
Alexander Tschopp
Alexander Tschopp is the co-founder and CEO of Tailored Industry, a Brooklyn-based on-demand knitwear manufacturer and software platform that uses Shima Seiki WHOLEGARMENT 3D knitting machines to produce luxury sweaters with zero minimum order quantities and 3-to-6-day turnaround. A Cornell Dyson School graduate who hooked into business after reading an Andrew Carnegie biography at age 12, he started selling college-branded products to hundreds of retailers as an undergrad before setting out to revive American knitwear manufacturing - eliminating overproduction by matching supply precisely to demand.
Alexandra Zhang
Alexandra Zhang is the co-founder and CEO of Factorem, an AI-native, on-demand manufacturing platform born in Singapore that connects hardware and photonics teams with a vetted network of factories across Southeast Asia. After hitting sourcing walls as an engineer building EV transmissions in Toronto, she built the platform she wished she'd had: instant quotes, no minimum order quantities, and lead times cut from months to days. A Forbes 30 Under 30 honoree, she relocated from Singapore to Colorado to open the U.S. market, which now drives nearly half of company sales.
THE/STUDIO
THE/STUDIO is a custom product manufacturing and on-demand merchandising platform that connects brands, creators, and organizations to a global network of vetted factories. Founded in 2013 as a custom patch shop, it now produces 300+ categories of custom goods - pins, patches, apparel, coins, drinkware and more - with no minimum orders, fast turnaround, and software that compresses the traditional sourcing process from months to days. The company positions itself as a modern, ethical answer to slow legacy manufacturing, serving over 100,000 customers including Nike, Adidas, Netflix, Uber and the Met Store.
Joseph Heller
Joseph Heller is the CEO and founder of THE/STUDIO, the company behind TheStudio.com and SuppliedShop.com, a supply-chain platform that connects creators, brands and small businesses with vetted factories worldwide so anyone can make custom products - patches, pins, apparel, medals and more - without minimum orders or sourcing expertise. After more than a decade working with factories in China, he built a low-MOQ, on-demand manufacturing model and a fully remote, globally distributed team, raising an $11M Series A in 2018 after 18 months and more than 150 investor rejections. His through-line is democratizing access to manufacturing as a path to broad-based wealth creation.
Minted
Minted is a San Francisco design marketplace that turns crowdsourced art from independent artists into holiday cards, wedding invitations, wall art, and home decor printed on demand. Founded in 2007 by Mariam Naficy, the company runs continuous design competitions where its community of 15,000+ artists submit work, customers vote, and winning designs are produced and sold worldwide.