Prototype sourcing without a procurement team.
Component selection drives BOM cost more than most founders realize (Protolabs). Major distributors serve high-volume production — startups get underserved on specialty, surplus, and low-MOQ parts. 3E levels the playing field: free search across 105,000+ suppliers, with our deep research system hunting the sources Mouser and Digi-Key don’t index.
How 3E Helps
Free forever to start
5 free unlocks per month, no card required — enough to source a prototype. Search is unlimited and free for anyone. Credit packs from $19 and unlimited at $49/month when you scale.
Beyond Mouser and Digi-Key
Catalog distributors cover standard parts at volume. 3E searches 105,000+ brokers, surplus dealers, and small-batch manufacturers — the sources those platforms don’t index.
Surface the parts that aren’t listed
Our deep research system runs multi-round investigations to track down specialty components, discontinued ICs, and niche connectors. It keeps looking after you close the tab — and emails you when a new source surfaces.
Startups welcome, no MOQs
The 3E network includes suppliers who work with small orders — small-batch manufacturers, prototype shops, surplus dealers, and specialty distributors without minimum order requirements.
Example
50 waterproof connectors for a prototype
You’re building a hardware prototype and need 50 units of a specific IP68 connector. Mouser shows it discontinued. Digi-Key shows it out of stock for 16 weeks. Search the part number on 3E — three suppliers appear, including a surplus dealer willing to ship 50 units. One free monthly unlock gets you the contact. Order placed before lunch.
Frequently Asked Questions
Is there a minimum order to use 3E?
No. 3E is a supplier discovery platform — we connect you with companies, and you negotiate directly with them. Many suppliers in the 3E network specifically work with startups and small orders. Search is free, and every account gets 5 free unlocks per month with no card required.
Can a startup afford 3E?
Yes. Search is always free, with no account required to browse. Every registered account gets 5 free unlocks per month — enough for early-stage sourcing. Credit packs start at $19 for 10 unlocks when you need more; unlimited at $49/month when you scale.
How does 3E help with prototyping specifically?
Prototyping requires specialty parts, small quantities, and suppliers willing to work outside standard distribution channels. 3E’s network of 105,000+ companies includes brokers, surplus dealers, and small-batch manufacturers — the sources you won’t find on Mouser or Digi-Key. And when a part is genuinely rare, our deep research system keeps hunting and emails you when it surfaces.
Why do hardware startups struggle with parts sourcing?
Startups face a sourcing paradox: they need the same components as large OEMs but lack procurement teams, supplier relationships, and volume leverage. According to Protolabs, component selection drives BOM cost more than most founders realize. Major distributors like Mouser and Digi-Key serve high-volume production well, but startups needing specialty, surplus, or low-MOQ components get underserved. 3E’s free tier and deep research system level the playing field — the sources pros use, without the procurement-team overhead.
Ready to start?
Free to search. 5 free unlocks per month. Credit packs and unlimited plans available.
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