How Space Startups Buy Hardware Before They Have a Supply Chain Team
Most early space companies buy parts the way engineers prototype: fast, informally and from whoever answers first. That works until the first flight unit, a government award or an export question arrives, so the job is to add just enough purchasing discipline at each stage without slowing the build.
Updated
Who is actually buying at a space startup
At a seed or Series A space company, the buyer is usually the design engineer. There is no purchasing department, no approved supplier list and no receiving inspector, and the purchase order is often a credit card charge with a STEP file attached.
That pattern shows up across the main startup segments:
| Segment | What they buy outside | Where it gets hard |
|---|---|---|
| Small launch | Engine and feed system parts, tank and structure details, test stand hardware, valve bodies and manifolds | Oxygen service cleaning, weld quality on pressure parts, many revisions per month |
| In-space mobility and servicing | Thruster and propellant system parts, mechanism parts, docking and capture hardware | Tight mechanism tolerances, outgassing limits on soft goods, propellant compatibility |
| Lunar landers and surface systems | Large lightweight structures, landing leg and thermal parts, instrument mounts | Mass targets, dust and thermal extremes, customer mission assurance reviews |
| Space stations and habitats | Pressure shell details, racks and secondary structure, crew interface parts | Crewed safety rules, flammability and offgassing screening, long qualification chains |
| Satellite constellations | Bus structure parts, brackets, harnesses at volume, dispenser interfaces | Moving from 2 units to 200 without the supplier or the paperwork breaking |
The common problem is not finding a shop. It is that the habits that got the first prototype built in six weeks are the same habits that fail an investor's technical diligence, a NASA or Space Force program review, or a launch provider's integration readiness review.
Prototype to flight: what changes on the purchase order
The part may not change much between the first prototype and the flight unit, but the evidence you need about it changes completely. Decide which stage each order belongs to and write it on the PO.
| Stage | What you need from the supplier | What you can skip |
|---|---|---|
| Concept and fit check prototypes | Speed, a dimensional sanity check on critical features, correct material family | Material certs, FAI, formal C of C, special process certs |
| Engineering development units | Correct alloy and temper, critical dimensions measured, finish to the intended spec | Full AS9102 FAI, source inspection |
| Qualification units | Built exactly like flight: same material spec, process specs, supplier and sequence, with certs kept | Very little; a qual unit built differently from flight does not qualify the flight design |
| Flight and production | C of C, material certs traced to heat or lot, special process certs, AS9102 FAI on first production lot, revision control | Nothing that your customer or launch provider asked for |
The expensive mistake is a qualification unit bought like a prototype. If the qual article came from a different shop, a different heat treat house or an uncontrolled drawing revision, a reviewer can fairly ask whether the test proved anything about the flight hardware. Move to flight-style purchasing one stage earlier than feels necessary.
Have a part like this?Send it in under a minute. A person replies within 1 business day.When a startup needs AS9100 suppliers, and when it does not
You need AS9100 certified suppliers when a customer contract, a prime's flow-down or your own quality manual requires them, and that usually starts with qualification and flight hardware. For fit checks, test stand parts and most ground hardware, a capable shop with good inspection habits is often the better buy.
AS9100 is the aerospace quality management standard published through SAE and the International Aerospace Quality Group. The IAQG is renumbering its next revision as IA9100, and NASA's safety and mission assurance office reported a publication estimate in late 2026, so check which revision your customer cites. Certification tells you the shop runs a documented system for control of nonconforming product, configuration and records. It does not tell you the shop can hold your tolerances on your material.
Reasonable rules for a small team:
- Prototypes and test stand parts: any shop that can make the part, measure it and tell you the truth about it.
- Ground support and handling hardware: certified shops are a plus; weld and proof test records matter more than the certificate. See our launch provider page for GSE paperwork.
- Qual and flight hardware: AS9100 certified suppliers by default, plus Nadcap or customer approval for special processes when your customer requires it.
- Government funded hardware: read the contract. The quality clause, not your preference, sets the floor.
If you are weighing whether your own company should certify, our supplier side page on AS9100 cost and timeline covers what the process involves.
Design for manufacture when the design changes every week
Fast iteration is cheaper when the drawing tells the shop which features matter and which can move. Most startup cost overruns on machined parts come from tolerances copied from a CAD default, not from the geometry itself.
- Put tight tolerances only where function needs them. Bearing bores, sealing faces, interface hole patterns and datum features. Use a general tolerance block for the rest.
- Pick stock sizes and common alloys during prototyping. A part designed around 6061-T651 plate in a stock thickness can be quoted and cut the same day; an odd titanium bar size can wait weeks for material. See our aluminum alloys guide.
- Avoid features that need special tools unless they earn their place: deep small-radius pockets, thread sizes the shop does not stock taps for, and internal corners sharper than a standard end mill can cut.
- Keep the model and the drawing in sync. If the shop machines from the model, say so, and say which document wins in a conflict.
- Ask for DFM comments before the PO, not after the first part fails inspection. A machinist's note that a wall is too thin to hold flatness is free at quote time.
For a breakdown of what drives price on aerospace parts, see the machining cost guide.
Rapid quote and rework loops
A quick turn depends on how fast the buyer answers as much as how fast the shop cuts. Startups lose more days to unanswered supplier questions and unclear revisions than to machine time.
- Send a complete package once. Model, drawing, revision, material, finish, quantity and need date in the first message. A missing finish callout can stall a quote for days.
- Name one person who can approve a deviation and make sure the shop knows how to reach them the same day.
- Freeze the revision on the PO. If the design changes mid job, issue a change in writing with the price and date impact agreed before work continues.
- Decide rework rules in advance. Who pays when a part is out of tolerance because of a drawing error, and who pays when it is the shop's error. Settling this before the first failure keeps the relationship intact.
- Close the loop on every escape. Write down what went wrong and what changed on the drawing or PO so the next order does not repeat it.
When one part needs several shops, for example machining, anodize and precision cleaning, the handoffs between them are where weeks disappear. That is the gap a sourcing partner is meant to close.
Building a first quality system and an FAI habit
You do not need a full quality department to buy flight hardware well, but you do need a few written habits that survive staff turnover. Start them before the first flight order, because reconstructing records afterward rarely works.
- Drawing and revision control. One released drawing per part number, a revision letter on every PO, and a rule that superseded drawings are never sent to suppliers.
- A simple approved supplier list. Who you bought from, what they are approved for, and why. Even a spreadsheet counts if it is kept current.
- Receiving inspection. Check the paperwork against the PO, check critical features, and quarantine anything that does not match. Our receiving inspection guide covers the basics.
- First article inspection. Require an AS9102 FAI the first time a supplier makes a flight part, and again after a design change, a process change or a long production gap. Our FAI guide for buyers explains the three forms and when a partial FAI is enough.
- Certs on file by serial or lot. Material and process certs scanned and linked to the part they belong to, so a reviewer can trace any flight part back to its heat of material.
These habits are also what an investor's or customer's technical diligence looks for. A two-page procedure that people follow beats a forty-page manual nobody reads.
Export control from day one
Classify your own hardware and technical data before you send drawings to anyone, because a startup is responsible for the jurisdiction of the items it designs. Spacecraft, launch vehicle and propulsion items can fall under the ITAR or the EAR, and the answer changes what you may share and with whom.
- Classification. Decide, with export counsel if needed, whether each item is on the US Munitions List or subject to the EAR, and if EAR, which entry. Record it and put it on every RFQ and PO.
- DDTC registration. Under 22 CFR 122.1, a company in the business of manufacturing or exporting defense articles must register with the Directorate of Defense Trade Controls, and the rule states that a manufacturer that does not export must still register. If your hardware is ITAR controlled, this applies to you, not just to your suppliers.
- Foreign national employees and deemed exports. Releasing controlled technology or source code to a foreign person inside the US is a deemed export under 15 CFR 734.13 of the EAR, treated as an export to that person's most recent country of citizenship or permanent residency. The ITAR treats release of technical data to a foreign person in the US the same way under 22 CFR 120.50. Startups hiring internationally need a technology control plan and, where required, licenses before those engineers see controlled data.
- Suppliers. Send controlled drawings only to shops set up for them, through a secure channel, to US persons where required.
Our controlled programs page describes the process we use for ITAR, EAR and CUI requests, and our confidentiality page covers NDAs and file handling.
Government funding that brings flow-downs
Non-dilutive government money is common in the space startup world, and almost all of it arrives with contract clauses that change how you must buy hardware. Read the clauses before you place the first order under the award.
- SBIR and STTR. The programs' authority lapsed on September 30, 2025 and was restored when the Small Business Innovation and Economic Security Act of 2026 (S. 3971) was signed on April 13, 2026, extending them through September 30, 2031, according to Crowell and Moring. The new law adds foreign ties due diligence on applicants and, from fiscal 2027, limits on proposals per company. A DoD SBIR award is a contract, so its FAR and DFARS clauses apply to your purchases under it.
- SpaceWERX. The Space Force's innovation arm, a division within AFWERX, funds small businesses through SBIR and STTR and runs the STRATFI and TACFI growth programs. STRATFI is limited to companies that received a Phase II award within the prior 24 months and is meant to carry the technology into a Phase III contract.
- NASA Tipping Point. NASA's Space Technology Mission Directorate describes these as funded Space Act Agreements that require an industry contribution of at least 25 percent of total project resources, or 10 percent for companies with 500 or fewer employees. NASA's page listed no open opportunity when we checked.
- Cybersecurity clauses. Defense awards that involve controlled unclassified information typically carry DFARS 252.204-7012, and the CMMC clause, DFARS 252.204-7021, began appearing in contracts when Phase 1 of the CMMC rollout started on November 10, 2025. Both flow down to suppliers that handle the covered information.
The practical effect: once an award is signed, your suppliers may need to accept clause flow-downs, keep records longer and protect your data to a defined standard. Our defense contractors page covers DFARS sourcing clauses in more depth.
What a startup should put on the RFQ
An RFQ from a startup gets a better price and a faster answer when it tells the shop what stage the part is for and what evidence you will want at delivery. Include:
- Part number, drawing revision, and the model file with a note on which governs.
- Stage: prototype, development unit, qualification or flight.
- Material by specification and temper, and whether certs must trace to heat or lot.
- Finish and any special process, with specification, type and class.
- Critical features to be measured and reported, or AS9102 FAI if required.
- Cleanliness and packaging, especially for propulsion and mechanism parts.
- Export classification, or a clear statement that the item is not controlled.
- Any funding source that brings clause flow-downs.
- Quantity now, expected quantity later, and the need date.
The full list, with what each item protects you from, is on our aerospace RFQ checklist. University teams buying for CubeSats face a different set of rules, covered on our research labs and universities page, and spacecraft builders at volume should read the satellite manufacturers page.
How Aerospace Sourcing fits a startup without a buyer
We act as the purchasing function a young company does not have yet. You send one request; we match it to qualified suppliers, flow down your requirements, track the job, check the paperwork, and deliver with a certificate of conformance and any other certs the request calls for. When a part needs a machinist, a finisher and a cleaner, you still get one quote, one lead time, one point of contact and one purchase order.
We do not run machines, we do not replace your engineering authority or your receiving inspection, and we cannot promise a supplier or a lead time until a qualified shop has reviewed the job. Every supplier signs a flow-down NDA before seeing your files, and suppliers do not learn who you are unless you approve. No ITAR, EAR or CUI data moves through our website.
Send your next prototype or flight part
If you have a part moving from prototype to qualification or flight and no one on the team owns purchasing, send it through the CNC machining quote form. Tell us the stage, the drawing revision, the export classification and any funding award that brings flow-downs, so the supplier quotes the right paperwork the first time. A person replies within one business day, and rush requests are prioritized.
Send the job. A person replies within 1 business day.
Part, quantity and date are enough to start. Drawings and the mutual NDA follow by reply, and controlled programs never send technical data through this site.
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Questions
Do space startups need AS9100 certified suppliers for prototypes?
Usually not. For fit checks, test stand parts and early development units, a capable shop with honest inspection is often faster and cheaper. AS9100 suppliers become the default for qualification and flight hardware, and whenever a customer contract or prime flow-down requires them. The one stage where startups most often get this wrong is qualification: a qual unit should be built by the same process and supplier chain as flight, or it may not qualify the flight design.
When should a startup start requiring first article inspection?
Require an AS9102 first article inspection the first time a supplier makes a part that will fly, and again after any design change, process change, supplier change or long gap in production. Prototypes rarely need it; a measured report on the critical features is usually enough. Starting the FAI habit with the first qualification order makes the flight order routine instead of a scramble to rebuild records.
Does my startup need to register with DDTC if we only build hardware and do not export?
If your hardware is a defense article on the US Munitions List, probably yes. Under 22 CFR 122.1, anyone in the business of manufacturing or exporting defense articles must register with the Directorate of Defense Trade Controls, and the rule says a manufacturer that does not export must still register. Confirm your classification first, ideally with export counsel, because many commercial spacecraft items are controlled under the EAR instead.
Can foreign national engineers at my startup see our drawings?
It depends on how the data is classified. Releasing EAR controlled technology to a foreign person in the US is a deemed export under 15 CFR 734.13, and the ITAR treats release of technical data to a foreign person in the US the same way. Uncontrolled data can be shared freely. Controlled data may need a license or other authorization before the release, so classify first and build a technology control plan.
What changes when a startup wins an SBIR or other government award?
The award's clauses start applying to your purchases. A DoD SBIR contract carries FAR and DFARS clauses, and awards involving controlled unclassified information typically include DFARS 252.204-7012 and may include the CMMC clause, DFARS 252.204-7021. Suppliers that handle covered information need those requirements flowed down. NASA Tipping Point awards are funded Space Act Agreements with a cost share, and their terms also shape records and reporting.
How fast can you turn a startup prototype part?
We do not promise a lead time until a qualified supplier has reviewed the job, because any date given before that is a guess. A person replies within one business day and rush requests are prioritized. The fastest quotes come from complete packages: model, drawing revision, material, finish, quantity, need date and export classification in the first message, with one person on your side who can approve deviations quickly.
Related
Sources
- eCFR via Cornell LII: 22 CFR 122.1, ITAR registration requirement
- eCFR via Cornell LII: 15 CFR 734.13, export and deemed export (EAR)
- eCFR via Cornell LII: 22 CFR 120.50, export and deemed export (ITAR)
- BIS: Deemed exports
- Crowell and Moring via Mondaq: SBIR/STTR programs reauthorized after six month lapse
- DVIDS: AFWERX and SpaceWERX announce Strategic Funding Increase selections (Mar. 2024)
- NASA: Space Tech Industry Partnerships (Tipping Point cost share)
- NASA: 2023 Tipping Point selections
- Schwabe: CMMC Phase 1 starts November 10, 2025 (DFARS 252.204-7021)
- NASA SMA: Status of IA9100 quality management system development
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