Foreign capital is a normal part of the US startup market. A large share of venture money invested in American companies traces back to non-US limited partners, and plenty of hardware companies are funded by individuals living outside the country. The check clears the same way. What differs is the paperwork around it, plus one question software founders rarely face: whether the transaction triggers a national security review.
None of this makes foreign investment a bad idea. It makes it a transaction to plan three or four weeks earlier than a domestic one.
CFIUS: When a Foreign Investment Becomes a Reviewable Transaction
The Committee on Foreign Investment in the United States reviews transactions that could give a foreign person control of, or certain rights in, a US business. Its jurisdiction was substantially widened by FIRRMA, which extended review beyond outright control to non-controlling investments in a defined set of sensitive businesses.
The categories that matter for a hardware startup are usually described as TID businesses: those dealing in critical technology, critical infrastructure, or sensitive personal data. Critical technology is defined by reference to the export control lists, which is the connection most founders miss. If your product would need a license to export under the export administration regulations or the munitions list, a foreign investment in your company may fall within CFIUS jurisdiction.
The triggers for a non-controlling investment are specific. Review can attach where the foreign investor gets any of:
- Access to material non-public technical information;
- Membership or observer rights on the board, or the right to nominate a director;
- Any involvement in substantive decision-making about critical technology, critical infrastructure, or sensitive data.
Note what that list means in practice: a passive check with no board rights and no technical access is usually outside the net, while the same check with a board seat may not be. This is a strong argument for thinking carefully about whether to give an investor a board seat before the term sheet, not after.
Most filings are voluntary, but certain transactions require a mandatory declaration, notably where a foreign government holds a substantial interest in the investor, or where critical technology is involved and an export license would be required to transfer it to the investor's home country. Penalties for failing to file when required can reach the value of the transaction. A declaration is a short filing with a 30-day assessment period; a full notice runs 45 days of review with a possible 45-day extension. Budget legal fees accordingly, on top of the normal legal costs of a funding round.
Export Control and the Deemed Export Problem
Separate from CFIUS, and often more immediately relevant, is the deemed export rule. Releasing controlled technical data to a foreign national inside the United States is treated as an export to that person's country of nationality. There is no border crossing required. Handing a controlled drawing package to a foreign board observer in a conference room is an export.
For most consumer products this is a non-issue. For anything with defense, aerospace, encryption, advanced sensing, or dual-use characteristics it is real. Companies building unmanned systems run into it constantly; the mechanics are laid out in how a drone design becomes dual-use, and the same logic applies to thermal imaging, certain radios, and specialized materials. Before you close, classify your technology honestly and put technology-access limits in the side letter rather than assuming good behavior.
Securities Law: Reg S and Reg D
Selling equity to someone abroad is still a securities offering. Two exemptions do most of the work.
| Regulation D | Regulation S | |
|---|---|---|
| Who it covers | US and foreign investors buying into a US offering | Offers and sales made outside the United States |
| Key condition | Accredited investor status; no general solicitation under 506(b) | Offshore transaction, no directed selling efforts into the US |
| Common use | Foreign angels who meet accreditation tests | Purely offshore funds and investors |
Many rounds use both, side by side, for different investors. Accreditation for a non-US individual is measured by the same income and net worth tests, converted to dollars. Get the verification documentation at signing; reconstructing it during a later diligence process is painful. Expect the next institutional investor to check exactly this, as the standard diligence review covers the legality of every prior issuance.
Tax and Withholding
A foreign investor in a US C-corp files a Form W-8BEN, or W-8BEN-E for an entity, to certify non-US status and claim any treaty benefits. Without a valid form on file, the company must withhold at the statutory 30% rate on US-source dividends and similar payments; a treaty may reduce that materially, sometimes to 15% or lower.
Startups rarely pay dividends, so the practical points are narrower: collect the W-8 forms at closing and keep them current, expect your investor to ask whether the entity is a C-corp, and understand that most foreign institutional investors strongly prefer a Delaware C-corp over an LLC because LLC income flows through and creates US filing obligations for them. If you are not yet incorporated in a form that foreign money can easily enter, resolve the question in choosing between an LLC and a C-corp before you start the raise.
Banking, KYC, and the Wire That Does Not Arrive
The most common practical failure is mundane. An international wire from a jurisdiction your bank considers higher risk can sit in compliance review for one to three weeks. Some US banks will simply return funds from certain countries rather than process them.
Reduce the friction: tell your bank in advance that an inbound international wire is coming and from where, collect the investor's full legal name, address, and entity documentation ahead of time, ask the investor to send from an account in their own name rather than a third party, and give yourself a closing window that assumes delay.
What It Means for the Company Later
Foreign investors on the cap table are normal and rarely a barrier. They can become one in narrow cases: bidding on certain federal contracts, participating in some defense programs, or clearing facility security requirements. If a government channel is part of your plan, raise the question before you take the money. Foreign investors can equally be an asset, and are often the fastest route into a first international market. Whatever the source, read every clause in the term sheet and do not assume an unfamiliar structure is standard practice somewhere else.
Projects House works with US and international founders on the engineering side of hardware ventures, including the design documentation and technical files investors examine during diligence. Tell us about your product through our contact form. This article is general information, not legal or tax advice; CFIUS, export control, and securities questions belong with qualified counsel.