DoD Office of Strategic Capital, explained

The Office of Strategic Capital is a Department of Defense finance office that issues loans and loan guarantees — not grants — to companies expanding US manufacturing capacity in technologies the Pentagon considers critical to national security, and it made its first direct loan in August 2025.

What the Office of Strategic Capital does

The Office of Strategic Capital (OSC) attracts and scales private capital toward US manufacturing capacity in critical technologies by lending directly and by guaranteeing loans, rather than by handing out research grants or awarding traditional procurement contracts. Then-Secretary of Defense Lloyd Austin established OSC on December 1, 2022 to close a specific gap: private capital markets often won't finance defense-relevant industrial capacity because the demand signal is a government program, not a proven commercial market, and DoD's existing tools — grants, cost-plus contracts, procurement — don't function like commercial debt or equity. OSC sits inside the Office of the Under Secretary of War for Research and Engineering, and Congress later wrote its duties directly into law.

OSC's own program page currently describes two capital tools: direct loans of up to $150 million to finance a US manufacturing-facility project, and Investment Fund Financing, which extends leverage to third-party investment funds rather than lending straight to an operating company. Both are debt, not equity — OSC does not take an ownership stake or a board seat in exchange for financing.

The statutory basis: 10 U.S.C. §149

10 U.S.C. §149 is the law that formally creates the Office of Strategic Capital inside the Office of the Secretary of Defense and defines what it's allowed to do. The section was added by Section 903 of the FY2024 National Defense Authorization Act (Public Law 118-31), per the Congressional Research Service's summary of the statute, which converted what had been a Secretary-level policy office into a permanent, legally defined one. The statute assigns OSC a Director — appointed from the Senior Executive Service or an equivalent outside hire — and three core duties: developing capital-investment strategies proven in the commercial sector, identifying and prioritizing critical technologies that need capital assistance, and making eligible investments (loans, loan guarantees, and technical assistance) in those technologies.

Two statutory details matter more to a researcher than the mission language does. First, for direct loans, the statute requires that at least 80% of the total capital for a given project come from non-federal sources — OSC's dollars are meant to unlock private capital, not substitute for it, so a loan is structurally a minority piece of the financing stack, not the whole deal. Second, the pilot program's authority to issue new loans and loan guarantees is not permanent: it expires October 1, 2028 under current law, so anything OSC finances has a statutory clock running against it, and a loan issued today is issued under authority that Congress would have to renew to keep making new deals past that date.

How an OSC loan differs from an SBIR/STTR grant

The mechanical distinction is repayment: an OSC loan has to be paid back with interest from a real commercial revenue stream, while an SBIR or STTR award is non-dilutive grant money the recipient never repays. That difference cascades into everything else about who qualifies. SBIR/STTR is built for early-stage, often pre-revenue small businesses proving out a new technology — the government is explicitly funding technical risk it doesn't expect repaid. OSC's Credit Program eligibility rules go the other direction: they exclude early-stage or pre-revenue companies without a sponsor guarantee, exclude projects where the federal government is the sole customer, and exclude any project that depends on federal funding to make its loan payments. OSC is underwriting a company's ability to repay debt from commercial cash flow, the same way a bank would — it is a scale-up and manufacturing-capacity tool for companies that have already cleared the technology-risk stage SBIR/STTR is built to fund, not a follow-on grant program.

Put another way: SBIR/STTR asks "can this technology work?" OSC's Credit Program asks "can this company repay $150 million in debt from a real production line?" A company can plausibly move through both in sequence — SBIR/STTR to de-risk the technology, then OSC debt to finance the factory that makes it at scale — but they are not substitutes, and OSC financing does not appear on a company's books as revenue any more than a bank loan does.

Who can actually borrow from OSC

Eligible borrowers are creditworthy, US-domiciled public or private companies — including US entities with foreign ownership — with a viable commercial project that supports a "Covered Technology Category" under the office's own eligibility criteria, a term defined in Section 903 of the FY2024 NDAA rather than a fixed public list. That project selection sits alongside the Department of War's own broader framework: the department has separately identified six Critical Technology Areas (CTAs) it prioritizes department-wide, spanning categories like advanced manufacturing and critical minerals processing, which OSC's project screening draws on. Eligible uses of the financing include capital investment in property, plant, and equipment plus associated soft costs such as project development, construction, capitalized interest, and advisory fees; loan terms are set at a rate comparable to Treasury yields of similar maturity, with repayment schedules that can be shaped to match the useful life of the financed asset and structured deferral during a grace period.

Beyond direct loans, OSC also runs Investment Fund Financing — including the Small Business Investment Company Critical Technologies Initiative (SBICCT), a partnership with the Small Business Administration — that extends leveraged debt to approved third-party fund managers rather than lending to an operating company directly. OSC's own fund-finance page describes approved funds accessing up to $250 million in debt through "Leveraged Licenses," with 19 approved funds projected to deploy more than $4 billion across upwards of 1,700 defense-industrial-base companies. That is a different exposure path than a direct OSC loan: a company could receive capital from an SBICCT-licensed fund without ever appearing in OSC's own direct-loan disclosures, so a fund-level connection to OSC is worth checking separately from a direct-loan connection.

The first confirmed OSC loan: MP Materials

OSC's first executed direct loan was a $150 million commitment to MP Materials, announced August 10, 2025, to add heavy rare-earth separation capability at MP Materials' existing processing facility in Mountain Pass, California, per the Department of War's own release. The announcement framed the loan explicitly around supply-chain security — reducing reliance on Chinese-controlled rare-earth processing — rather than around funding new research; MP Materials already operates the mine and processing facility, and the loan expands existing production capacity. This is the clearest real-world illustration of what the eligibility rules above actually select for: an operating company with existing revenue and a concrete industrial-capacity expansion project, not an early-stage technology bet.

What this means for a defense-sector researcher

An OSC loan is a capital-structure event, not a revenue event, and it should be read that way in a company's disclosures. A loan shows up on a balance sheet as debt with a repayment obligation, not as sales — the opposite of a production contract award, which is the kind of funded, revenue-generating milestone this site's defense budget guide and how-to-invest-in-defense-tech guide treat as the more directly financially meaningful signal. What an OSC loan does tell a researcher is that a company cleared a real underwriting bar — creditworthiness, a repayable commercial project, the required non-federal capital match — which is a different and generally later-stage signal than an SBIR/STTR award, and worth distinguishing from either a grant or a contract when reading a company's own materials.