Published 30 March 2026 by eSourcingData
US federal contracting and UK public procurement share the same broad goal of buying fairly and transparently, but they differ in their rulebooks, structures, and supplier expectations. This guide compares the two so suppliers moving between the markets know what carries over and what does not.
US federal buying runs on the Federal Acquisition Regulation, a single detailed code applied across agencies, supplemented by agency-specific rules. UK public procurement operates under its own procurement legislation and guidance, which was reformed in recent years and follows a different structure and vocabulary.
The practical effect is that terminology does not map one to one. Concepts such as a solicitation, a contracting officer, and representations and certifications are distinctly American, while UK suppliers will be used to notices, contracting authorities, and selection questionnaires framed in their own way.
To sell to the US federal government you register in SAM.gov and obtain a Unique Entity ID, a prerequisite for award and payment. UK suppliers register on the relevant national procurement platform and are used to a supplier registration and pre-qualification style flow rather than a single federal system.
Both markets want to verify who you are before they buy, but the mechanics differ. A UK supplier expanding into US federal work should treat SAM.gov registration as a distinct, mandatory first step and not assume any UK credential carries across.
A defining feature of US federal contracting is the set-aside system, which reserves certain contracts for small businesses and for specific socio-economic categories such as the 8(a) program, service-disabled veteran-owned firms, women-owned firms, and HUBZone businesses.
The UK uses reserved contracts and lotting to support smaller suppliers, and encourages breaking large requirements into smaller lots, but it does not operate the same layered socio-economic certification system. Suppliers should not expect a direct UK equivalent to a specific US set-aside category.
Both markets evaluate on more than price, weighing quality, delivery, and, in the US, past performance heavily. US best-value trade-off evaluations explicitly balance technical merit against cost, while UK awards commonly use a most economically advantageous tender basis with published scoring criteria.
Past performance carries particular weight in US federal evaluations, sometimes as a distinct scored factor. UK suppliers accustomed to case studies and references will find the emphasis familiar, but should prepare US-relevant past performance rather than relying solely on UK contracts.
A supplier experienced in one market has a real head start, because the disciplines of reading a specification, answering to the criteria, and pricing competitively transfer well. What does not transfer is the assumption that the process is the same, which is where avoidable mistakes happen.
The safest approach when crossing the Atlantic is to relearn the process from first principles: the rulebook, the registration, the eligibility rules, and the evaluation basis. Treat your existing experience as transferable judgement, not as a shortcut around the new market's requirements.
Search both sides of the Atlantic
eSourcingData's sister platforms cover both markets: WinAContract US searches federal, state, and local opportunities with AI RFP writing, while the UK service tracks tenders at home. GovCon is the US government-contracting product line, with founding members open now.
Search US federal contractsDoes my UK procurement experience help in the US?
Yes, the core disciplines of reading a specification, answering the criteria, and pricing well transfer. What does not transfer is the process itself, which you should relearn from first principles.
Is there a UK equivalent of US set-asides?
Not directly. The UK uses reserved contracts and lotting to support smaller suppliers, but it does not operate the same layered socio-economic certification system as US federal set-asides.
Do I need to register separately for the US?
Yes. You must register in SAM.gov and obtain a Unique Entity ID to be awarded and paid federally. No UK registration carries across, so treat it as a distinct first step.
How different is the evaluation?
Both markets weigh quality alongside price, but US federal evaluations often score past performance as a distinct factor, so prepare US-relevant references rather than relying only on UK work.
Book a walkthrough on a live requirement, or request a tailored quote. We reply within one working day.
