US market entry · UK to US · go-to-market guide
US market entry a go-to-market plan for UK B2B companies
The US is the UK's largest trading partner, worth 17.4% of total UK trade in the year to March 2026.
For a UK B2B company it is usually the biggest market you can sell into in English, and the one that punishes a vague plan fastest.
GTM Quest is a London GTM agency that builds pipeline for UK and US teams.
This guide covers what a market entry consultant does and what a GTM agency does, then the decisions in order: US ICP, first metros, entity and tax signposts, US email and privacy rules, dollar pricing, time zones, and what to run from London before you hire in the US.
Reviewed by Dan Keegan, GTM Quest · 16 October 2026 · 18 sources linked below
US market entry, in four movesfrom London test to US team
- 01Decide who and whereWEEKS 1 TO 4US ICP · FIRST METRO
- 02Make it AmericanWEEKS 3 TO 6DOLLAR PRICING · PROOF
- 03Test from LondonMONTHS 2 TO 6OUTBOUND · LINKEDIN · EVENTS
- 04Hire and incorporateWHEN DEALS REPEATFIRST US HIRE · ENTITY
UK exports to the US, year to Q1 2026 (DBT)£203.3bn

01/ the starting point
What US market entry means for a UK B2B company and why most of it is go-to-market
For a B2B company, US market entry is the work of finding which American buyers want what you sell, reaching them, closing them in dollars and serving them across an ocean.
The legal set-up matters, but it is rarely what decides success.
Pipeline does.
The opportunity is real and mostly services.
UK exports to the US were £203.3 billion in the four quarters to the end of Q1 2026, and £146.7 billion of that, or 72.2%, was services.
The largest category, which the ONS calls "other business services", was worth £61.3 billion.
Much of it is sold from the UK.
The same DBT factsheet shows that in 2023 74.1% of UK services exports to the US were delivered cross-border (Mode 1), with no one travelling.
That is the case for testing the US from London before you open an office.
The official UK guide is blunt about the catch: the US is a federal system, and you will need to treat each state as a separate entity with its own procedures and regulations.
That applies to tax, privacy law and, in practice, to how you pick your first market.
02/ before you start
Are you ready for the US? five checks before you spend
None of these needs a US entity or a US hire.
If you cannot answer them, a US budget will mostly buy you lessons.
01
A repeatable UK motion
You can say which segment buys, why it buys and how long it takes, from deals you have won without the founder in every meeting.
- ✓ Win rate by segment
- ✓ Typical sales cycle
- ✓ Who signs
02
Inbound US interest already
Look at your CRM, website analytics and LinkedIn followers.
US companies that already found you are your first evidence and your first list.
03
A product that works for US buyers
US date formats, dollar billing, US data hosting where buyers ask for it, and security reviews such as SOC 2 if your buyers expect them.
04
A named owner
One person who owns US pipeline, even part time.
Shared ownership across the UK sales team usually means nobody works US hours.
05
Customers who will vouch for you
US buyers ask for US references.
Two UK customers with US operations count for more than ten UK logos.
Not sure where you stand?
Try the GTM scorecard first.
03/ who to sell to
Rebuild your ICP for the US do not copy the UK one across
Your UK ideal customer profile is a starting hypothesis, not a US list.
Re-test each part of it against US buyers before you build a single campaign.
Company size. A US company with the same headcount often has a larger budget and a more specialised team.
A role that is one generalist in Manchester can be three people in Chicago.
Expect more stakeholders and a procurement or security step you did not see at home.
Titles. "Director" and "VP" mean different things in US companies.
Many US firms use VP for heads of function well below the C-suite, so a UK "head of" maps more often to a US director or VP.
Search on function and seniority together, not on the UK title.
Triggers. The best US accounts are the ones showing a reason to buy now: funding, a new leader in the buying role, hiring for the problem you solve, or expansion into a market you know.
This is where signal-based selling earns its keep, because it lets a small London team focus on the few hundred accounts that matter.
Proof. Write the US ICP from UK customers that also operate in the US and US companies already in your pipeline, then build the GTM strategy around it.
04/ where to start
Which states and metros first? pick by where your buyers cluster
The US is too big to launch everywhere.
Pick one metro, or one time zone, where your ICP is dense and your proof is strongest.
These are judgement calls for common B2B profiles, not rankings.
Who is your best-fit US buyer?
New York
Start in New York
The densest concentration of financial services, media and agency buyers, and the easiest time zone from London.
Many UK companies put their first US person here.
- ✓ Eastern time: five hours behind London most of the year
- ✓ Direct flights from London every day
- ✓ Expensive to hire in
See our page on New York GTM agencies.
Boston
Start in Boston
A strong cluster of life sciences, university spin-outs and B2B software, in the same time zone as New York.
- ✓ Eastern time
- ✓ Technical buyers who expect evidence
- ✓ Close enough to cover New York too
See Boston GTM agencies.
San Francisco Bay Area
Start in the Bay Area
Where many software buyers and investors are, but eight hours behind London most of the year.
Hard to cover from the UK without someone working late.
- ✓ Pacific time: little or no overlap with London office hours
- ✓ Very competitive for attention
- ✓ Strong for partnerships and investor proof
Texas
Start in Austin or Dallas
Large mid-market and enterprise base, and Central time is only an hour further than New York.
Often cheaper to hire in than either coast.
- ✓ Central time: six hours behind London most of the year
- ✓ Mid-market buyers in many sectors
- ✓ Good second base after New York
See Austin GTM agencies.
Follow your customers
Start where your customers already are
If UK customers have US teams, start in their cities.
An internal introduction from a happy customer beats any cold list.
- ✓ Map customer US offices first
- ✓ Ask for introductions before you prospect
- ✓ Land and expand inside known accounts
This is often the strongest first move for an ABM agency style account plan; see also our US ABM agency page.
If you will run US outreach from London, the time zone matters as much as the sector.
An Eastern or Central time start lets one team cover the US in the afternoon.
A West Coast start usually needs a US hire sooner.
05/ signposts, not advice
Entity, tax and visas what to ask, and where the official answers are
This is a list of questions to take to a US accountant and lawyer, with the official pages to read first.
It is not legal or tax advice.
The UK government says you will need tailored advice from a certified accountant or tax lawyer.
Our advice on sequence, not on law: do not let incorporation become the project.
A US company with no US meetings is a cost, not a market entry.
06/ outreach rules
US email, calling and privacy rules how they differ from PECR and UK GDPR
US rules on B2B outreach are not stricter than the UK in every respect, but they are different, and some carry large per-message penalties.
Summaries below link the regulator; check with counsel for your case.
UK GDPR still applies to data you process in the UK, including US contacts in your UK CRM.
Write one data policy that meets both sets of rules.
If you work with an outbound partner, ask how they handle CAN-SPAM, suppression and enrichment sources before you sign.
Our outbound agencies page lists what to check.
07/ pricing
Price in dollars, not converted pounds US list prices, US packaging
Set a US price list in dollars, with round numbers that make sense to a US buyer.
A price that reads as a currency conversion tells the buyer you are a UK company testing the water, and invites a discount conversation.
Do not just change the currency symbol.
Check what US competitors charge, how they package it (per seat, usage or platform fee) and what buyers expect included, such as onboarding.
Remember sales tax.
The UK guide notes that sales tax varies from state to state; price lists should say whether tax is included, and your billing system should be able to add it where it applies.

08/ time zones
Time zones and working hours how much of the US you can cover from London
The overlap is arithmetic from official UTC offsets, assuming both offices work 9am to 5.30pm local time.
It decides who can run US calls from London and who cannot.
Watch the clock-change weeks. The UK goes back to GMT on 25 October 2026; the US does not end daylight saving time until 1 November 2026.
For that week New York is four hours behind, not five.
In spring, US daylight saving time starts on the second Sunday of March and the UK changes on 28 March 2027, so the gap shrinks again for about two weeks.
Calendar tools handle this; people booking by hand often do not.
09/ who does what
What to run from London and what to hire locally the split that keeps cost down
Most of the go-to-market system can be built and run in London.
A few things need someone in the US.
Pick a function to compare.
→ Lists, signals and sequences belong in London. Calls to the West Coast need a US-based SDR or an outbound agency with US callers.
→ Close the first deals from London to learn the motion. Hire a US account executive when deals repeat and the founder becomes the bottleneck. A fractional sales team can bridge the gap.
The BLS figures are median annual wages for all US employers in each occupation, not a quote for your hire.
Benefits and employer payroll taxes are extra, and pay plans vary.
Our GTM salary guide covers pay for go-to-market roles in more detail.
10/ the sequence
A phased US market entry what shows you are ready for the next step
Each phase has a signal that tells you to move on.
Skipping a phase is how UK companies end up with a US office and no US pipeline.
Decide
The signal
You can name the US segment, first metro and three US-relevant customer proofs
The play
Rebuild the ICP for the US, set dollar pricing, write the US page and offer
Owner: Founder and UK leadership
Test from London
The signal
Meetings booked with ICP accounts at a steady rate for at least a quarter
The play
Signal-led outbound, LinkedIn content and ads aimed at one metro or time zone
Owner: UK team or a GTM agency
Close from London
The signal
Repeat wins in the same segment, with a sales cycle you can predict
The play
Founder-led closing with US travel; collect US references and case studies
Owner: Founder or UK sales leader
First US hire
The signal
Pipeline is waiting on someone in US hours, not on more leads
The play
Hire a US account executive or seller; incorporate if the hire needs it, on advice
Owner: Sales leader, with US advisers
Build the US team
The signal
The US hire is at quota and the motion runs without the founder
The play
Add SDRs, customer success and US marketing; extend to a second metro
Owner: US lead

11/ who to hire
Market entry consultant or GTM agency? different jobs, sometimes both
A market entry consultant answers whether and how to enter.
A GTM agency builds and runs the pipeline once you have decided.
Pick the question you need answered.
What do you need most right now?
Market entry consultant
Hire a market entry consultant
A market entry consultant researches market size, competitors, regulation and entry models, then recommends a plan.
Good ones also cover entity, tax and hiring with partner firms.
- ✓ Market sizing and competitor review
- ✓ Entry model: sell from UK, partner, subsidiary
- ✓ Regulatory and set-up checklist
Ask for a fixed scope and a fixed fee. Compare firms on our GTM consultant page.
GTM agency
Use a GTM agency
A GTM agency builds the US account list, writes the offer and runs outbound, LinkedIn and the CRM so you get meetings with US buyers.
This is the phase most market entry plans underfund.
- ✓ US ICP lists and signals
- ✓ Outbound and LinkedIn aimed at US buyers
- ✓ CRM and pipeline reporting
This is what GTM Quest does as a GTM agency. See also what a go-to-market agency is.
ABM agency
Use an ABM programme
If your US market is a few hundred named enterprises, account-based marketing beats volume outbound: research, tailored content and coordinated sales and marketing on each account.
- ✓ Named-account lists
- ✓ Tailored content and ads
- ✓ Sales and marketing working the same accounts
See US ABM agencies and our ABM agency page.
Fractional or outsourced sales
Add sales capacity
If meetings are coming in but nobody can take them in US hours, you need people, not strategy.
A fractional sales team or outsourced SDRs can cover the gap before a full-time US hire.
- ✓ US-hours coverage
- ✓ No permanent hire yet
- ✓ Hand-over plan to your first US employee
Many UK companies use both: a consultant for a few weeks to decide, then a GTM agency for months to prove it.
The mistake is spending the budget on the report and none on running the plan.
12/ due diligence
How to choose a US market entry partner questions and red flags
Ask
Questions for any consultant or agency
Good partners answer with named examples and specifics, not frameworks.
- ✓ Which UK companies have you helped into the US, and what happened next?
- ✓ Who on your team works US hours?
- ✓ How do you handle CAN-SPAM, opt-outs and enrichment data?
- ✓ What will we have after 90 days that we did not have before?
- ✓ When would you tell us to hire in the US instead of paying you?
Avoid
Red flags
Any one of these is a reason to slow down.
- ✓ Starts with incorporation and office space, not buyers
- ✓ Promises a number of meetings before seeing your ICP
- ✓ Sends from domains and tools you do not control
- ✓ No answer on US privacy and email rules
- ✓ A long fixed contract with no review point
Looking for "the best agencies for US market entry"?
We do not rank them here.
Start with the job you need done, then compare firms that do it: outbound agencies, US ABM agencies, or the US agencies in our directory.
13/ our service
How GTM Quest helps UK companies enter the US the pipeline system, run from London
We are not a legal or tax firm, and we do not set up US companies.
We build and run the go-to-market system that proves US demand: the US ICP and account lists, signal-led outbound built on Clay, LinkedIn content and ads for US buyers, and the CRM and RevOps to report it weekly.
We work from London across the afternoon overlap with Eastern and Central time, which suits Phases 1 and 2 above.
Everything lives in accounts you own, so when you make your first US hire they inherit a working system, not a spreadsheet.
If you need a broader answer first, a GTM consultant or a specialist market entry consultant is the right call, and we will say so.
If you are not sure, the 15-minute call below is the quickest way to find out.
15 minutes · video or phone
Book 15 minutes before you spend on the US
Tell us what you sell, who buys it in the UK and what you have tried in the US so far. We will tell you whether you need a market entry consultant, a GTM agency, a US hire or none of them yet, whether or not you work with us.
- 0115 minutes, video or phone
- 02An honest view on readiness
- 03A written next step after the call
- 04London based, working with UK and US teams
Pick a day that suits · live availability
14/ questions
US market entry FAQ
What UK founders and sales leaders ask before they sell in the US, answered with sources.
Researches whether and how to enter a market: size, competitors, regulation and entry model, then recommends a plan.
They advise; a GTM agency then builds the pipeline.
See consultant or agency.
Advice for a non-US company on entering the US: which segment and states first, how to sell, whether to incorporate, and which advisers you need.
For B2B firms most of the work after the decision is go-to-market.
It depends on the job: a market entry consultant to decide, a GTM agency or outbound agency to build pipeline, an ABM agency for named enterprise accounts.
Few firms publish prices, so we do not quote a range.
Ask for a fixed scope and fixed fee, and keep budget for running the plan, which usually costs more than the report.
Yes.
The FTC says the law makes no exception for business-to-business email, and each violating email can carry a penalty of up to $53,088.
It can, if you do business in California and meet a threshold, such as revenue over $26,625,000.
B2B contact data has been covered since the exemption expired at the end of 2022.
Where your best-fit buyers cluster, ideally in Eastern or Central time so London can cover it.
New York is the most common first base.
For prospecting, LinkedIn and early closing, yes, especially for Eastern and Central time.
In 2023, 74.1% of UK services exports to the US were delivered cross-border.
See London vs US hire.
The Visa Waiver Program covers business or tourism stays of 90 days or less with ESTA approval; employment is not permitted.
Check the State Department page for what counts as business.

Book 15 minutes · London · UK and US clients
Planning a US launch? Get a straight answer on where to start.
A 15-minute call, a written next step, and if it fits, the pipeline system that proves US demand from London.
16/ sources
Every source on this page
Each figure above links to one of these. All were opened and checked on 16 October 2026.
- Department for Business and Trade, United States: UK trade and investment factsheet (24 September 2026)assets.publishing.service.gov.uk
- Federal Trade Commission, CAN-SPAM Act: a compliance guide for businessftc.gov
- business.gov.uk (DBT), Exporting from the UK to the United Statesbusiness.gov.uk
- SelectUSA (US Department of Commerce), United Kingdom FDI fact sheet (August 2026)trade.gov
- US Small Business Administration, Choose a business structuresba.gov
- IRS, Instructions for Form 5472irs.gov
- IRS, United States income tax treaties A to Zirs.gov
- US Department of State, Visa Waiver Programtravel.state.gov
- business.gov.uk Business Academy, Gateway USAbusiness.gov.uk
- business.gov.uk (DBT), Export support for UK businessesbusiness.gov.uk
- California Attorney General, California Consumer Privacy Act (CCPA)oag.ca.gov
- California Privacy Protection Agency, Updated monetary thresholds in CCPAcppa.ca.gov
- IAPP, US State Privacy Legislation Tracker (updated September 2026)iapp.org
- Federal Communications Commission, Telemarketing and robocallsfcc.gov
- ICO, Guide to PECR: electronic mail marketingico.org.uk
- US Naval Observatory, US time zonesaa.usno.navy.mil
- GOV.UK, When do the clocks change?gov.uk
- NIST, Daylight saving timenist.gov