Houston, Denver or Pittsburgh? Best US Base for UK Cleantech

Most guidance on where to base a US cleantech business was written before the ground moved.

In December 2025 the Department of Energy renamed the National Renewable Energy Laboratory in Golden, Colorado. It is now the National Laboratory of the Rockies. In October 2025, reporting emerged that the Department had proposed cancelling $1.2 billion of funding for the Gulf Coast hydrogen hub.

Neither event ends clean energy investment in the United States. Both change what a UK company should weight when choosing a city.

The conclusion is that industrial demand and private capital now matter more than proximity to a federal programme. That points to different cities than it did two years ago.

What changed, and why it affects your city choice

The renaming of NREL was presented as a change of remit, not a rebrand.

The lab should “invest in the scientific capabilities that will restore American manufacturing, drive down costs, and help this country meet its soaring energy demand”. That was Assistant Secretary Audrey Robertson, in the Department of Energy’s announcement.

The Department framed the move as widening the lab’s focus beyond renewable sources toward applied energy research, affordability and security.

The hydrogen picture is less settled. Energy Capital reported in October 2025 that the DOE had proposed cutting $1.2 billion from the HyVelocity Gulf Coast hub. Roughly $22 million had already been drawn, and administrators had not received formal confirmation of the hub’s status at the time of reporting.

What this means in practice

For a UK company planning a US entry, the practical conclusion is to build the business case on customers rather than on grants.

Cities with heavy industrial energy demand look stronger under that test than cities whose cleantech identity rests on federal research funding. A customer who needs your product to cut operating costs will still need it after the next election. A grant programme may not survive one.

This theme runs wider than energy. We have written about it in five things more important than political headlines when expanding to the US. The employment side of the same shift is covered in our analysis of US employment law changes under the new administration.

Houston: the demand is industrial, and it is not going anywhere

Houston’s advantage is that its energy economy is a customer base, not a policy position.

The metro contains 26 Fortune 500 headquarters, 19 of them energy-related as of 2025, according to the Federal Reserve Bank of Dallas. Energy and mining account for 9.4% of metro employment, and the sector’s major employers include Exxon Mobil, Shell USA, Chevron, Halliburton and Baker Hughes.

Those companies buy emissions monitoring, electrification, carbon capture, grid software and industrial efficiency products. A UK cleantech selling into heavy industry has a denser pipeline in Houston than anywhere else in the country.

The practical advantages beyond the customer list

The Port of Houston is the largest US port by foreign tonnage and handles 12% of all US waterborne tonnage. For anyone shipping hardware, sensors or modular plant, that is a logistics advantage rather than a statistic.

Houston was also selected as the largest of the seven regional hydrogen hubs. Given the funding uncertainty above, treat that as an indicator of industrial concentration rather than a guaranteed revenue stream.

The caveat is cultural. Houston is an oil and gas town first, and a UK company arriving with climate-first positioning will do better framing its product around cost, reliability and compliance. The same technology sells; the pitch does not.

That reframing is harder than it sounds for a team used to European procurement language. Our guide to mastering US business culture covers the wider communication differences.

Employment rules in Texas

Texas has no state personal income tax, and its minimum wage matches the federal rate of $7.25, per the US Department of Labor.

There is no state pay transparency requirement for job adverts. Non-competes are governed by case law rather than a statutory earnings threshold, and our state-by-state non-compete guide explains the tests.

Employment is at-will, which changes termination practice compared with the UK, as set out in our at-will employment guide.

Of the three states covered here, Texas carries the lightest administrative load for a small employer.

Denver: deep expertise, with a federal question mark

Colorado’s clean energy cluster grew up around the national lab in Golden. The expertise in the region is real regardless of what the lab is now called.

The workforce question is more delicate than it was. The Colorado Sun reported in February 2026 that a further 134 people had been laid off from the Golden laboratory.

For a hiring company, that cuts both ways. A contracting federal employer means experienced researchers and engineers are available in a way they have not been for years. It also means the anchor institution is a less reliable source of partnership and co-funding than it was.

Denver still offers the broadest technical talent base of the three cities, spanning aerospace, quantum and energy. We covered the wider market in our tech talent hotspots guide.

Employment rules in Colorado

Colorado creates the most compliance work of the three states, and UK companies consistently underestimate it.

Every job posting must state the pay rate or range, describe benefits including healthcare, retirement and paid time off, and give application instructions with a good-faith deadline. State guidance confirms the rule captures remote roles that could be performed from Colorado, even when the advert excludes Colorado applicants. Penalties run from $500 to $10,000 per violation.

Non-competes require the employee to earn above $130,014 from 1 January 2026, per Epstein Becker Green. Colorado’s minimum wage is $15.16 per hour.

Our guide to US pay transparency laws covers how Colorado compares with the states that have followed it.

Pittsburgh: the least obvious choice, and the cheapest

Pittsburgh is the city on this list that UK companies almost never consider, and the case for it is stronger than its profile.

The Department of Energy’s National Energy Technology Laboratory is based in the Pittsburgh area. That gives the region a federal research presence focused on applied energy rather than renewables specifically. That focus now aligns more closely with current federal priorities than Golden’s historic remit did.

Carnegie Mellon supplies engineering and robotics talent, which suits cleantech companies whose product is closer to industrial automation than to power generation.

Why a mid-table market can be the right answer

Pittsburgh ranked 28th in CBRE’s Scoring Tech Talent 2026, improving three places. That is a mid-table position, and it is the point. A smaller market means less competition for the people you want, and offers that need not match Austin or Denver.

The region’s industrial history also means a workforce comfortable with heavy plant, materials and manufacturing environments. For hardware-led cleantech, that is more valuable than software density.

There is a retention argument too. In Pittsburgh a well-funded UK cleantech can be one of the more interesting employers in the city. In Denver it is one of many.

Employment rules in Pennsylvania

Pennsylvania’s minimum wage is $7.25 per hour, matching the federal rate.

The state has no pay transparency law requiring salary ranges in adverts, and no statutory earnings threshold governing non-competes. As in Texas and Georgia, the administrative burden on a small employer is light compared with Colorado.

Houston, Denver and Pittsburgh at a glance

How to test a city without committing capital to it

Cleantech expansion carries a specific risk. Sales cycles into industrial buyers are long, so it can take a year to learn whether a city delivers a pipeline.

Incorporating before you know that is expensive. A better sequence runs in three stages.

Place one commercial hire in your preferred city through an Employer of Record. That gives you a compliant US employee without incorporation, state registration or a payroll provider.

Give that hire three or four quarters, because industrial procurement does not move faster than that. Judge the city on qualified pipeline rather than closed revenue.

Then revisit the structure. Our guide to using an EOR for US market testing covers how companies run that first year. The EOR versus own entity decision explains when to change approach.

If US investment is part of the plan, the location decision also affects who will back you. Our US venture capital guide covers how international founders approach American investors.

Build the case on customers, not on programmes

The clearest lesson from the last year is that US federal energy support can change faster than a UK company’s expansion timeline.

A business case that depends on a specific grant, hub or lab partnership is exposed to decisions made in Washington with little notice. A business case built on industrial customers who need your product for cost or compliance reasons is not.

On that test, Houston is the strongest of the three for most UK cleantech companies. Pittsburgh is the most cost-efficient. Denver is the deepest on talent, while carrying the most policy uncertainty.

For a wider view of how US regions differ on market entry, see our comparison of East Coast, West Coast and Middle America strategies.

Talk to us before you commit to a city

We help UK and European cleantech companies hire in the US without setting up an entity. We also advise on which state fits the roles being recruited.

Get in touch with our team to talk it through.