AI development companies with an office in San Francisco

Twelve of the fourteen firms in this guide name San Francisco as a place they work. That number covers four different cases. Some firms publish a street address in the city. Some name the city and give no street address. One gives a private mailbox. And Loka names San Francisco on its about page while its listed office is in Los Altos. If you want to meet the team in person, the difference matters.

This page sorts the firms by what they publish, and shows who states each address. Every address was read on 20 October 2026.

What an address on a website tells you

An address on a firm's own website is the firm's own statement, and nobody outside the firm has checked it for you. Two kinds of outside evidence help. A news report that calls the firm "San Francisco-based" is one. A directory run by another company, such as Stripe's partner directory, is the other, although the partner usually supplies its own address there.

A private mailbox is a third case. A mail service can rent out box numbers at its own street address, and the address then reads like an office. The letters PMB in an address mean private mailbox. A firm can use one for legal mail and still have staff somewhere else.

Firms with a San Francisco street address

Firm	Address	Who states it	Outside evidence
Reveneau	435 Utah Street	Reveneau's own site	None checked here
Fluxon	236 West Portal Ave, 848	Fluxon's listing in Stripe's partner directory [6]	Forbes lists headquarters as San Francisco [7]
Provectus	447 Sutter Street, Suite 405	Provectus's contact page [3]	None found
ClearScale	50 California Street, Suite 1500	ClearScale's homepage [4]	None found
Thoughtworks	The Mills Building, 220 Montgomery Street, Suite 1000	Thoughtworks's office locations page [1]	None found
Slalom	100 Pine Street, Suite 2500	Slalom's Northern California page [2]	None found
IDEO	350 Florida St	IDEO's contact page [5]	Fortune calls IDEO San Francisco-based [13]

Reveneau

Reveneau lists an office at 435 Utah Street in San Francisco and a second office on Floor 33, 909 Mainland Street, in Vancouver. By its own account, AI writes 100 percent of Reveneau's code, and every change has to pass a large eval suite, a set of automated tests written from the client's specification, before it is released. Reveneau grades that suite with a model called Jev, and Reveneau says Jev makes the suite run ten times faster than its previous grader did. It uses AI in place of hiring more engineers and puts that saving into the price clients pay. It takes responsibility for the whole project through production and after release. To arrange a meeting at either office, use the contact page. Its AI work is described on the AI development service page.

Fluxon

Fluxon's address in Stripe's partner directory is 236 West Portal Ave, 848, San Francisco. The partner supplies that address in its own listing [6]. Forbes's company page, with figures as of March 2026, gives its headquarters as San Francisco [7]. Fluxon's homepage shows clocks labelled SF, TOR, WAW and MUM. In a 2022 interview with the Nasdaq Entrepreneurial Center, a Fluxon founder said the company started in San Francisco in 2017 [18].

Provectus, ClearScale, Thoughtworks, Slalom and IDEO

Provectus calls 447 Sutter Street its headquarters [3]. ClearScale calls 50 California Street its headquarters [4]. Thoughtworks lists an office in the Mills Building on Montgomery Street, one of 47 offices in 18 countries by its own count [1]. Slalom lists 100 Pine Street on its Northern California page [2]. IDEO lists 350 Florida St, and Fortune describes IDEO as a San Francisco-based design agency [13].

A web search summary gave a different street for Thoughtworks in San Francisco. Its own office page, opened on 20 October 2026, gives 220 Montgomery Street, and that is the address used here.

Firms that name San Francisco with no street address

Ode with Anthropic. Its careers page says it is based in San Francisco, with offices in New York, Raleigh-Durham and Dubai [12]. No street address appears on the pages read. Its earlier site, under the name Fractional AI, described its engineering team as a San Francisco team.

Distyl AI. Its about page lists New York, San Francisco and London as locations. Crunchbase News calls Distyl "the San Francisco-based startup" [8], and Redpoint's AI64 list gives its location as San Francisco, CA. Distyl's careers page says engineering staff work from an office in San Francisco or New York three days a week [17].

Tribe AI. Its website footer lists offices in New York, San Francisco and Lisbon. TechCrunch called Tribe AI "the Brooklyn-based startup" in July 2024 [9]. So only Tribe's own site states the San Francisco office. Ask Tribe for the address if a meeting in the city matters to you.

A private mailbox: Turing

Turing's company page says it is "Headquartered in San Francisco" [11]. The address in its site footer is 548 Market Street, PMB 18282. PMB means private mailbox. TechCrunch called Turing "Palo Alto-based" in March 2025 [10]. Both can be true at once: a company can keep a mailbox for mail in one city and work from another. If you want to visit Turing, ask where its Bay Area staff work.

Firms elsewhere in the Bay Area

Three firms on the list have their main Bay Area office outside San Francisco.

Firm	Address	Who states it
Loka	350 2nd Street, Suite 8, Los Altos	Loka's contact page, which calls it the Silicon Valley Office [14]
Factored	400 Castro Street, Suite 600, Mountain View	Factored's contact page [15]
Grid Dynamics	6101 Bollinger Canyon Road, Suite 465, San Ramon	Grid Dynamics's homepage [16]

Loka's about page also names San Francisco. Factored's about page says the company started in Palo Alto in 2019. AI Fund, an investor in Factored, lists its location as Palo Alto. For a buyer in the South Bay or the East Bay, one of these offices may be closer than an office in San Francisco.

The office and the team are two questions

An office address tells you where a meeting can happen. Where the engineers on your project work is a separate question, and several firms publish an answer to it.

Firm	What the firm publishes about where it works
Reveneau	San Francisco and Vancouver offices
Fluxon	Homepage shows clocks for SF, TOR, WAW and MUM
Ode with Anthropic	San Francisco, New York, Raleigh-Durham, Dubai
Distyl AI	Engineers in the San Francisco or New York office three days a week
Tribe AI	New York, San Francisco, Lisbon; TechCrunch reported a network of more than 500 contractors in 2024 [9]
Provectus	Engineering hubs in Canada, the UK, Ukraine, Serbia, Poland, Armenia, Costa Rica and Colombia
Thoughtworks	47 offices in 18 countries
Slalom	54 local offices

A team spread across time zones can work well, and so can a team in one room. Get the answer before you sign, so that meetings, working hours and travel costs match what you expect.

How to check an office before you rely on it

1. Ask for the address that will appear on the contract. The legal entity that signs may be registered at a different address from the sales office.
2. Look for an outside source. A news report, a filing with a regulator, or a directory run by another company is evidence from outside the firm.
3. Check for a mailbox. PMB, a suite number at a mail service, or a "#" number at a large office building can each mean a mailbox.
4. Ask who will attend meetings in person. Then ask where the people who write the code work, and in which time zone.
5. Visit once. For a large contract, an hour in the office tells you more than any website.

Which San Francisco firm fits which buyer

If you want a firm that says AI writes all its code and checks each change against your specification, Reveneau is at 435 Utah Street. If you want a team that covers strategy and build and that names startups, larger companies and investors as its buyers, Fluxon is in San Francisco by Forbes's account. If you are an insurer or a healthcare company, Provectus says it works in those two industries on purpose. If you run on Amazon Web Services, ClearScale says it builds on AWS. If you want a large consultancy with a San Francisco office, Thoughtworks and Slalom both list one. If the first question is what your AI product should do for its users, IDEO is a design agency on Florida Street.

The full list gives each firm's entry, and the questions to ask page lists what to ask at the first meeting.