Company lists · Data refreshed September 2026

Top 13 Generative AI infrastructure software companies based in Seattle, United States

RevenueBase identified 36 generative AI infrastructure software companies headquartered in Seattle, United States as of September 2026 and tracks 919 professional contacts across them, including 402 with verified work emails. San Francisco is the largest hub.

This list covers generative AI infrastructure software companies headquartered in Seattle, United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 14, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 14, 2026 86% judged on-target in blind review
36Companies
919Contacts tracked
402Verified emails
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The 13 largest generative AI infrastructure software companies based in Seattle, United States

Ranked by team size
Top 13 of 36 generative AI infrastructure software companies based in Seattle, United States, ranked by team size, largest first. Data refreshed Sep 14, 2026. RevenueBase Smart Search rates how each company's information relates to generative AI infrastructure software companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceSeattle, WA, United StatesHQ checked Sep 14, 2026201-500550 contacts →

Partial evidence

“Trusted by 200+ enterprises, we are a full-stack AI technology partner that helps you build digital experiences of tomorrow by leveraging GenAI, Machine Learning, and AWS.”

Source: RevenueBase Database · checked Sep 14, 2026
2Partial evidenceSeattle, WA, United StatesHQ checked Sep 14, 202651-20094 contacts →

Partial evidence

“Phaidra deploys AI agents for AI factories.”

Source: RevenueBase Database · checked Sep 14, 2026
3Partial evidenceSeattle, WA, United StatesHQ checked Sep 14, 202611-5064 contacts →

Partial evidence

“Unify data, models, and compute with the fastest path to a production-ready AI system.”

Source: RevenueBase Database · checked Sep 14, 2026
4Partial evidenceSeattle, WA, United StatesHQ checked Sep 14, 202651-20043 contacts →

Partial evidence

“Few understand AI like we do.”

Source: RevenueBase Database · checked Sep 14, 2026
5Partial evidenceSeattle, WA, United StatesHQ checked Sep 14, 202611-5033 contacts →

Partial evidence

“WhyLabs enables teams to harness the power of AI with precision and control.”

Source: RevenueBase Database · checked Sep 14, 2026
6Indirect evidenceSeattle, WA, United StatesHQ checked Sep 14, 202611-5016 contacts →

Indirect evidence

“Acquired by Foundry in February 2026.”

Source: RevenueBase Database · checked Sep 14, 2026
7Partial evidenceSeattle, WA, United StatesHQ checked Sep 14, 202611-5013 contacts →

Partial evidence

“Firebrand is leading the Enterprise Gen AI revolution.”

Source: RevenueBase Database · checked Sep 14, 2026
8Partial evidenceSeattle, WA, United StatesHQ checked Sep 14, 202611-506 contacts →

Partial evidence

“We believe that: AI < AI + HUMAN We believe that the collaboration between people and AI will bring about prosperity for all.”

Source: RevenueBase Database · checked Sep 14, 2026
9Strong evidenceSeattle, WA, United StatesHQ checked Sep 14, 202611-505 contacts →

Strong evidence

“Flip-Tech builds frontier data infrastructure for advanced AI development.”

Source: RevenueBase Database · checked Sep 14, 2026
10Strong evidenceSeattle, WA, United StatesHQ checked Sep 14, 202611-504 contacts →

Strong evidence

“qAI37 is pioneering a novel software-driven approach to dramatically enhance the energy efficiency and scalability of demanding AI computations.”

Source: RevenueBase Database · checked Sep 14, 2026
11Partial evidenceSeattle, WA, United StatesHQ checked Sep 14, 20261-103 contacts →

Partial evidence

“Introducing Slipstream - the AI Live Producer.”

Source: RevenueBase Database · checked Sep 14, 2026
12Partial evidenceSeattle, WA, United StatesHQ checked Sep 14, 20261-102 contacts →

Partial evidence

“Positron Networks leverages AI to automate model development, fine-tuning, and usage.”

Source: RevenueBase Database · checked Sep 14, 2026
13Strong evidenceSeattle, WA, United StatesHQ checked Sep 14, 20261-101 contacts →

Strong evidence

“We’re among the world’s first AI-native creative companies, mixing human insight with generative AI to tackle the next generation of brand challenges.”

Source: RevenueBase Database · checked Sep 14, 2026

Showing 13 of 36 generative AI infrastructure software companies based in Seattle, United States

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Generative AI infrastructure software companies based in Seattle, United States at a glance

As of Sep 14, 2026
43.7%Verified-email coverage
25.5Average contacts per company
1-10Median size (employees)
944.4%Largest-city concentration · San Francisco
Sep 14, 2026Page data refreshed

Companies by employee count

1-10
22
11-50
9
51-200
4
201-500
1

Email recency for this list is measured across the whole United States list rather than for Seattle, so it is reported there. Company counts and contact totals on this page are exact for Seattle, over 36 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among generative AI infrastructure software companies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies
Companies headquartered in Seattle, United States whose own description of what they do matches “generative AI infrastructure software companies”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search
RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names generative AI infrastructure software companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude
Companies whose own description does not clearly place them among generative AI infrastructure software companies, and records with no verified work email. Companies headquartered outside Seattle are excluded even when they keep an office there.
Match quality
In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
Ranking
Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification
Every listed company carries at least one verified work email, 402 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh
This page's figures were pulled from the company graph on September 14, 2026. Lists refresh periodically as the graph is re-checked.
Corrections
Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names generative AI infrastructure software companies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many generative AI infrastructure software companies are there based in Seattle, United States?

RevenueBase identified 36 generative AI infrastructure software companies headquartered in Seattle, United States as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Leapfrog Technology, INC, headquartered in Seattle, tops this list with the largest team on record.

Which city has the most generative AI infrastructure software companies?

San Francisco leads with 340 headquartered companies, followed by New York (201) and Austin (81).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 402 verified decision-maker contacts tracked across these 36 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 14, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.