Company lists · Data refreshed September 2026

Top 22 Platform engineering tools companies based in San Francisco, United States

RevenueBase identified 41 platform engineering tools companies headquartered in San Francisco, United States as of September 2026 and tracks 11,485 professional contacts across them, including 4,584 with verified work emails and 3,609 with mobile numbers. San Francisco is the largest hub.

This list covers platform engineering tools companies headquartered in San Francisco, 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 13, 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 13, 2026 86% judged on-target in blind review
41Companies
11,485Contacts tracked
4,584Verified emails
3,609Mobile numbers
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The 22 largest platform engineering tools companies based in San Francisco, United States

Ranked by team size
Top 22 of 41 platform engineering tools companies based in San Francisco, United States, ranked by team size, largest first. Data refreshed Sep 13, 2026. RevenueBase Smart Search rates how each company's information relates to platform engineering tools 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 evidenceSan Francisco, CA, United StatesHQ checked Sep 13, 20261,001-5,0003,168 contacts →

Partial evidence

“GitLab is the Intelligent Orchestration Platform where software teams and their AI agents stay in flow to amplify their capacity for innovation.”

Source: RevenueBase Database · checked Sep 13, 2026
2Indirect evidenceSan Francisco, CA, United StatesHQ checked Sep 13, 2026501-1,0001,402 contacts →

Indirect evidence

“Harness is a rapidly growing startup that is disrupting the software delivery market.”

Source: RevenueBase Database · checked Sep 13, 2026
3Indirect evidenceSan Francisco, CA, United StatesHQ checked Sep 13, 2026501-1,000900 contacts →

Indirect evidence

“At Docker, we simplify the lives of developers who are making world-changing apps.”

Source: RevenueBase Database · checked Sep 13, 2026
4Indirect evidenceSan Francisco, CA, United StatesHQ checked Sep 13, 2026201-500348 contacts →

Indirect evidence

“CircleCI is CI/CD built to accelerate code delivery with limitless scale and speed.”

Source: RevenueBase Database · checked Sep 13, 2026
5Indirect evidenceSan Francisco, CA, United StatesHQ checked Sep 13, 20261,001-5,000216 contacts →

Indirect evidence

“VMware Tanzu helps you modernize your applications and infrastructure with a common goal: deliver better software to production, continuously.”

Source: RevenueBase Database · checked Sep 13, 2026
6Strong evidenceSan Francisco, CA, United StatesHQ checked Sep 13, 202651-200104 contacts →

Strong evidence

“Cortex is the Engineering Operations Platform that runs mission control for the AI software factory.”

Source: RevenueBase Database · checked Sep 13, 2026
7Indirect evidenceSan Francisco, CA, United StatesHQ checked Sep 13, 202651-20043 contacts →

Indirect evidence

“Salto reimagines the way enterprise systems are configured and managed.”

Source: RevenueBase Database · checked Sep 13, 2026
8Partial evidenceSan Francisco, CA, United StatesHQ checked Sep 13, 2026201-50041 contacts →

Partial evidence

“Microsoft acquired Xamarin, a leading platform provider for mobile app development, in February 2016 to be included in their broader portfolio.”

Source: RevenueBase Database · checked Sep 13, 2026
9Indirect evidenceSan Francisco, CA, United StatesHQ checked Sep 13, 202651-20030 contacts →

Indirect evidence

“Armory empowers software development organizations to accelerate their innovation and time-to-market while reducing risk to their customers’ experience.”

Source: RevenueBase Database · checked Sep 13, 2026
10Partial evidenceSan Francisco, CA, United StatesHQ checked Sep 13, 202651-20029 contacts →

Partial evidence

“Run engineering with real intelligence.”

Source: RevenueBase Database · checked Sep 13, 2026
11Partial evidenceSan Francisco, CA, United StatesHQ checked Sep 13, 202611-5019 contacts →

Partial evidence

platformOS is equipping agencies and developers to rapidly produce and run enterprise-quality applications.”

Source: RevenueBase Database · checked Sep 13, 2026
12Strong evidenceSan Francisco, CA, United StatesHQ checked Sep 13, 202611-5017 contacts →

Strong evidence

“Runloop provides the infrastructure platform for developers building the future of software engineering.”

Source: RevenueBase Database · checked Sep 13, 2026
13Partial evidenceSan Francisco, CA, United StatesHQ checked Sep 13, 202611-5014 contacts →

Partial evidence

“Nuon is a developer platform that lets you deploy into customer accounts in minutes, not months.”

Source: RevenueBase Database · checked Sep 13, 2026
14Partial evidenceSan Francisco, CA, United StatesHQ checked Sep 13, 202611-5012 contacts →

Partial evidence

“Brainboard is an AI driven platform to visually design and manage cloud infrastructure from end to end, collaboratively.”

Source: RevenueBase Database · checked Sep 13, 2026
15Indirect evidenceSan Francisco, CA, United StatesHQ checked Sep 13, 202611-5011 contacts →

Indirect evidence

“Stay focus on developing your business, developers focus on their code, we leads the Tech.”

Source: RevenueBase Database · checked Sep 13, 2026
16Indirect evidenceSan Francisco, United StatesHQ checked Sep 13, 20261-108 contacts →

Indirect evidence

“Ship trusted software faster.”

Source: RevenueBase Database · checked Sep 13, 2026
17Indirect evidenceSan Francisco, CA, United StatesHQ checked Sep 13, 202611-507 contacts →

Indirect evidence

“Loft Labs enables any organization to scale self-service access to Kubernetes from 10 to engineers.”

Source: RevenueBase Database · checked Sep 13, 2026
18Indirect evidenceSan Francisco, CA, United StatesHQ checked Sep 13, 202611-507 contacts →

Indirect evidence

“Kapstan helps developers instantly provision, deploy and manage complex cloud infra in their own cloud account.”

Source: RevenueBase Database · checked Sep 13, 2026
19Partial evidenceSan Francisco, United StatesHQ checked Sep 13, 20261-106 contacts →

Partial evidence

“TalentGenius is a platform company building the marketplace infrastructure for deployable AI solutions.”

Source: RevenueBase Database · checked Sep 13, 2026
20Partial evidenceSan Francisco, CA, United StatesHQ checked Sep 13, 20261-104 contacts →

Partial evidence

“Our DevOps platform simplifies cloud-native development and makes integrating open source software as easy and reliable as using commercial managed services.”

Source: RevenueBase Database · checked Sep 13, 2026
21Partial evidenceSan Francisco, CA, United StatesHQ checked Sep 13, 202651-2004 contacts →

Partial evidence

“Calm.io is a complete platform for automating DevOps in modern environments comprised of containers, clouds and microservices applications- Effortlessly deploy, manage and operate…”

Source: RevenueBase Database · checked Sep 13, 2026
22Partial evidenceSan Francisco, CA, United StatesHQ checked Sep 13, 20261-101 contacts →

Partial evidence

“Qleet is a next generation software delivery platform that automates the provisioning and scaling of compute infrastructure, configuration of runtime environments and continuous…”

Source: RevenueBase Database · checked Sep 13, 2026

Showing 22 of 41 platform engineering tools companies based in San Francisco, United States

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Platform engineering tools companies based in San Francisco, United States at a glance

As of Sep 13, 2026
39.9%Verified-email coverage
31.4%Mobile-number coverage
280.1Average contacts per company
11-50Median size (employees)
124.4%Largest-city concentration · San Francisco
Sep 13, 2026Page data refreshed

Companies by employee count

1-10
12
11-50
13
51-200
7
201-500
4
501-1,000
3
1,001-5,000
2

Freshness & accuracy

How recently the business emails were verified and the company information checked

Email last verified

Median 16.0d

Company record updated

Median 53.0d

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 platform engineering tools 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 San Francisco, United States whose own description of what they do matches “platform engineering tools 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 platform engineering tools 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 platform engineering tools companies, and records with no verified work email. Companies headquartered outside San Francisco 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, 4,584 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 13, 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.

Platform engineering tools companies by metro in the United States

  • Platform engineering tools companies in San Francisco51

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 platform engineering tools 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 platform engineering tools companies are there based in San Francisco, United States?

RevenueBase identified 41 platform engineering tools companies headquartered in San Francisco, 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?

Gitlab, headquartered in San Francisco, tops this list with the largest team on record.

Which city has the most platform engineering tools companies?

San Francisco leads with 51 headquartered companies, followed by New York (15) and Boston (10).

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 4,584 verified decision-maker contacts tracked across these 41 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 13, 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.