Company lists · Data refreshed September 2026

Top 22 Api platform investors based in the United States

RevenueBase identified 56 company matches for api platform investors associated with the United States as of September 2026 and tracks 3,850 professional contacts across them, including 1,355 with verified work emails. San Francisco is the largest hub.

This list covers company matches for api platform investors associated with the United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 27, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Sep 27, 2026 How this list was built
56Companies
3,850Contacts tracked
1,355Verified emails
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The 22 largest api platform investors based in the United States

Ranked by team size
Top 22 of 56 company matches for api platform investors based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 27, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchSan Francisco, CA, United StatesHQ recorded Sep 27, 2026501-1,0002,269 contacts →

Exact match

“Postman is the world’s leading API platform.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
2Exact matchSan Francisco, CA, United StatesHQ recorded Sep 27, 20261,001-5,000892 contacts →

Exact match

“No AI without APIs.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
3Exact matchBoston, MA, United StatesHQ recorded Sep 27, 202651-20065 contacts →

Exact match

“Tiugo Technologies is assembling a unique collection of world-class, API-first developer platforms focused on content and data management, virtual collaboration and customer…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
4Exact matchAustin, TX, United StatesHQ recorded Sep 27, 202611-5062 contacts →

Exact match

“At last, API docs you can be proud of!”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
5Exact matchSan Jose, CA, United StatesHQ recorded Sep 27, 2026n/a41 contacts →

Exact match

“Layer7 API Security To get maximum value from data, your enterprise needs to seamlessly connect with mobile apps, cloud services and the Internet of Things.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
6Exact matchWilmington, DE, United StatesHQ recorded Sep 27, 202611-5022 contacts →

Exact match

“Treblle is an API Intelligence platform that empowers companies looking to connect the dots between APIs and their business development.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
7Exact matchSan Francisco, CA, United StatesHQ recorded Sep 27, 202611-5017 contacts →

Exact match

“apiplatform.io is a trusted digital economy, API strategy & lifecycle partner advancing innovation & productivity.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
8Exact matchSeattle, WA, United StatesHQ recorded Sep 27, 202611-5015 contacts →

Exact match

“Zuplo is fully-managed API Management, MCP and AI Gateway platform designed for developers.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
9Exact matchSan Francisco, DE, United StatesHQ recorded Sep 27, 2026201-50014 contacts →

Exact match

“Requestly API Client is a modern, developer-first platform for building, testing, and managing APIs your way, giving you full control- whether you prefer to stay local with Git…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
10Exact matchRemote, United StatesHQ recorded Sep 27, 202611-5014 contacts →

Exact match

“Discover, Connect And Manage APIs.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
11Exact matchNew York, NY, United StatesHQ recorded Sep 27, 202611-5012 contacts →

Exact match

“All investors deserve access to institutional-quality financial intelligence.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
12Exact matchNew York, NY, United StatesHQ recorded Sep 27, 202611-5010 contacts →

Exact match

“Monark is an API-infrastructure enabling retail brokerage firms and wealth management platforms to provide access to private market investments from within their native client…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
13Exact matchSan Francisco, United StatesHQ recorded Sep 27, 20261-1010 contacts →

Exact match

“Unkey is an open source API management platform that helps developers secure, manage, and scale their APIs.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
14Exact matchBeaverton, OR, United StatesHQ recorded Sep 27, 20261-1010 contacts →

Exact match

“With Truto, you can whip up any API integration fast using one simple API.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
15Exact matchLos Angeles, United StatesHQ recorded Sep 27, 202611-509 contacts →

Exact match

“Dizraptor provides access to investments in the world's top private companies at the pre-IPO and mid-stage.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
16Exact matchDover, DE, United StatesHQ recorded Sep 27, 20261-104 contacts →

Exact match

“Tailcall's API Platform dramatically improves developer productivity, reduces infrastructural complexity, save costs, and is engineered to work for scale.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
17Exact matchHerndon, VA, United StatesHQ recorded Sep 27, 202611-504 contacts →

Exact match

“In an era where APIs are pivotal across industries and solutions, Revenium (formerly HyperCurrent) accelerates digital product delivery, revenue generation, and ROI.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
18Exact matchSan Francisco, CA, United StatesHQ recorded Sep 27, 20261-103 contacts →

Exact match

“Using the Standard Library API and integration platform, companies can build and connect APIs without managing infrastructure.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
19Exact matchNorth Miami, FL, United StatesHQ recorded Sep 27, 202611-502 contacts →

Exact match

“Devprime is a platform engineering for developers to build better high-quality software for backend, event-driven APIs, and Microservices.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
20Exact matchSan Francisco, CA, United StatesHQ recorded Sep 27, 20261-101 contacts →

Exact match

“Reducing the time it takes to create a SaaS platform from months to minutes.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
21Exact matchDobbs Ferry, NY, United StatesHQ recorded Sep 27, 20261-101 contacts →

Exact match

“RepreZen API Studio is the first enterprise-class API design platform, built from the ground up to meet the demands of large-scale integration programs.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
22Exact matchDania Beach, FL, United StatesHQ recorded Sep 27, 20261-101 contacts →

Exact match

“FFB Investments is a financial institution that pools investor resources and leverages modern trading techniques such as automation and API driven trading.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase

Showing 22 of 56 api platform investors based in the United States

See the full list, filter by size, metro and specialty, and access 1,355 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Api platform investors based in the United States at a glance

As of Sep 27, 2026
35.2%Verified-email coverage
68.8Average contacts per company
11-50Median size (employees)
21.4%Largest-city concentration · San Francisco
Sep 27, 2026Page data refreshed

Companies by employee count

1-10
23
11-50
20
51-200
7
201-500
2
501-1,000
2
1,001-5,000
1
5,001-10,000
1

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 56 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies
Company records associated with the United States whose business descriptions match “api platform investors” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 1,355 professional contacts with verified work emails across the full matched dataset. 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 27, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “api platform investors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many api platform investors are there based in the United States?

RevenueBase identified 56 company matches for api platform investors associated with the United States as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Postman tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most api platform investors?

San Francisco leads with 12 company records, followed by New York (5) and Austin (3).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 1,355 professional contacts with verified work emails tracked across these 56 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 27, 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 SmartSearch, 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.