Company lists · Data refreshed September 2026

Top 25 Marketplace platform investors based in the United States

Name: Marketplace platform investors based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 2,641 companies tracked

RevenueBase identified 2,641 marketplace platform investors headquartered in the United States as of September 2026 and tracks 41,563 professional contacts across them, including 15,874 with verified work emails. New York is the largest hub.

This list covers marketplace platform investors headquartered in the 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 28, 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 28, 2026 86% judged on-target in blind review

2,641Companies

41,563Contacts tracked

15,874Verified emails

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The 25 largest marketplace platform investors based in the United States

Ranked by team size

Top 25 of 2,641 marketplace platform investors based in the United States, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to marketplace platform investors: 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Robinhood	Indirect evidence	Menlo Park, CA, United StatesHQ checked Sep 28, 2026	1,001-5,000	3,771 contacts →
	Indirect evidence “Trade.” Source: RevenueBase Database · checked Sep 28, 2026
2	RED Ventures	Indirect evidence	Fort Mill, SC, United StatesHQ checked Sep 28, 2026	1,001-5,000	2,166 contacts →
	Indirect evidence “Red Ventures is a global portfolio of high-growth companies, and a place where ambitious people come to build, grow, and scale businesses.” Source: RevenueBase Database · checked Sep 28, 2026
3	ACCEL	Indirect evidence	Palo Alto, CA, United StatesHQ checked Sep 28, 2026	n/a	981 contacts →
	Indirect evidence “Accel is a global venture capital firm that is the first partner to exceptional teams everywhere, from inception through all phases of private company growth.” Source: RevenueBase Database · checked Sep 28, 2026
4	Andreessen Horowitz	Indirect evidence	Menlo Park, CA, United StatesHQ checked Sep 28, 2026	201-500	932 contacts →
	Indirect evidence “Founded in 2009 by Marc Andreessen and Ben Horowitz, Andreessen Horowitz (known as "a16z") is a venture capital firm that backs bold entrepreneurs building the future through…” Source: RevenueBase Database · checked Sep 28, 2026
5	Clear Street	Strong evidence	New York, NY, United StatesHQ checked Sep 28, 2026	501-1,000	734 contacts →
	Strong evidence “Clear Street’s mission is to give every sophisticated investor access to every asset, in every market, through a unified platform built for speed, transparency and scale.” Source: RevenueBase Database · checked Sep 28, 2026
6	Insight Partners	Partial evidence	New York, NY, United StatesHQ checked Sep 28, 2026	201-500	623 contacts →
	Partial evidence “Insight Partners is a global software investor partnering with high-growth technology, software, and Internet startup and ScaleUp companies that are driving transformative change…” Source: RevenueBase Database · checked Sep 28, 2026
7	Lvlup Ventures	Indirect evidence	New York, NY, United StatesHQ checked Sep 28, 2026	1,001-5,000	610 contacts →
	Indirect evidence “LvlUp Ventures is a global venture capital firm investing in and accelerating early-stage & late-stage startups.” Source: RevenueBase Database · checked Sep 28, 2026
8	Primary Venture Partners	Indirect evidence	New York, NY, United StatesHQ checked Sep 28, 2026	51-200	545 contacts →
	Indirect evidence “Primary is the world's largest early stage VC firm, with a billion in assets under management and 50 full time employees.” Source: RevenueBase Database · checked Sep 28, 2026
9	PSG	Indirect evidence	Boston, MA, United StatesHQ checked Sep 28, 2026	51-200	513 contacts →
	Indirect evidence “PSG is a growth equity firm that partners with software and technology-enabled services companies to help them navigate transformational growth, capitalize on strategic…” Source: RevenueBase Database · checked Sep 28, 2026
10	The Riverside Company	Indirect evidence	New York City, NY, United StatesHQ checked Sep 28, 2026	201-500	447 contacts →
	Indirect evidence “The Riverside Company is a global investment firm focused on being one of the leading private capital options for business owners and employees at the smaller end of the middle…” Source: RevenueBase Database · checked Sep 28, 2026
11	Peak6	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	1,001-5,000	429 contacts →
	Indirect evidence “We're In The Business Of What Ought To Be The business of doing, creating, and building the world the way we see fit.” Source: RevenueBase Database · checked Sep 28, 2026
12	Bessemer Venture Partners	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 28, 2026	201-500	402 contacts →
	Indirect evidence “Bessemer Venture Partners helps entrepreneurs lay strong foundations from inception to build long-standing companies.” Source: RevenueBase Database · checked Sep 28, 2026
13	Sequoia Capital	Indirect evidence	Menlo Park, CA, United StatesHQ checked Sep 28, 2026	51-200	388 contacts →
	Indirect evidence “Sequoia helps daring founders build legendary companies from idea to IPO and beyond.” Source: RevenueBase Database · checked Sep 28, 2026
14	Stage 2 Capital	Indirect evidence	United StatesHQ checked Sep 28, 2026	n/a	354 contacts →
	Indirect evidence “Stage 2 Capital is a venture capital firm that invests in early stage B2B software companies and sits shoulder to shoulder with leadership teams to operationalize sustainable…” Source: RevenueBase Database · checked Sep 28, 2026
15	AMG	Indirect evidence	West Palm Beach, FL, United StatesHQ checked Sep 28, 2026	201-500	297 contacts →
	Indirect evidence “AMG is a leading partner to independent investment management firms globally.” Source: RevenueBase Database · checked Sep 28, 2026
16	York IE	Partial evidence	Manchester, NH, United StatesHQ checked Sep 28, 2026	201-500	292 contacts →
	Partial evidence “York IE® is an investment and operating firm that combines a family of funds with a hands-on operating platform to build and back software companies.” Source: RevenueBase Database · checked Sep 28, 2026
17	Republic	Indirect evidence	New York, CO, United StatesHQ checked Sep 28, 2026	201-500	279 contacts →
	Indirect evidence “Republic is a financial technology firm specializing in private market investment services.” Source: RevenueBase Database · checked Sep 28, 2026
18	Tiger Global	Indirect evidence	New York, NY, United StatesHQ checked Sep 28, 2026	51-200	275 contacts →
	Indirect evidence “Tiger Global is a research-driven investment firm pursuing a long-term approach to partnering with high-quality, innovative companies across different stages of their lifecycle.” Source: RevenueBase Database · checked Sep 28, 2026
19	Fundrise	Indirect evidence	Washington, DC, United StatesHQ checked Sep 28, 2026	201-500	254 contacts →
	Indirect evidence “For almost a century, regulatory barriers made it difficult for individuals to invest in private markets, giving billion-dollar institutions preferred access.” Source: RevenueBase Database · checked Sep 28, 2026
20	Coatue Management	Partial evidence	New York, NY, United StatesHQ checked Sep 28, 2026	51-200	239 contacts →
	Partial evidence “Building on our heritage in public markets investing, Coatue’s lifecycle investment platform has expanded across public and private markets over the past 25+ years.” Source: RevenueBase Database · checked Sep 28, 2026
21	Accel-Kkr	Indirect evidence	Menlo Park, CA, United StatesHQ checked Sep 28, 2026	51-200	236 contacts →
	Indirect evidence “Accel-KKR is a technology-focused investment firm with $23 billion in capital commitments.” Source: RevenueBase Database · checked Sep 28, 2026
22	Francisco Partners	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 28, 2026	51-200	215 contacts →
	Indirect evidence “Francisco Partners is a leading global investment firm that specializes in partnering with technology and technology-enabled businesses.” Source: RevenueBase Database · checked Sep 28, 2026
23	Norwest	Indirect evidence	Menlo Park, CA, United StatesHQ checked Sep 28, 2026	51-200	212 contacts →
	Indirect evidence “Norwest is a leading venture and growth equity investment firm that works side-by-side with the world’s top entrepreneurs, empowering them throughout their personal journey of…” Source: RevenueBase Database · checked Sep 28, 2026
24	777 Partners	Partial evidence	Miami, FL, United StatesHQ checked Sep 28, 2026	1,001-5,000	206 contacts →
	Partial evidence “Partners is a Miami-based, alternative investment platform that invests across a number of high-growth attractive verticals with a strong focus on financial services.” Source: RevenueBase Database · checked Sep 28, 2026
25	Kleiner Perkins	Indirect evidence	Menlo Park, CA, United StatesHQ checked Sep 28, 2026	n/a	205 contacts →
	Indirect evidence “For five decades, Kleiner Perkins has partnered with intrepid founders to build iconic companies that made history.” Source: RevenueBase Database · checked Sep 28, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: marketplace platform investors. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names marketplace platform investors.
Partial evidence: Its own public description names part of marketplace platform investors, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name marketplace platform investors. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 2,641 marketplace platform investors based in the United States

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Marketplace platform investors based in the United States at a glance

As of Sep 28, 2026

38.2%Verified-email coverage

15.7Average contacts per company

1-10Median size (employees)

15.7%Largest-city concentration · New York

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

1,832

11-50

633

51-200

125

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

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 2,641 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 marketplace platform investors, 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 the United States whose own description of what they do matches “marketplace platform investors”. 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 marketplace platform investors), 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 marketplace platform investors, and records with no verified work email. Companies headquartered outside United States 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, 15,874 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 28, 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.

Marketplace platform investors by metro

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 marketplace platform investors, 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 marketplace platform investors are there based in the United States?

RevenueBase identified 2,641 marketplace platform investors headquartered in the 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?

Robinhood, headquartered in Menlo Park, tops this list with the largest team on record.

Which city has the most marketplace platform investors?

New York leads with 415 headquartered companies, followed by San Francisco (210) and Los Angeles (115).

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 15,874 verified decision-maker contacts tracked across these 2,641 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 28, 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.