Company lists · Data refreshed September 2026

Top 25 Early-stage technology companies based in the United States

RevenueBase identified 986 early-stage technology companies headquartered in the United States as of September 2026 and tracks 13,333 professional contacts across them, including 3,750 with verified work emails. San Francisco is the largest hub.

This list covers early-stage technology companies 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 19, 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 19, 2026 86% judged on-target in blind review
986Companies
13,333Contacts tracked
3,750Verified emails
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The 25 largest early-stage technology companies based in the United States

Ranked by team size
Top 25 of 986 early-stage technology companies based in the United States, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to early-stage technology 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
1Indirect evidencePalo Alto, CA, United StatesHQ checked Sep 19, 2026n/a981 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 19, 2026
2Partial evidenceSan Francisco, CA, United StatesHQ checked Sep 19, 2026n/a321 contacts →

Partial evidence

“The Alchemist Accelerator is a venture-backed initiative focused on accelerating the development of seed-stage ventures that monetize from enterprises (not consumers).”

Source: RevenueBase Database · checked Sep 19, 2026
3Partial evidenceMenlo Park, CA, United StatesHQ checked Sep 19, 202651-200277 contacts →

Partial evidence

“New Enterprise Associates, Inc.(NEA) is a global venture capital firm focused on helping entrepreneurs build transformational businesses across multiple stages, sectors and…”

Source: RevenueBase Database · checked Sep 19, 2026
4Partial evidenceSan Francisco Bay, MA, United StatesHQ checked Sep 19, 202651-200276 contacts →

Partial evidence

“GV supports innovative founders across multiple stages and sectors, from artificial intelligence and life sciences to consumer platforms, enterprise software, and frontier…”

Source: RevenueBase Database · checked Sep 19, 2026
5Partial evidenceBoston, MA, United StatesHQ checked Sep 19, 202651-200211 contacts →

Partial evidence

“Battery invests in potentially cutting-edge, category-defining businesses in markets including application software, IT infrastructure technologies, consumer-internet and mobile…”

Source: RevenueBase Database · checked Sep 19, 2026
6Indirect evidenceMenlo Park, CA, United StatesHQ checked Sep 19, 2026n/a205 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 19, 2026
7Indirect evidenceMenlo Park, CA, United StatesHQ checked Sep 19, 202651-200205 contacts →

Indirect evidence

“DFJ is a venture capital firm that partners with extraordinary entrepreneurs who are changing the world.”

Source: RevenueBase Database · checked Sep 19, 2026
8Strong evidenceBoston, MA, United StatesHQ checked Sep 19, 202651-200204 contacts →

Strong evidence

“Aeturnum is a global software development firm specializing in early stage technology products and companies.”

Source: RevenueBase Database · checked Sep 19, 2026
9Partial evidenceSan Francisco, PA, United StatesHQ checked Sep 19, 2026n/a199 contacts →

Partial evidence

“First Round is a venture capital firm that works with founders exclusively at the earliest stages of company building, often when all they have is an “imagine if.” We fill in…”

Source: RevenueBase Database · checked Sep 19, 2026
10Strong evidenceNew York, United StatesHQ checked Sep 19, 2026n/a169 contacts →

Strong evidence

“ff Venture Capital (ffVC) is focused on investing in early-stage technology and technology-enabled companies, and has been since 2008.”

Source: RevenueBase Database · checked Sep 19, 2026
11Indirect evidenceAustin, CA, United StatesHQ checked Sep 19, 2026n/a160 contacts →

Indirect evidence

“8VC is a venture capital fund based in Austin, Texas.”

Source: RevenueBase Database · checked Sep 19, 2026
12Indirect evidenceMenlo Park, CA, United StatesHQ checked Sep 19, 2026n/a157 contacts →

Indirect evidence

“We’re specialists in pre-seed and seed.”

Source: RevenueBase Database · checked Sep 19, 2026
13Partial evidencePalo Alto, United StatesHQ checked Sep 19, 202611-50133 contacts →

Partial evidence

“Sutter Hill Ventures has financed technology-based start-ups and assisted entrepreneurs in building market-leading companies since 1962.”

Source: RevenueBase Database · checked Sep 19, 2026
14Indirect evidenceSan Francisco, CA, United StatesHQ checked Sep 19, 202611-50116 contacts →

Indirect evidence

“Nexus Venture Partners is a venture capital firm that supports extraordinary founders in building product-first companies.”

Source: RevenueBase Database · checked Sep 19, 2026
15Indirect evidenceMenlo Park, CA, United StatesHQ checked Sep 19, 202651-200111 contacts →

Indirect evidence

“Greylock was founded in 1965, one of the few venture firms that predates Silicon Valley.”

Source: RevenueBase Database · checked Sep 19, 2026
16Partial evidenceBoston, MA, United StatesHQ checked Sep 19, 2026n/a109 contacts →

Partial evidence

“FA Technology Ventures is an independent, established venture capital firm.”

Source: RevenueBase Database · checked Sep 19, 2026
17Strong evidenceSan Francisco, CA, United StatesHQ checked Sep 19, 202611-50104 contacts →

Strong evidence

“Canaan is an early stage venture capital firm that invests in entrepreneurs with visionary ideas.”

Source: RevenueBase Database · checked Sep 19, 2026
18Strong evidencePalo Alto, CA, United StatesHQ checked Sep 19, 202611-50102 contacts →

Strong evidence

“DTC invests in determined early-stage founders who push the envelope on technology innovation for the enterprise, connecting them to the capital, expertise, and customers they…”

Source: RevenueBase Database · checked Sep 19, 2026
19Indirect evidenceSan Francisco, CA, United StatesHQ checked Sep 19, 202651-20097 contacts →

Indirect evidence

“The Band of Angels is Silicon Valley's oldest seed funding organization.”

Source: RevenueBase Database · checked Sep 19, 2026
20Indirect evidenceSan Francisco, CA, United StatesHQ checked Sep 19, 202611-5093 contacts →

Indirect evidence

“Since Redpoint Ventures has partnered with visionary founders to create new markets and redefine existing ones.”

Source: RevenueBase Database · checked Sep 19, 2026
21Partial evidenceBurlingame, CA, United StatesHQ checked Sep 19, 202611-5072 contacts →

Partial evidence

“Founded in 1996, Altos Ventures is a technology investment firm based in Silicon Valley.”

Source: RevenueBase Database · checked Sep 19, 2026
22Indirect evidenceFoster City, CA, United StatesHQ checked Sep 19, 202611-5069 contacts →

Indirect evidence

“Scale backs Founders who can go the distance.”

Source: RevenueBase Database · checked Sep 19, 2026
23Strong evidenceSan Francisco, CA, United StatesHQ checked Sep 19, 202611-5069 contacts →

Strong evidence

“CRV is a venture capital firm that invests in early-stage tech startups.”

Source: RevenueBase Database · checked Sep 19, 2026
24Partial evidenceMenlo Park, CA, United StatesHQ checked Sep 19, 202611-5068 contacts →

Partial evidence

“Riverwood Capital invests in high-growth companies in the technology and technology-enabled industries.”

Source: RevenueBase Database · checked Sep 19, 2026
25Partial evidencePalo Alto, CA, United StatesHQ checked Sep 19, 202611-5067 contacts →

Partial evidence

“True Ventures is a Silicon Valley venture capital firm that is first to believe in brilliant founders and invests in them at the earliest stages, when partnership matters most.”

Source: RevenueBase Database · checked Sep 19, 2026

Showing 25 of 986 early-stage technology companies based in the United States

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Early-stage technology companies based in the United States at a glance

As of Sep 19, 2026
28.1%Verified-email coverage
13.5Average contacts per company
1-10Median size (employees)
14.0%Largest-city concentration · San Francisco
Sep 19, 2026Page data refreshed

Companies by employee count

1-10
761
11-50
199
51-200
21
201-500
4
501-1,000
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 986 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 early-stage technology 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 the United States whose own description of what they do matches “early-stage technology 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 early-stage technology 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 early-stage technology companies, 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, 3,750 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 19, 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 early-stage technology 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 early-stage technology companies are there based in the United States?

RevenueBase identified 986 early-stage technology companies 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?

ACCEL, headquartered in Palo Alto, tops this list with the largest team on record.

Which city has the most early-stage technology companies?

San Francisco leads with 138 headquartered companies, followed by New York (115) and Palo Alto (47).

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 3,750 verified decision-maker contacts tracked across these 986 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 19, 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.