Lookalikes · Data refreshed September 2026

13 Contactout lookalikes

Compiled by the RevenueBase Data Team Data refreshed Sep 5, 2026 35 matching companies

Looking for Contactout lookalikes, Contactout competitors or Contactout alternatives? The RevenueBase company graph holds 35 companies that do what Contactout does, matched at 85%+ measured description similarity (RevenueBase, September 2026). The 13 largest are ranked below by team size; across all 35 matches RevenueBase tracks 1,451 professional contacts, including 676 with verified work emails.

Similarity is measured on what companies actually do, from their business descriptions rather than industry codes, and is shown per row as a percentage. This page keeps only companies at 85%+ measured similarity to Contactout and ranks them by company size. Data current as of September 5, 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 Similarity shown on every row Refreshed Sep 5, 2026 Match quality audited by blind human judging

Reference company

Contactout

“At ContactOut, we pride ourselves on being the most accurate contact data intelligence tool out there.”

51-200Employees

90Contacts tracked

46Verified emails

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The 13 largest Contactout competitors and alternatives

Ranked by team size

Top 13 of 35 companies matching Contactout at 85%+ description similarity, ranked by team size. Similarity is each company's measured match to Contactout (100% = identical). Data refreshed Sep 5, 2026.
#	Company	HQ	Employees	Similarity	Verified emails
1	Cognism	London, GB	201-500	85%	363
2	LUSHA	Boston, US	201-500	86%	162
3	Discoverorg	Vancouver, US	501-1,000	85%	14
4	Rocketreach	New York, US	51-200	89%	59
5	Zintlr	Bengaluru, IN	51-200	85%	12
6	WIZA	New York, US	51-200	87%	6
7	Profinder	Helsinki, FI	11-50	85%	33
8	AI ARK	San Francisco, US	11-50	87%	5
9	Uplead	Covina, US	51-200	86%	11
10	Aeroleads	San Francisco, US	11-50	90%	3
11	swordfish.ai	US	11-50	88%	3
12	Getprospect	Sheridan, US	11-50	86%	3
13	Coldlytics	New York, US	1-10	86%	2

Showing the 13 largest of 35 similar companies

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How similarity works

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.
Matching: Companies are matched on what they actually do, as described in their own business descriptions, never on shared industry codes. The list keeps only matches at 85%+ measured similarity to Contactout, and match quality is audited by blind human judging. Read the full methodology.
Ranking: Team size, largest first, among the matched companies: companies are ordered by the number of professionals RevenueBase tracks at each one. Each row also shows its measured similarity to Contactout as a percentage.
Verification: Contact records re-verify on a rolling cadence rather than being scraped once and left to decay; each contact's own verification date is shown inside RevenueBase.
Refresh: This page's figures were pulled from the company graph on September 5, 2026. Lists refresh periodically as the graph is re-checked.

Frequently asked

What are Contactout lookalikes?

Contactout lookalikes are companies that closely resemble what Contactout does and sells, based on each company's own business description. The table above ranks the closest matches by company size, with each company's similarity to Contactout shown as a percentage.

What companies are similar to Contactout?

The largest companies similar to Contactout are Cognism, LUSHA, Discoverorg and Rocketreach. The table above shows the 13 largest of the 35 matched companies, with each row's similarity shown as a percentage.

How is similarity measured?

Similarity scores how closely a company's business, as described in its own words, matches Contactout's, shown as a percentage (100% = an identical description). The list keeps companies at 85% or above and ranks them by team size.

How do I get contacts at these companies?

A free RevenueBase account lets you run this exact search and work the top matches, verified emails and direct dials included. Upgrading unlocks the 676 verified emails and direct dials tracked across all 35 matched companies.

Who are Contactout's biggest competitors?

The largest Contactout competitors by measured business-description similarity are Cognism, LUSHA, Discoverorg and Rocketreach. Every company here does what Contactout does at 85%+ similarity, ranked by team size.

What are the best Contactout alternatives?

The closest Contactout alternatives are the companies whose own business descriptions match Contactout's most closely, shown above with each one's similarity as a percentage and ranked by team size.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 5, 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.