Company lists · Data refreshed September 2026

Top 25 Lead optimization companies based in the United States

Name: Lead optimization companies based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 1,856 companies tracked

RevenueBase identified 1,856 lead optimization companies headquartered in the United States as of September 2026 and tracks 20,251 professional contacts across them, including 4,466 with verified work emails. New York is the largest hub.

This list covers lead optimization 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 20, 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 20, 2026 86% judged on-target in blind review

1,856Companies

20,251Contacts tracked

4,466Verified emails

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The 25 largest lead optimization companies based in the United States

Ranked by team size

Top 25 of 1,856 lead optimization companies based in the United States, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to lead optimization 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	6sense	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 20, 2026	1,001-5,000	1,443 contacts →
	Indirect evidence “6sense is on a mission to revolutionize the way B2B organizations create revenue by predicting customers most likely to buy and recommending the best course of action to engage…” Source: RevenueBase Database · checked Sep 20, 2026
2	Data Axle	Partial evidence	Dallas, TX, United StatesHQ checked Sep 20, 2026	1,001-5,000	1,088 contacts →
	Partial evidence “Data Axle helps clients create a foundation of clean data, find new leads, develop winning strategies, design beautiful campaigns, and can handle all day-to-day execution needs” Source: RevenueBase Database · checked Sep 20, 2026
3	Cience	Partial evidence	Miami, FL, United StatesHQ checked Sep 20, 2026	201-500	1,068 contacts →
	Partial evidence “CIENCE Technologies, Inc, founded in 2015 and headquartered in Denver, CO, is a pioneering global company in lead generation software and services, committed to transforming the…” Source: RevenueBase Database · checked Sep 20, 2026
4	Manlitics B2B Ites	Indirect evidence	New York, United StatesHQ checked Sep 20, 2026	501-1,000	750 contacts →
	Indirect evidence “In an ERA of new and emerging digital mediums, we align our core expertise of today’s ever-changing technology with a clear understanding of traditional marketing methods without…” Source: RevenueBase Database · checked Sep 20, 2026
5	Flexisales INC	Partial evidence	Las Vegas, NV, United StatesHQ checked Sep 20, 2026	201-500	697 contacts →
	Partial evidence “Flexisales, is a global frontrunner in B2B Lead & Demand Generation and Data Services, serving technology companies & agencies worldwide.” Source: RevenueBase Database · checked Sep 20, 2026
6	Digitalzone	Partial evidence	New York, NY, United StatesHQ checked Sep 20, 2026	501-1,000	558 contacts →
	Partial evidence “Digitalzone is a global marketing and demand gen company dedicated to delivering compliant leads, exceptional customer satisfaction, and an end-to-end approach.” Source: RevenueBase Database · checked Sep 20, 2026
7	Movingdneedle Pvt. LTD	Partial evidence	Sterling Heights, MI, United StatesHQ checked Sep 20, 2026	51-200	528 contacts →
	Partial evidence “movingDneedle is a Business to Business Sales Lead Generation Company that provides fast and scalable, sales qualified leads through its unique Personalized Email Marketing…” Source: RevenueBase Database · checked Sep 20, 2026
8	Callbox INC	Partial evidence	Encino, CA, United StatesHQ checked Sep 20, 2026	201-500	499 contacts →
	Partial evidence “Callbox is the #1 trusted lead generation services and AI-Powered Growth Strategy Partner by enterprise and scaling businesses in the USA, Canada, Asia Pacific, Latin America…” Source: RevenueBase Database · checked Sep 20, 2026
9	Saleshive	Indirect evidence	Denver, CO, United StatesHQ checked Sep 20, 2026	51-200	455 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 20, 2026
10	Marketone International	Indirect evidence	Waltham, MA, United StatesHQ checked Sep 20, 2026	201-500	431 contacts →
	Indirect evidence “MarketOne is a global demand generation agency.” Source: RevenueBase Database · checked Sep 20, 2026
11	Callrail	Partial evidence	Atlanta, GA, United StatesHQ checked Sep 20, 2026	201-500	332 contacts →
	Partial evidence “CallRail is the lead engagement platform that makes it easy for businesses to attract more leads, convert more customers, and optimize their marketing.” Source: RevenueBase Database · checked Sep 20, 2026
12	Leandata	Indirect evidence	Santa Clara, CA, United StatesHQ checked Sep 20, 2026	51-200	194 contacts →
	Indirect evidence “Help your teams align to your customer’s journey by uniting your CRM data, signals, and tools from the first buying signal to closed-won and beyond.” Source: RevenueBase Database · checked Sep 20, 2026
13	Valasys Media	Indirect evidence	Jersey City, NJ, United StatesHQ checked Sep 20, 2026	51-200	145 contacts →
	Indirect evidence “Valasys Media, a globally acclaimed company.” Source: RevenueBase Database · checked Sep 20, 2026
14	seamless.ai	Partial evidence	Columbus, OH, United StatesHQ checked Sep 20, 2026	201-500	128 contacts →
	Partial evidence “Seamless.ai delivers the world's best sales leads.” Source: RevenueBase Database · checked Sep 20, 2026
15	Boom Demand	Partial evidence	Lehi, UT, United StatesHQ checked Sep 20, 2026	1,001-5,000	124 contacts →
	Partial evidence “Boom Demand is an Lead Generation & Customer Acquisition powerhouse that will help you increase revenue and grow your customer base.” Source: RevenueBase Database · checked Sep 20, 2026
16	First Connect Digital	Indirect evidence	Newark, NJ, United StatesHQ checked Sep 20, 2026	51-200	123 contacts →
	Indirect evidence “First Connect Digital (FCD) is a collective of seasoned marketing and business professionals with decades of leadership experience with leading global media companies and brands.” Source: RevenueBase Database · checked Sep 20, 2026
17	Myadvice	Indirect evidence	Lehi, UT, United StatesHQ checked Sep 20, 2026	51-200	117 contacts →
	Indirect evidence “MyAdvice offers an AI-powered growth system that reduces cost and effort while driving revenue and producing valuable insights.” Source: RevenueBase Database · checked Sep 20, 2026
18	Databees	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 20, 2026	201-500	114 contacts →
	Partial evidence “DataBees empowers sales and marketing teams all around the world by providing high quality, verified lead data.” Source: RevenueBase Database · checked Sep 20, 2026
19	Launch Leads	Partial evidence	Salt Lake City, UT, United StatesHQ checked Sep 20, 2026	51-200	112 contacts →
	Partial evidence “Why Launch Leads?” Source: RevenueBase Database · checked Sep 20, 2026
20	Revcloud	Indirect evidence	Newport Beach, CA, United StatesHQ checked Sep 20, 2026	11-50	109 contacts →
	Indirect evidence “Revcloud is helping businesses use data to grow and we match you with low cost global teams to push your business to the next level.” Source: RevenueBase Database · checked Sep 20, 2026
21	Leadque	Indirect evidence	Wilmington, DE, United StatesHQ checked Sep 20, 2026	51-200	102 contacts →
	Indirect evidence “We specialize in increasing a brand's growth by enhancing the accuracy and precision of marketing campaigns by using the best sales intelligence, strategies & scope for top of the…” Source: RevenueBase Database · checked Sep 20, 2026
22	3tec Solutions	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 20, 2026	51-200	92 contacts →
	Indirect evidence “At 3Tec Solutions, we are always by our client's side while they go from strength to strength in achieving their goals.” Source: RevenueBase Database · checked Sep 20, 2026
23	Pronexis	Partial evidence	Springville, UT, United StatesHQ checked Sep 20, 2026	51-200	91 contacts →
	Partial evidence “Pronexis is the top lead development platform in the home service industry.” Source: RevenueBase Database · checked Sep 20, 2026
24	Thinkdirect Marketing Group	Partial evidence	Largo, FL, United StatesHQ checked Sep 20, 2026	501-1,000	84 contacts →
	Partial evidence “ThinkDirect Marketing Group, Inc.(TDMG) is a Clearwater, Florida-based privately held company focused on cost-effective lead and sales generation for a wide-range of industries.” Source: RevenueBase Database · checked Sep 20, 2026
25	Rocketreach	Partial evidence	Brooklyn, United StatesHQ checked Sep 20, 2026	51-200	80 contacts →
	Partial evidence “RocketReach is an intuitive and easy-to-use lead intelligence and sales intelligence solution that is powered by the largest and most accurate contact database on this planet.” Source: RevenueBase Database · checked Sep 20, 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: lead optimization companies. 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 lead optimization companies.
Partial evidence: Its own public description names part of lead optimization companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name lead optimization companies. 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 1,856 lead optimization companies based in the United States

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Lead optimization companies based in the United States at a glance

As of Sep 20, 2026

22.1%Verified-email coverage

10.9Average contacts per company

1-10Median size (employees)

4.8%Largest-city concentration · New York

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

1,068

11-50

576

51-200

159

201-500

501-1,000

1,001-5,000

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 1,856 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 lead optimization 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 “lead optimization 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 lead optimization 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 lead optimization 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, 4,466 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 20, 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.

Lead optimization companies by metro

Lead optimization companies in New York89
Lead optimization companies in Los Angeles50
Lead optimization companies in Austin46
Lead optimization companies in Miami45
Lead optimization companies in Sheridan43
Lead optimization companies in San Francisco39
Lead optimization companies in Dallas35
Lead optimization companies in San Diego31
Lead optimization companies in Houston30
Lead optimization companies in Las Vegas29
Lead optimization companies in Chicago26
Lead optimization companies in Denver26

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 lead optimization 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 lead optimization companies are there based in the United States?

RevenueBase identified 1,856 lead optimization 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?

6sense, headquartered in San Francisco, tops this list with the largest team on record.

Which city has the most lead optimization companies?

New York leads with 89 headquartered companies, followed by Los Angeles (50) and Austin (46).

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 4,466 verified decision-maker contacts tracked across these 1,856 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 20, 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.