Company lists · Data refreshed September 2026

Top 25 Growth marketing firms based in the United States

Name: Growth marketing firms based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 30, 2026 26,961 companies tracked

RevenueBase identified 26,961 growth marketing firms headquartered in the United States as of September 2026 and tracks 185,676 professional contacts across them, including 50,929 with verified work emails and 54,614 with mobile numbers. New York is the largest hub.

This list covers growth marketing firms 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 30, 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 30, 2026 86% judged on-target in blind review

26,961Companies

185,676Contacts tracked

50,929Verified emails

54,614Mobile numbers

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The 25 largest growth marketing firms based in the United States

Ranked by team size

Top 25 of 26,961 growth marketing firms based in the United States, ranked by team size, largest first. Data refreshed Sep 30, 2026. RevenueBase Smart Search rates how each company's information relates to growth marketing firms: 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	Zoominfo	Partial evidence	Vancouver, WA, United StatesHQ checked Sep 30, 2026	1,001-5,000	4,029 contacts →
	Partial evidence “ZoomInfo (NASDAQ: GTM) is the go-to-market platform that helps businesses find, acquire and grow their customers.” Source: RevenueBase Database · checked Sep 30, 2026
2	Kinesso	Strong evidence	New York, NY, United StatesHQ checked Sep 30, 2026	5,001-10,000	2,860 contacts →
	Strong evidence “KINESSO is the technology-driven performance marketing agency within Omnicom Media that provides actionable growth for both agency partners and clients.” Source: RevenueBase Database · checked Sep 30, 2026
3	Power Digital Marketing	Strong evidence	San Diego, CA, United StatesHQ checked Sep 30, 2026	501-1,000	1,570 contacts →
	Strong evidence “Power Digital is a growth marketing firm fueled by technology and driven by a talented team of consultative marketers, creatives, analysts and technologists.” Source: RevenueBase Database · checked Sep 30, 2026
4	Localiq	Strong evidence	New York, NY, United StatesHQ checked Sep 30, 2026	1,001-5,000	1,534 contacts →
	Strong evidence “Grow your business with digital marketing powered by AI and local expertise.” Source: RevenueBase Database · checked Sep 30, 2026
5	Demandscience	Indirect evidence	Boston, United StatesHQ checked Sep 30, 2026	1,001-5,000	1,087 contacts →
	Indirect evidence “With proprietary data and omni-channel activation like events, content, programmatic and chat, we cut through the noise to reach entire buyer groups, driving engagement and impact…” Source: RevenueBase Database · checked Sep 30, 2026
6	Scorpion	Indirect evidence	Draper, UT, United StatesHQ checked Sep 30, 2026	501-1,000	1,076 contacts →
	Indirect evidence “Scorpion is the leader in helping local businesses succeed by focusing on what truly matters-driving revenue.” Source: RevenueBase Database · checked Sep 30, 2026
7	Centerfield	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 30, 2026	1,001-5,000	1,063 contacts →
	Indirect evidence “Super-powered customer acquisition.” Source: RevenueBase Database · checked Sep 30, 2026
8	WEBFX	Strong evidence	Harrisburg, PA, United StatesHQ checked Sep 30, 2026	501-1,000	866 contacts →
	Strong evidence “We're here to be your digital marketing growth partner in the AI era.” Source: RevenueBase Database · checked Sep 30, 2026
9	NP Digital	Indirect evidence	San Diego, CA, United StatesHQ checked Sep 30, 2026	1,001-5,000	866 contacts →
	Indirect evidence “Neil Patel has been recognized by the Wall Street Journal, Forbes, and the United Nations, to name a few, as one of the most influential and successful marketers and entrepreneurs…” Source: RevenueBase Database · checked Sep 30, 2026
10	SEO INC	Indirect evidence	Carlsbad, CA, United StatesHQ checked Sep 30, 2026	n/a	825 contacts →
	Indirect evidence “Since its inception in 1997, SEO Inc.” Source: RevenueBase Database · checked Sep 30, 2026
11	Sbi, The Growth Advisory	Partial evidence	Wyckoff, NJ, United StatesHQ checked Sep 30, 2026	n/a	782 contacts →
	Partial evidence “Driven by insights and delivered from experience, SBI helps clients grow their revenue, margin, and enterprise value in ways never before possible.” Source: RevenueBase Database · checked Sep 30, 2026
12	Abstrakt Marketing Group	Partial evidence	St. Louis, MO, United StatesHQ checked Sep 30, 2026	501-1,000	724 contacts →
	Partial evidence “We book the qualified meetings that fill your pipeline for any B2B company ready to grow.” Source: RevenueBase Database · checked Sep 30, 2026
13	Digitalzone	Partial evidence	New York, NY, United StatesHQ checked Sep 30, 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 30, 2026
14	Iquanti	Partial evidence	Jersey City, NJ, United StatesHQ checked Sep 30, 2026	501-1,000	538 contacts →
	Partial evidence “iQuanti was founded to deliver on the promise of high-performance digital marketing, combining deep analytics, proprietary technology, and a results-driven approach.” Source: RevenueBase Database · checked Sep 30, 2026
15	Tombras	Indirect evidence	Knoxville, TN, United StatesHQ checked Sep 30, 2026	201-500	496 contacts →
	Indirect evidence “Tombras is a 450+ person, full-service agency with a digital mindset.” Source: RevenueBase Database · checked Sep 30, 2026
16	Amsive	Partial evidence	New York, NY, United StatesHQ checked Sep 30, 2026	501-1,000	488 contacts →
	Partial evidence “Amsive is a data-driven performance marketing agency that enhances marketing ROI through innovative customer acquisition and engagement solutions.” Source: RevenueBase Database · checked Sep 30, 2026
17	Machintel	Indirect evidence	La Jolla, CA, United StatesHQ checked Sep 30, 2026	201-500	445 contacts →
	Indirect evidence “Machintel is dedicated to delivering transformative and affordable go-to-market solutions, ensuring a strong return on investment for brands, agencies, tech platforms, and…” Source: RevenueBase Database · checked Sep 30, 2026
18	Mspark	Partial evidence	Helena, AL, United StatesHQ checked Sep 30, 2026	201-500	442 contacts →
	Partial evidence “Mspark is a results-driven marketing partner built for accountability.” Source: RevenueBase Database · checked Sep 30, 2026
19	Icrossing	Partial evidence	New York, NY, United StatesHQ checked Sep 30, 2026	501-1,000	406 contacts →
	Partial evidence “iCrossing is a Hearst-owned digital marketing agency and marketing technology consultancy that helps brands win demand, convert demand, and scale performance in an AI-driven world.” Source: RevenueBase Database · checked Sep 30, 2026
20	Winclap	Partial evidence	New York, NY, United StatesHQ checked Sep 30, 2026	201-500	374 contacts →
	Partial evidence “Winclap is a Growth Transformation company helping brands transform how they attract, acquire, retain, entertain and monetize users.” Source: RevenueBase Database · checked Sep 30, 2026
21	Reprise Digital	Indirect evidence	New York, NY, United StatesHQ checked Sep 30, 2026	1,001-5,000	366 contacts →
	Indirect evidence “We are now KINESSO.” Source: RevenueBase Database · checked Sep 30, 2026
22	Acadia	Strong evidence	Atlanta, GA, United StatesHQ checked Sep 30, 2026	201-500	340 contacts →
	Strong evidence “We are a trusted growth marketing agency that brings together scarce skills in the area of CRO (conversion rate optimization), Paid Media (Search, Performance, Video, Audio…” Source: RevenueBase Database · checked Sep 30, 2026
23	Coalition Technologies	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 30, 2026	201-500	320 contacts →
	Indirect evidence “Coalition Technologies is one of the leading SEO & web design agencies in the United States.” Source: RevenueBase Database · checked Sep 30, 2026
24	Marketbridge	Indirect evidence	Bethesda, MD, United StatesHQ checked Sep 30, 2026	201-500	319 contacts →
	Indirect evidence “Marketbridge partners with B2B leaders to create unified Go-to-Market® systems by connecting strategy, AI, creativity, activation and measurement.” Source: RevenueBase Database · checked Sep 30, 2026
25	Targetbase	Partial evidence	Irving, TX, United StatesHQ checked Sep 30, 2026	201-500	315 contacts →
	Partial evidence “Targetbase is a precision marketing agency obsessed with performance-our clients’ and our own.” Source: RevenueBase Database · checked Sep 30, 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: growth marketing firms. 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 growth marketing firms.
Partial evidence: Its own public description names part of growth marketing firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name growth marketing firms. 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 26,961 growth marketing firms based in the United States

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Growth marketing firms based in the United States at a glance

As of Sep 30, 2026

27.4%Verified-email coverage

29.4%Mobile-number coverage

6.9Average contacts per company

1-10Median size (employees)

5.3%Largest-city concentration · New York

Sep 30, 2026Page data refreshed

Companies by employee count

1-10

19,753

11-50

6,056

51-200

892

201-500

161

501-1,000

1,001-5,000

5,001-10,000

10001+

Freshness & accuracy

How recently the business emails were verified and the company information checked

Email last verified

Median 33.0d

14,2280–30

34,57131–60

1,59161–90

5090–180

489180+

Company record updated

Median 92.0d

00–30

30,74831–60

58,11461–90

86,33090–180

10,484180+

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 growth marketing firms, 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 “growth marketing firms”. 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 growth marketing firms), 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 growth marketing firms, 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, 50,929 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 30, 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.

Growth marketing firms 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 growth marketing firms, 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 growth marketing firms are there based in the United States?

RevenueBase identified 26,961 growth marketing firms 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?

Zoominfo, headquartered in Vancouver, tops this list with the largest team on record.

Which city has the most growth marketing firms?

New York leads with 1423 headquartered companies, followed by Los Angeles (904) and Miami (689).

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 50,929 verified decision-maker contacts tracked across these 26,961 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 30, 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.