Company lists · Data refreshed September 2026

Top 25 Search engine marketing software companies based in the United States

Name: Search engine marketing software 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 29, 2026 1,458 companies tracked

RevenueBase identified 1,458 search engine marketing software companies headquartered in the United States as of September 2026 and tracks 9,638 professional contacts across them, including 1,939 with verified work emails. New York is the largest hub.

This list covers search engine marketing software 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 29, 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 29, 2026 86% judged on-target in blind review

1,458Companies

9,638Contacts tracked

1,939Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest search engine marketing software companies based in the United States

Ranked by team size

Top 25 of 1,458 search engine marketing software companies based in the United States, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to search engine marketing software 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	Localedge	Indirect evidence	Buffalo, NY, United StatesHQ checked Sep 29, 2026	501-1,000	383 contacts →
	Indirect evidence “LocalEdge, a Hearst Media Services Company, offers a full suite of online advertising products and services for any size business and budget across the country.” Source: RevenueBase Database · checked Sep 29, 2026
2	Adcellerant	Partial evidence	Denver, CO, United StatesHQ checked Sep 29, 2026	201-500	183 contacts →
	Partial evidence “AdCellerant is a digital marketing platform and growth partner that helps media companies and agencies simplify operations, scale campaigns, and drive measurable growth.” Source: RevenueBase Database · checked Sep 29, 2026
3	Dealeron	Indirect evidence	Rockville, MD, United StatesHQ checked Sep 29, 2026	201-500	129 contacts →
	Indirect evidence “DealerOn has been the perfect partner for over dealers across North America.” Source: RevenueBase Database · checked Sep 29, 2026
4	Mainstreethost	Strong evidence	Amherst, NY, United StatesHQ checked Sep 29, 2026	51-200	128 contacts →
	Strong evidence “Mainstreethost specializes in everything you need to have a successful online presence, including search engine optimization, paid search marketing, website design, social media…” Source: RevenueBase Database · checked Sep 29, 2026
5	Optmyzr	Indirect evidence	Palo Alto, CA, United StatesHQ checked Sep 29, 2026	51-200	113 contacts →
	Indirect evidence “Our award-winning, turnkey PPC management suite is built on a foundation of barrier-smashing AI and machine learning power.” Source: RevenueBase Database · checked Sep 29, 2026
6	Seomoz	Partial evidence	Seattle, WA, United StatesHQ checked Sep 29, 2026	51-200	105 contacts →
	Partial evidence “SEOmoz is the world’s most popular provider of SEO software.” Source: RevenueBase Database · checked Sep 29, 2026
7	Camp Digital	Partial evidence	Edina, MN, United StatesHQ checked Sep 29, 2026	51-200	103 contacts →
	Partial evidence “CAMP Digital is a technology-first digital marketing agency built exclusively for home service companies.” Source: RevenueBase Database · checked Sep 29, 2026
8	Seoprofy	Indirect evidence	Orlando, FL, United StatesHQ checked Sep 29, 2026	51-200	89 contacts →
	Indirect evidence “SeoProfy is your strategic SEO and AI visibility partner for organic and AI visibility that brings real ROI.” Source: RevenueBase Database · checked Sep 29, 2026
9	Paper Street Media	Partial evidence	Miami, FL, United StatesHQ checked Sep 29, 2026	11-50	88 contacts →
	Partial evidence “With more than a decade of experience Paper Street Media can help you leverage manpower and increase your capacity for marketing and web design projects.” Source: RevenueBase Database · checked Sep 29, 2026
10	Fuel Online Digital Marketing Agency - SEO Company	Strong evidence	Boston, MA, United StatesHQ checked Sep 29, 2026	51-200	79 contacts →
	Strong evidence “Fuel Online is the definitive global authority in Generative Engine Optimization (GEO) and high-performance search strategy.” Source: RevenueBase Database · checked Sep 29, 2026
11	Wordstream By Localiq	Partial evidence	Mclean, VA, United StatesHQ checked Sep 29, 2026	201-500	76 contacts →
	Partial evidence “WordStream by LocaliQ is your go-to source for data, insights, and endless digital marketing ideas.” Source: RevenueBase Database · checked Sep 29, 2026
12	10th Degree	Indirect evidence	Lake Forest, CA, United StatesHQ checked Sep 29, 2026	11-50	66 contacts →
	Indirect evidence “10TH DEGREE, LLC is a full-service interactive agency located in Orange County, California.” Source: RevenueBase Database · checked Sep 29, 2026
13	ad.net	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 29, 2026	51-200	64 contacts →
	Partial evidence “For over two decades, Ad.net has been the leader in independent search and social technology, working with premium brands and publishers to generate millions in annual incremental…” Source: RevenueBase Database · checked Sep 29, 2026
14	Passionfruit	Partial evidence	New York, NY, United StatesHQ checked Sep 29, 2026	51-200	62 contacts →
	Partial evidence “Passionfruit is the world's first AI-powered, end-to-end SEO/GEO growth engine that has proven to drive an average of 50% revenue growth for its clients.” Source: RevenueBase Database · checked Sep 29, 2026
15	Scalenut	Indirect evidence	Altadena, CA, United StatesHQ checked Sep 29, 2026	11-50	59 contacts →
	Indirect evidence “Your AI-powered SEO Co-Pilot Summary: Scalenut is an AI-powered SEO platform that helps businesses drive organic traffic and build sustainable businesses.” Source: RevenueBase Database · checked Sep 29, 2026
16	Digital Guider	Partial evidence	Sheridan, WY, United StatesHQ checked Sep 29, 2026	51-200	59 contacts →
	Partial evidence “DigitalGuider is a top Internet marketing company, that creates measurable marketing campaigns, tracking every click, every call, every lead, so you know that your advertising…” Source: RevenueBase Database · checked Sep 29, 2026
17	Webimax	Indirect evidence	Marlton, NJ, United StatesHQ checked Sep 29, 2026	11-50	58 contacts →
	Indirect evidence “WebiMax was founded on CEO Kenneth Wisnefski’s core principle of truly helping clients as more of a strategic partner than merely an outsourced vendor.” Source: RevenueBase Database · checked Sep 29, 2026
18	Specific Media	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 29, 2026	501-1,000	55 contacts →
	Indirect evidence “Please follow Viant, a premier people-based advertising technology company that enables marketers to plan, execute and measure digital media.” Source: RevenueBase Database · checked Sep 29, 2026
19	Bruce Clay, INC	Indirect evidence	Simi Valley, CA, United StatesHQ checked Sep 29, 2026	11-50	55 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 29, 2026
20	Webceo	Indirect evidence	Sheridan, WY, United StatesHQ checked Sep 29, 2026	51-200	55 contacts →
	Indirect evidence “WEBCEO LLC, founded in produces the world-famous WebCEO SEO Platform with 24 tools and white-label functionality.” Source: RevenueBase Database · checked Sep 29, 2026
21	Forthea	Partial evidence	Houston, TX, United StatesHQ checked Sep 29, 2026	51-200	54 contacts →
	Partial evidence “Your Trusted Digital Marketing Partner We love connecting data to decisions, transforming results, and accelerating your success.” Source: RevenueBase Database · checked Sep 29, 2026
22	PCG Digital	Indirect evidence	Manasquan, NJ, United StatesHQ checked Sep 29, 2026	11-50	51 contacts →
	Indirect evidence “At PCG, we pride ourselves on the relationships we have built with our clients.” Source: RevenueBase Database · checked Sep 29, 2026
23	GET Found First	Indirect evidence	Blackfoot, ID, United StatesHQ checked Sep 29, 2026	11-50	49 contacts →
	Indirect evidence “We do big PPC (Pay per click advertising).” Source: RevenueBase Database · checked Sep 29, 2026
24	Logical Media Group	Partial evidence	Chicago, IL, United StatesHQ checked Sep 29, 2026	11-50	45 contacts →
	Partial evidence “Logical Media Group is a full-service digital marketing agency located in the River North neighborhood of Chicago.” Source: RevenueBase Database · checked Sep 29, 2026
25	Helium SEO	Partial evidence	Cincinnati, OH, United StatesHQ checked Sep 29, 2026	51-200	45 contacts →
	Partial evidence “Helium SEO is a completely unique digital marketing company that utilizes artificial intelligence and machine learning to build highly efficient systems for SEO and SEM that far…” Source: RevenueBase Database · checked Sep 29, 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: search engine marketing software 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 search engine marketing software companies.
Partial evidence: Its own public description names part of search engine marketing software companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name search engine marketing software 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 1,458 search engine marketing software companies based in the United States

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 1,939 reachable decision-makers.

Free signup · no credit card

View the full list →

Search engine marketing software companies based in the United States at a glance

As of Sep 29, 2026

20.1%Verified-email coverage

6.6Average contacts per company

1-10Median size (employees)

4.0%Largest-city concentration · New York

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

991

11-50

356

51-200

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 1,458 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 search engine marketing software 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 “search engine marketing software 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 search engine marketing software 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 search engine marketing software 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, 1,939 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 29, 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.

Search engine marketing software companies 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 search engine marketing software 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 search engine marketing software companies are there based in the United States?

RevenueBase identified 1,458 search engine marketing software 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?

Localedge, headquartered in Buffalo, tops this list with the largest team on record.

Which city has the most search engine marketing software companies?

New York leads with 58 headquartered companies, followed by Houston (33) and Los Angeles (33).

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 1,939 verified decision-maker contacts tracked across these 1,458 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 29, 2026.

Ready to reach these companies? Verified emails and direct dials for all 1,458 search engine marketing software companies based in the United States. Start with a free account, no credit card.

Download this list →

Related lists

Search engine marketing software companies by geography

Browse the directory

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.