Company lists · Data refreshed September 2026

Top 25 SEO agencies for lead generation based in Houston, United States

Name: SEO agencies for lead generation based in Houston, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 29, 2026 170 companies tracked

RevenueBase identified 170 SEO agencies for lead generation headquartered in Houston, United States as of September 2026 and tracks 659 professional contacts across them, including 161 with verified work emails. Across the United States, New York is the largest hub for this category (385 companies); Houston has 170.

This list covers SEO agencies for lead generation headquartered in Houston, 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

170Companies

659Contacts tracked

161Verified emails

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The 25 largest SEO agencies for lead generation based in Houston, United States

Ranked by team size

Top 25 of 170 SEO agencies for lead generation based in Houston, United States, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to SEO agencies for lead generation: 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	Forthea	Indirect evidence	Houston, TX, United StatesHQ checked Sep 29, 2026	51-200	54 contacts →
	Indirect 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
2	Topspot	Partial evidence	Houston, TX, United StatesHQ checked Sep 29, 2026	51-200	48 contacts →
	Partial evidence “Based in Houston, TopSpot offers integrated digital marketing services that focus on driving quality leads and new business opportunities.” Source: RevenueBase Database · checked Sep 29, 2026
3	EWR Digital	Partial evidence	Houston, TX, United StatesHQ checked Sep 29, 2026	11-50	34 contacts →
	Partial evidence “EWR Digital is a Houston-based SEO agency and digital marketing firm specializing in search engine optimization (SEO), AI SEO, PPC, and website design.” Source: RevenueBase Database · checked Sep 29, 2026
4	Regex SEO	Partial evidence	Houston, TX, United StatesHQ checked Sep 29, 2026	11-50	26 contacts →
	Partial evidence “Regex SEO is a Houston-based Internet Marketing company, which was formed by a group of seasoned professionals with extensive experience in the digital marketing arena.” Source: RevenueBase Database · checked Sep 29, 2026
5	Brandnation	Partial evidence	Houston, TX, United StatesHQ checked Sep 29, 2026	11-50	23 contacts →
	Partial evidence “We are an international digital marketing/SEO and web design consulting firm based in Houston, TX with leadership that has over 15 years of proven success.” Source: RevenueBase Database · checked Sep 29, 2026
6	Marketing Refresh	Indirect evidence	Houston, TX, United StatesHQ checked Sep 29, 2026	11-50	13 contacts →
	Indirect evidence “We help B2B brands get ROI on their digital marketing investment.” Source: RevenueBase Database · checked Sep 29, 2026
7	Spacejet Media LLC	Strong evidence	Houston, TX, United StatesHQ checked Sep 29, 2026	1-10	13 contacts →
	Strong evidence “Spacejet Media is a premier online marketing and internet lead generation company focused on delivering sustainable, scalable and fruitful value to its advertisers and publishers.” Source: RevenueBase Database · checked Sep 29, 2026
8	Best Case Leads	Strong evidence	Houston, TX, United StatesHQ checked Sep 29, 2026	1-10	13 contacts →
	Strong evidence “Best Case Leads is the premier lead generation company for attorneys that delivers relevant, exclusive, and affordable leads to lawyers in real-time.” Source: RevenueBase Database · checked Sep 29, 2026
9	Gopoint Agency	Partial evidence	Houston, TX, United StatesHQ checked Sep 29, 2026	11-50	12 contacts →
	Partial evidence “Expertos en SEO, SEM y Desarrollo Web.” Source: RevenueBase Database · checked Sep 29, 2026
10	Itsguru	Indirect evidence	Houston, TX, United StatesHQ checked Sep 29, 2026	11-50	12 contacts →
	Indirect evidence “ItsGuru is a Houston, TX based consulting firm providing solutions to small and medium sized businesses.” Source: RevenueBase Database · checked Sep 29, 2026
11	Bizopia	Partial evidence	Houston, TX, United StatesHQ checked Sep 29, 2026	11-50	11 contacts →
	Partial evidence “Bizopia turns clicks into customers by optimizing websites and online platforms through proven SEO strategies, search engine optimization, social media, video marketing, email…” Source: RevenueBase Database · checked Sep 29, 2026
12	Astoundz	Indirect evidence	Houston, TX, United StatesHQ checked Sep 29, 2026	11-50	11 contacts →
	Indirect evidence “In 2025, unleash the full potential of your business with top-tier Internet marketing services.” Source: RevenueBase Database · checked Sep 29, 2026
13	Enlimited	Indirect evidence	Houston, TX, United StatesHQ checked Sep 29, 2026	11-50	11 contacts →
	Indirect evidence “Enlimited is a B2B marketing agency that builds systems, not campaigns.” Source: RevenueBase Database · checked Sep 29, 2026
14	Marketing Depot	Indirect evidence	Houston, TX, United StatesHQ checked Sep 29, 2026	11-50	9 contacts →
	Indirect evidence “We are techies, artists, explorers, teachers, marketing gurus and technology geeks - and we're a company of old fashioned values!” Source: RevenueBase Database · checked Sep 29, 2026
15	Authority Solutions	Partial evidence	Houston, TX, United StatesHQ checked Sep 29, 2026	11-50	9 contacts →
	Partial evidence “Authority Solutions® is an integrity-driven digital marketing agency that offers internet marketing services, with a focus on SEO and web design that work together to produce…” Source: RevenueBase Database · checked Sep 29, 2026
16	Dealerwebb Services	Indirect evidence	Houston, TX, United StatesHQ checked Sep 29, 2026	11-50	8 contacts →
	Indirect evidence “Changing the Way You Look at Your Business.” Source: RevenueBase Database · checked Sep 29, 2026
17	Asap Marketing Solutions	Indirect evidence	Houston, TX, United StatesHQ checked Sep 29, 2026	1-10	7 contacts →
	Indirect evidence “We are a digital marketing agency located in The Galleria.” Source: RevenueBase Database · checked Sep 29, 2026
18	Directory ONE Search Marketing	Partial evidence	Houston, TX, United StatesHQ checked Sep 29, 2026	11-50	7 contacts →
	Partial evidence “Houston Search Engine Optimization Company Directory One is a full service website marketing company offering SEO/SEM, pay per click management, website design, video production…” Source: RevenueBase Database · checked Sep 29, 2026
19	PAY PER Click Houston	Indirect evidence	Houston, TX, United StatesHQ checked Sep 29, 2026	1-10	7 contacts →
	Indirect evidence “Houston Pay Per Click (PPC), provides internet advertising & search engine marketing services.” Source: RevenueBase Database · checked Sep 29, 2026
20	Integrity Marketing And Consulting	Indirect evidence	Houston, TX, United StatesHQ checked Sep 29, 2026	1-10	7 contacts →
	Indirect evidence “Welcome to Integrity Marketing and Consulting!” Source: RevenueBase Database · checked Sep 29, 2026
21	Anytime Digital Marketing	Indirect evidence	Houston, TX, United StatesHQ checked Sep 29, 2026	11-50	6 contacts →
	Indirect evidence “Anytime Digital Marketing is a Houston based digital marketing and advertising agency comprised of professionals who have a passion for helping businesses realize their marketing…” Source: RevenueBase Database · checked Sep 29, 2026
22	Method 21	Indirect evidence	Houston, TX, United StatesHQ checked Sep 29, 2026	1-10	5 contacts →
	Indirect evidence “Our slogan "Creatives Marketing the Web" is the best way we can think of to describe our goal: to combine the latest in web design and development with proven…” Source: RevenueBase Database · checked Sep 29, 2026
23	Seo411	Indirect evidence	Houston, TX, United StatesHQ checked Sep 29, 2026	1-10	5 contacts →
	Indirect evidence “SEO411 is a turnkey search marketing consultation and web development firm that specializes in establishing a strong customer base for every client we work with.” Source: RevenueBase Database · checked Sep 29, 2026
24	Alkali	Indirect evidence	Houston, TX, United StatesHQ checked Sep 29, 2026	11-50	5 contacts →
	Indirect evidence “At Alkali, we pride ourselves on being technology and marketing experts that are deeply client-oriented.” Source: RevenueBase Database · checked Sep 29, 2026
25	SEO Houston Pros	Partial evidence	Houston, TX, United StatesHQ checked Sep 29, 2026	11-50	5 contacts →
	Partial evidence “In 2017, there is a never-ending search for an seo expert that is an effective advertising agency in Houston.” 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: SEO agencies for lead generation. 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 SEO agencies for lead generation.
Partial evidence: Its own public description names part of SEO agencies for lead generation, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name SEO agencies for lead generation. 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 170 SEO agencies for lead generation based in Houston, United States

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SEO agencies for lead generation based in Houston, United States at a glance

As of Sep 29, 2026

24.4%Verified-email coverage

3.9Average contacts per company

1-10Median size (employees)

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

121

11-50

51-200

Email recency for this list is measured across the whole United States list rather than for Houston, so it is reported there. Company counts and contact totals on this page are exact for Houston, over 170 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 SEO agencies for lead generation, 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 Houston, United States whose own description of what they do matches “SEO agencies for lead generation”. 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 SEO agencies for lead generation), 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 SEO agencies for lead generation, and records with no verified work email. Companies headquartered outside Houston 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, 161 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.

SEO agencies for lead generation by metro in the United States

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 SEO agencies for lead generation, 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 SEO agencies for lead generation are there based in Houston, United States?

RevenueBase identified 170 SEO agencies for lead generation headquartered in Houston, 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?

Forthea, headquartered in Houston, tops this list with the largest team on record.

Which city in the United States has the most SEO agencies for lead generation?

New York leads the United States with 385 headquartered companies, followed by Los Angeles (254) and Houston (170).

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 161 verified decision-maker contacts tracked across these 170 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.

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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.