Updated May 2026 · 49 verified marketing agencies · CAN-SPAM compliant

Marketing Agencies in Houston, Texas 49 verified marketing agencies with email

Houston's marketing agency market includes 49 verified operators, each with confirmed contact details and track records. This list gives you direct access to Houston's most active marketing agencies—from SEO specialists and design shops to full-service demand-generation firms—all ready for partnership conversations, cold outreach, or vendor evaluation.

Total Marketing Agencies
49
Across Houston
Corporate Emails
20
41% non-Gmail
Avg Rating
4.90/5
2,865 total reviews
Top Rated
47
Rated 4.5 or higher

/ 01 — Sample previewSee what's in the file

Five rows from the full 49-row dataset, sorted by rating & review count. The complete CSV includes phone, full street address, postal code, website URL, Google rating, review count, email type (corporate vs webmail), and the parent domain.

publicleads-houston-marketing-agencies.csv · 49 rows · 12 columnsPREVIEW
NameRatingReviewsEmail
Endless 8 Marketing5.0136contact@jhaallenllc.com
Campbell Marketing Group5.0124
Ascendly Marketing and Website Design5.0105
Red Houston SEO Company5.094contact@redhoustonseocompany.com
Nimbus Media5.065team@nimbusmedia.io
+ 44 more rows in the full downloadCSV · XLSX · JSON

/ 02 — Market insightHouston's marketing agencies market in numbers

Houston's marketing agencies average 4.90 stars across 2,865 Google reviews, with 47 agencies rated 4.5 or higher—signaling a mature, high-performing market. Notably, 41% of agencies maintain corporate email addresses (info@, contact@, hello@), making direct B2B outreach straightforward. The market is anchored by operators like Endless 8 Marketing, which holds a 5.0-star rating with 136 reviews, demonstrating the quality and reputation depth in this cluster.

49
Active marketing agencies
41%
Corporate domain emails
58
Avg Google reviews

/ 03 — Built forWho buys this list

A

SaaS & MarTech Tools

SaaS platforms (HubSpot, Semrush, Ahrefs, Mailchimp, ClickUp, Monday) rely on agency adoption to scale. This Houston list targets decision-makers at the 49 agencies most likely to trial and renew marketing-ops software, with an average of 58 reviews per agency indicating active, engaged operators.

B

White-Label Service Providers

Outsourced design, SEO, content, video, and development shops find their highest-margin channel through Houston's marketing agencies. With 41% maintaining corporate inboxes, these agencies are actively recruiting partnerships and looking for vetted white-label partners to scale client delivery.

C

Lead Gen & Data Platforms

Cold-email tools, B2B contact databases, intent-data vendors, and partnership networks acquire customers fastest by reaching agency owners and CMOs directly. Houston's 49 agencies—averaging 4.5+ stars—are proven, high-intent buyers for tools that help them win and retain clients.

/ 04 — QuestionsFrequently asked

How recent is this Houston marketing agency list?+

The list reflects currently verified agencies with active Google profiles, phone numbers, and email addresses. Each entry is checked for accuracy to ensure your outreach reaches real decision-makers, not outdated or defunct contacts.

What data comes with each marketing agency record?+

Each record includes the agency name, phone, verified email address (where available), physical address, Google rating, review count, and website. This gives you everything needed to personalize cold outreach or build a partnership pitch.

Can I filter by agency size or specialty (SEO, design, demand gen)?+

The base list is sorted by rating and review volume, giving you a quality-first view. You can filter the CSV by keywords in agency names or Google descriptions to identify specialists in SEO, design, video, or other services that match your product or service.

Why do some Houston agencies have corporate emails and others use Gmail?+

Newer, smaller, or solopreneur-run agencies often use Gmail or Outlook, while established shops maintain branded domains. The 41% corporate email rate reflects Houston's blend of mid-market and enterprise-tier operators—all decision-makers regardless of email provider.

Is there a guarantee on email accuracy or phone validity?+

All phone numbers and addresses are verified against current Google Business profiles and public records. Email addresses are cross-checked against agency websites and corporate databases to maximize deliverability and contact success rate.

How many cold outreach campaigns can I run with this list?+

This is a one-time CSV download covering all 49 verified Houston marketing agencies. You can use it for unlimited campaigns, A/B testing, and follow-up sequences—there are no per-contact usage limits or licensing restrictions.

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