Independent list · re-checked September 28, 2026 · published by Primortul LLC

Timmermann Group

Timmermann Group is a St. Louis digital agency founded in 2003 that describes itself as the marketing agency for conversions, not diversions. It runs organic and paid search, social advertising and conversion-rate optimisation and builds the websites those campaigns land on, for legal, manufacturing, home-services and contractor clients such as Tacony Corporation and CertaPro Painters. Nobody pays to be ranked.

Why it’s hereAn Inc. 5000 honoree recognised by the St. Louis Business Journal as one of the region's fastest-growing and largest firms, with a Hermes Platinum award for SEO. Number 9 of the digital marketing agencies in the Midwest.

Who leads itRob Timmermann, Founder & CEO.

Estimated cost

Estimated: $6,000–$18,000/mo, typical for Midwest digital marketing retainers; not a quote.

Typical industry estimate, not a quote from any firm on this list.

A fit forLaw firms, manufacturers, home service contractors and senior living operators that want SEO, PPC and lead-focused websites from a St. Louis-area firm founded in 2003.

wearetg.com ↗Get matched — free, no obligation
Based in
St. Louis, MO
Founded
2003
Team size
11–50 people
Led by
Rob Timmermann, Founder & CEO
Known for
SEO · paid search · conversion-focused web design · social media advertising
Named clients
Tacony Corporation, Telle Tire & Auto Centers, H-E Parts International, CertaPro Painters, St. Louis Area Foodbank, Simon Law
Best for
Law firms, manufacturers, home service contractors and senior living operators that want SEO, PPC and lead-focused websites from a St. Louis-area firm founded in 2003.
Estimated cost

Estimated: $6,000–$18,000/mo, typical for Midwest digital marketing retainers; not a quote.

Typical industry estimate, not a quote from any firm on this list.

Office
12645 Olive Blvd #212 · Creve Coeur, MO · 63141 · (314) 588-1735
Timmermann Group homepage, captured September 28, 2026
wearetg.com · homepage on September 28, 2026

Sources wearetg.com, clutch.co · LinkedIn ↗

On this list

Free · no obligation

Describe the job. One digital marketing agency writes back.

Tell us what you sell, what is not working, and what done looks like. We read it and ask one provider — from this list, or from the publisher’s bench — to contact you within a business day. Asking is free. You do not have to hire them. Nobody else gets what you wrote.

When

Sending shares what you wrote with the one provider we match you to. How that works.

The same list, elsewhere
Other lists in the Midwest