Insights

Brand prestige Leverage Mark Thiessen’s award-winning profile and high-profile recognitions to position firm leadership in client acquisition materials and targeted outreach to potential clients seeking experienced DWI defense.

Niche strength Highlight the firm’s specialization in DWI and drugs-related charges, offering focused value propositions to potential clients, referral partners, and allied professionals in Texas who need expert trial defense.

Houston footprint Capitalize on the local presence in Houston with a 24/7 client commitment to attract clients needing immediate legal support and to engage local media, courts, and community partners for collaboration and referrals.

Digital readiness Utilize the existing tech stack and strong online visibility to expand digital marketing, lead generation, and retainer-based services, targeting search terms related to DWI, criminal defense, and Texas law.

Growth signals Position the firm as scalable for referrals and partnerships with other law firms or organizations encountering high volumes of exposure in criminal defense, leveraging awards, certifications, and notable case trial readiness as credibility boosters.

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Thiessen Law Firm Tech Stack

Thiessen Law Firm uses 8 technology products and services including Microsoft Advertising, Reddit Ads, Crazy Egg, and more. Explore Thiessen Law Firm's tech stack below.

Thiessen Law Firm's Email Address Formats

Thiessen Law Firm uses at least 4 email formats:
Thiessen Law Firm Email FormatsExamplePercentage
First@thetexastrialattorney.comJohn@thetexastrialattorney.com
74%
FLast@thetexastrialattorney.comJDoe@thetexastrialattorney.com
15%
First.Last@thetexastrialattorney.comJohn.Doe@thetexastrialattorney.com
6%
Last@thetexastrialattorney.comDoe@thetexastrialattorney.com
5%

Frequently Asked Questions

What is Thiessen Law Firm's phone number?

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You can contact Thiessen Law Firm's main corporate office by phone at . For more prospecting data, LeadIQ has access to up-to-date and accurate contact information within our platform. Find, capture, and sync contact data to your CRM and sales tools in one click.

What is Thiessen Law Firm's official website and social media links?

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Thiessen Law Firm's official website is thetexastrialattorney.com and has social profiles on LinkedIn.

How much revenue does Thiessen Law Firm generate?

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As of September 2026, Thiessen Law Firm's annual revenue is estimated to be $1M - $10M.

What is Thiessen Law Firm's SIC code and NAICS code?

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Thiessen Law Firm's SIC code is 8111 - Legal Services and NAICS code is 54111 - Offices of Lawyers.

How many employees does Thiessen Law Firm have currently?

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As of September 2026, Thiessen Law Firm has approximately 15 employees across 1 continents, including North America. Key team members include Case Manager: S. M. Explore Thiessen Law Firm's employee directory with LeadIQ.

What industry does Thiessen Law Firm belong to?

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Thiessen Law Firm operates in the Law Practice industry.

What technology does Thiessen Law Firm use?

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Thiessen Law Firm's tech stack includes Microsoft Advertising, Reddit Ads, Crazy Egg, Microsoft Clarity, WordPress, TweenMax, WP Engine and Google Search Console.

What is Thiessen Law Firm's email format?

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Thiessen Law Firm's email format typically follows the pattern of First@thetexastrialattorney.com. Find more Thiessen Law Firm email formats with LeadIQ.

When was Thiessen Law Firm founded?

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Thiessen Law Firm was founded in 2011.
Thiessen Law Firm logo

Thiessen Law Firm

Law PracticeTexas, United States11-50 Employees

The Thiessen Law Firm is a criminal defense practice based in Houston, Texas. The firm emphasizes deep knowledge of the law and related sciences, professional conduct, and around-the-clock availability for clients. Led by trial attorney Mark Thiessen, it defends individuals facing a range of charges, with a particular focus on DWI and drug-related offenses, prioritizing thorough preparation to pursue favorable outcomes.

Its clients include people charged with offenses from petty theft to murder, and the firm handles matters by focusing on evidentiary, constitutional, and scientific considerations to support trial readiness. The firm and its lead attorney have earned multiple recognitions, including Thomson Reuters Super Lawyers honors, AVVO top rating, and board certifications in criminal law and DUI defense. Based in Houston, the practice operates as a mid-sized firm.

Section iconCompany Overview

Phone number
SIC Code
8111 - Legal Services
NAICS Code
54111 - Offices of Lawyers
Founded
2011
Employees
11-50

Section iconFunding & Financials

  • $1M - $10M

    Thiessen Law Firm's revenue is estimated to be in the range of $1M - $10M

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