Here are Dallas (or Dallas‑area) marketing/SEO firms that advertise focused services for personal injury attorneys, with a short note about each and a source you can check:

• Mach 1 Design — Texas digital agency that highlights law‑firm SEO and case studies for Dallas personal injury clients. (mach1design.com)
• GrowLaw (Grow Law) — law‑firm marketing agency offering local SEO, content and PPC specifically for Dallas personal injury firms. (GrowLaw.co)
• Acute SEO — advertises “Personal Injury Lawyer SEO Services” with Dallas‑specific pages and AI/SEO positioning for attorneys. (acuteseo.com)
• dNOVO Group — Dallas agency that lists personal injury among its law‑firm marketing specialties (SEO, PPC, local). (dnovogroup.com)
• iLawyerMarketing — attorney marketing firm with a Dallas practice area focus including personal injury SEO and ads. (iLawyerMarketing.com)
• Law Cube — law‑firm SEO agency that lists personal injury among practice areas it serves and offers local SEO for attorneys. (lawcube.com)
• Scale & Sword (Scale and Sword Advertising) — Texas agency marketing law‑firm SEO for personal injury and other practice areas in Dallas–Fort Worth. (scaleandsword.com)
• We Do Web — provides Dallas law‑firm SEO with keyword/local search data and personal injury keyword focus. (wedoweb.com)

Notes:

• These firms range from local Dallas agencies to specialized law‑firm marketers that operate nationally but have Dallas practice pages. I pulled each firm’s Dallas/personal‑injury SEO claims from their websites (links above).
• If you’d like, I can: (a) filter for only strictly Dallas‑based (headquartered in Dallas) shops, (b) compare pricing/packages, (c) pull client case studies/reviews for 2–3 firms, or (d) produce short outreach messages you can use to request proposals. Which would you like next?