Hennessey Digital
North Hollywood SEO and GEO agency for law firms, mainly personal injury and criminal defense. Founded 2015, acquired by Herringbone Digital in 2025.
Proofs
Every number below links to its source. Ratings and review counts are read from the platform on the date shown; the reviews themselves stay on the platform.
Case studies
Named, public, with a stated result. An unnamed client story does not count.
Founders
- Founder of EverSpark Interactive, later sold
- Author of the book Law Firm SEO (2021)
- Host of The Jason Hennessey Podcast
What they do
- Services
- GEO · SEO · Content SEO · CRO · AI visibility tracking
- Industries
- Legal · Local businesses
- Regions served
- US
- Monthly budget
- $5k-$15k/mo
- Team size
- 51-200
- Founded
- 2015
- Address
- 5200 Lankershim Blvd #170, North Hollywood, CA 91601
- Pricing
- On request
About
Hennessey Digital is a legal marketing agency founded in 2015 by Jason Hennessey, who has worked in SEO since 2001 and wrote the 2021 book Law Firm SEO. Its published address is in North Hollywood, California, though a 2025 announcement describes the team of about 125 as fully remote. The agency sells SEO, PPC, content, conversion rate optimization and web design, almost entirely to law firms. Generative engine optimization is sold as a named service for personal injury and criminal defense firms, with LLM visibility monitoring and monthly citation reporting listed as part of it. Contracts run month to month. In June 2025 the agency was acquired by Herringbone Digital, a private equity-backed group; the brand and executive team were kept.
The record has substance on the SEO side. Clutch shows 4.7 from 9 reviews and a $5,000 minimum project size. Named case studies include Top Class Actions and the veterans firm CCK Law, both reporting large gains in ranking keywords, and the HVAC company Ambient Edge. The National Law Review included it on its 2026 list of best legal marketing companies.
What is missing: no case study yet reports GEO or AI answer results, and several case pages name the client without giving figures or timeframes. There is no public pricing, the G2 listing has no reviews, and the review count on Clutch is low for an agency of this size. Buyers outside legal services will find little evidence of work in their sector.
Written by GEO Agency Index from public sources. If the record has changed, claim the profile and send the links.