Jason Hennessey, SEO expert

Jason Hennessey

SEO consultant and author

Jason Hennessey is an SEO expert based in Los Angeles, United States.

Jason Hennessey is an internationally recognized SEO expert with more than two decades of experience studying Google search and building organic growth strategies. He is particularly known for legal SEO and founded Hennessey Digital, scaling it into a $20M plus agency before its sale to Trinity Hunt Partners. Hennessey is the author of Law Firm SEO and Honest SEO, founder of iloveseo.com and a frequent speaker on search, AI and digital strategy. His work has appeared in Entrepreneur, Inc. and The Washington Post.

Based in
Los Angeles, United States
Specialisms
Technical SEO, Local SEO

Jason Hennessey is an internationally recognized SEO expert and entrepreneur with more than two decades of experience in organic search. A self taught practitioner, he began reverse engineering Google’s algorithm in 2001 and developed deep expertise in technical SEO and search strategy. He became particularly recognized for his work in the legal industry, helping law firms improve organic visibility in highly competitive search markets. Hennessey later wrote the bestselling books Law Firm SEO and Honest SEO, which document methods developed through years of practical search marketing work.

Hennessey has founded and successfully exited multiple businesses. He launched Everspark Interactive in 2009 and later sold the company. In 2015, he founded Hennessey Digital and grew it from a small consultancy into an agency generating more than $20 million in revenue. The company earned a place on the Inc. 5000 for six consecutive years before being sold to Trinity Hunt Partners. Hennessey also helped establish Herringbone Digital, a private equity backed platform that acquires and scales specialized marketing agencies. He serves on its board and is one of its largest shareholders.

His current work connects search expertise with business growth and the changing role of AI in digital marketing. Hennessey founded iloveseo.com to publish SEO industry insights and hosts The Jason Hennessey Podcast. He regularly speaks at conferences and executive events about search optimization and AI driven marketing. His work has been featured in The Washington Post and Entrepreneur. Hennessey holds an Executive MBA from Stanford University and a marketing degree from UNLV. He is also a United States Air Force veteran.

Areas of expertise

Jason Hennessey specialises in Technical SEO and Local SEO.

Where Jason Hennessey ranks