Hi! I'm Jacob.

Builder Operator

I build and scale agencies, writing about what I learn along the way.

A passion for professional services

My story

Jacob Brain

An entrepreneur at heart, in 2018 I acquired equity in a marketing agency, taking over operations. We scaled the agency to become a household name in the B2B technology marketing space, I enabled the original founder to step back from the day-to-day, and in early 2023, we sold the agency.

After the sale, I joined a team rolling up agencies. Hit the Inc. 5000, learned more in two years than the previous ten about what makes service businesses actually work.

Today I'm building Arachnid Works - developing the agency of the future, with a team I'm proud to work with.

Substack >> LinkedIn >>
Testimonials

Some kind words

In my humble opinion, Jacob is one of the top 1% experts regarding agency growth.
Bogdan Liutic 3x Founder
If you run an agency, you MUST talk to Jacob!
Jamie Dowis Co-Founder & Head of Growth at Curio Digital
Jacob guided me in pricing, packaging and agency operations strategy, pulling from his many years serving tech companies via an agency business model. Jacob is a full-time agency mastermind and strategist
Hal Zeitlin Founder, CandidLeap
In my humble opinion, Jacob is one of the top 1% experts regarding agency growth.
Bogdan Liutic 3x Founder
If you run an agency, you MUST talk to Jacob!
Jamie Dowis Co-Founder & Head of Growth at Curio Digital
Jacob guided me in pricing, packaging and agency operations strategy, pulling from his many years serving tech companies via an agency business model. Jacob is a full-time agency mastermind and strategist
Hal Zeitlin Founder, CandidLeap