The human behind the mammoth
Life should make you jolly.
That's the belief we started with. It still shapes the work we choose, the advice we give, and the way we show up.
Jack Fentress · Founder
Business is human.
Let's keep it that way.
Jolly Mammoth is an advisory-led AI consultancy based in Eau Claire, Wisconsin. We help established businesses work through operational inefficiencies and growth constraints with experience-backed consulting, AI expertise, and practical recommendations.
Our firsthand strength is in construction, trades, and services. We understand that a business has to work beyond a presentation: on a job site, during a busy season, and when the owner finally takes a day off.
We work across industries, starting with curiosity about your business instead of assumptions about the technology you need.
People before platforms. Problems before products. A little more room for the parts of life that make you jolly.
Get to know our approach →