Jack Lesser, Founder.
With Not For is founder-led and built to stay that way. When you work with us, you work directly with Jack. No handoffs, no junior work, no account managers.
Businesses come to With Not For because they know AI is changing things but aren't sure how to act on it. They've seen the demos. They've heard the pitch. What they need is someone who will actually learn their business, cut through the noise, and build something that works for their specific team.
We work across tools: Claude, ChatGPT, Gemini, and others, helping businesses adopt what fits, build what doesn't exist yet, train their teams to use it well, and put policies in place that protect the business while enabling the upside.
Jack spends most of his time thinking about how AI is reshaping the way businesses operate and how to help them get ahead of it before their competitors do.