I help founders get unstuck and get going.

I sold my first company in 2025. Now I'm modernizing entrepreneurship by combining timeless principles and AI-centric systems.

Jonathan Engle
Currently
Startup services & health solutions
Serving
Utah Army National Guard
Languages
EN · RU · ES · PT
Exit
Sold Startup Stack to Startup Science, 2025

I build the machine, then I run it.

I bootstrapped The Startup Stack to an exit without raising a dollar. Then I ran marketing, revenue operations, and sales by myself for a company with five product lines.

250+
Partnerships grown from 70, with 90+ on revenue share
$560K+
In custom SaaS deals coordinated
10,000+
Subscribers built with no paid marketing
$307,950
Raised on a Reg CF round I ran all the marketing for
See the whole track record

What I do.

Three things have my attention. The running detail of what I'm building this month lives on the Now page.

  1. 01

    Fractional GTM

    I measure what your marketing is actually doing, install the context layer your AI needs to be worth using, and run cold outbound off data that's finally clean. Founder coaching runs alongside it, for when the problem turns out to be the founder rather than the funnel.

    See how it works
  2. 02

    Kingsfoil Health

    Modernizing group benefits through creative plan structures: level-funded, partially self-funded, and PEO partnerships. We're restoring dignity to our healthcare system, one company at a time.

    kingsfoilhealth.com
  3. 03

    Cadence

    The system for building an AI-centric company. Timeless startup knowledge, your company's own context, and the workflows that tie the two together, written down where your AI can read it. I deploy this in startups to accelerate their progress.

    See the system

Let's find the next honest step.

It's hard to find a proper sounding board as a founder. Speak with someone who gets it and can help you get to the next best step toward the outcome you want.

Book a call

Or find me on LinkedIn and X. DMs open.