Member Spotlight

Clark Sell

Founder & Practitioner, THAT & Unspecified

Member Since January, 2020

Hi, I'm Clark. I'm on my 48th trip around the sun, having lived my entire life along the IL/WI border. I'm married to my best friend, fantastic wife, and business partner, and we share the joys of raising two kids, Ethan and Addison. Historically trained software developer, architect, and product manager, I've managed to fool companies such as Allstate, Microsoft, and Telerik to let this crazy passionate, entrepreneurial, "see only limitless opportunities" of a person work for them. My wife and I have founded two companies, THAT Conference and Unspecified. I fell backward into software development because computers help people scale. It's my love for people and helping one another that's led me to a life of building products that build communities. It's my mission to create software that connects people in a more profound and meaningful way. Today, THAT Conference is one of the largest Family Friendly Technology Conferences. During the pandemic, we created a SAAS platform to connect geeks across the globe. Unspecified is our boutique software development company. We use our extensive enterprise application skills to help small businesses build software to improve their business. Regardless of titles, I will always call myself a practitioner.


Embrace failure, lean into your journey and if you don't like the road, take the fork.

Clark Sell

My Upcoming Activities

Check out my upcoming activities currently on the schedule, or view all upcoming activities.

    My Followers

    Brett Slaski Clark Sell Michael Richardson Ben Shannon Russell Freeman Kyle Kurtz Richard Hess Drew Nys Allen Zaudtke Aaron Evans

    My Merit Badges

    2021 Partner
    2021 Camper
    2021 Camp Counselor
    2021 Membership
    2020 Session Creator
    2020 Partner
    2020 Patron Camper

    Don't miss another opportunity to collaborate.
    Follow @clark Today