SUMO Heavy Industries, Bart Mroz and crew building new e-commerce development firm
If Bart Mroz was pushed to give you a piece of advice, it just might be to limit yourself.
The founder of the recently re-branded SUMO Heavy Industries says a lot of firms doing web work get caught up in trying to do too many things and come up short doing them well.
“We started as a web development company that did all kinds of things like brochure sites and app development for different clients,” Mroz tells Technically Philly. “Then we decided to only do e-commerce work — the best decision that we made.”
In March 2008, Mroz co-founded round3media and by last November, Mroz had learned his greatest skills were focusing strictly on e-commerce site development. After his two partners in round3 wanted to work on different projects, Mroz started anew, launching e-commerce heavy SUMO with new partner Robert Brodie and creative director John Suder.
With a new name and a freshly announced, local client, Mroz is — and forgive us for this — entering the dohyō and fighting to build his company’s name as the top e-commerce development company in the region.



















