We combine deep technical expertise with engineering discipline to build and run profitable software companies.
"True independence comes from software that pays for itself. We build profitable products so we can keep building new ones on our own terms."
Recursive Capital builds software businesses and runs them for the long term. Profits from the products we operate pay for the engineering, product development and marketing behind the next one, so the work sustains itself.
This recursive cycle, build, grow, reinvest, grants us structural independence. Our companies grow on their own revenue, which frees us to focus entirely on long-term value creation and the craft of building things well.
We believe small, capable teams can build systems that generate value continuously. We rely on automation to do the heavy lifting once an idea is proven, and we protect the ideas that matter with a disciplined patent strategy.
Sidney is the founder and CEO of Recursive Capital. A research scientist by training, he earned his doctorate in Molecular and Systems Pharmacology from Emory University before turning to software. In 2004 he founded On Call Central, now a leading automated communications platform for medical practices, and has since gone on to build Estate Logic and SciMiner.
At Recursive Capital, Sidney leads product, engineering and operations across our companies, and their intellectual property. He lives in Northern California with his wife and four children, and is a licensed private pilot.
Barbara leads marketing across the Recursive Capital portfolio. She turns data into practical marketing plans spanning paid search, social media, display advertising, website strategy, and lead generation, helping each company find, understand, and connect with its customers while keeping a unified brand.
She holds a Bachelor's degree in Business Administration and Marketing from the Florida Institute of Technology, and lives in Tampa, Florida, with her husband and their two children.
Krasimir has led software development teams for more than 20 years. As Managing Director of Propel IT Ltd., he has overseen complex software projects for clients across Europe and the United States, balancing technical execution with business requirements.
He holds an M.Sc. in Information Technology from the University of Ruse and advises on product architecture and engineering direction.
A seasoned patent attorney with 16+ years of experience in intellectual property law, Kevin has built and managed patent portfolios for clients ranging from Fortune 500 companies to early-stage startups, spanning AI, avionics, consumer products, medical devices, and SaaS platforms.
Recognized by Best Lawyers in America: Ones to Watch (2025) and Law Leaders (2024), he ensures core innovations are protected and strategically positioned.
