About Sparton Capital
Operators
backing operators
Sparton Capital is a boutique investment platform built on operational experience, structured capital, and a transatlantic view of company-building.
Founder and CEO
Alex Seleska
Sparton Capital · Sparton Ventures
Alex Seleska is the founder and managing partner of Sparton Capital and Sparton Ventures, a Texas-based boutique investment platform focused on early-stage venture and private equity opportunities in energy technologies, computing and digital infrastructure, wellness, and other critical real-economy sectors.
An exited founder, Alex built and sold a SaaS business in the UK before transitioning into full-time investing, where he now originates, structures, and syndicates deals alongside a network of family offices and private investors. His work spans vertical farming, mining, cybersecurity, advanced manufacturing, and infrastructure-heavy projects, where he often acts as a hands-on partner to founders and management teams.
Born in the United States and raised primarily in England, Alex brings a transatlantic perspective to capital formation and company-building, combining operational experience, structured capital solutions, and a pragmatic, operator-led approach to supporting entrepreneurs and emerging managers.
Our team
Our Team
Our approach
How we build value
Operator-led
We have built and sold companies ourselves. We partner as hands-on operators — supporting founders and management teams beyond the cap table.
Structured capital
We originate, structure, and syndicate deals with flexible instruments, aligning incentives across founders, family offices, and private investors.
Transatlantic perspective
Rooted in the US and shaped in the UK and Europe, we bridge markets to unlock capital formation and cross-border company-building.
Get in touch
Building something in the real economy?
Whether you are raising capital or looking to invest alongside us, we would like to hear from you.