OUR MISSION
Neutral infrastructure for the private real estate market
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An agent-only network for pre-MLS listings — built across brokerages, not inside one. Premarket connects real estate professionals through transparent, member-controlled listing infrastructure.
Member agents
500+
Listing volume
$4+ billion
Active buyers
2,500+
Matches made
10,000+
Brett Helberg
Founder & CEO
Brett Helberg is the founder and CEO of Premarket. He launched the company after seeing firsthand how fragmented and relationship-driven the private real estate market remained, even for top agents...
Mia DiGennaro
Growth Specialist
Mia DiGennaro is a member of Premarket’s growth team. Before joining Premarket, Mia worked in outbound sales at Family First Life, where she managed client outreach, scheduling, and follow-up ...
Oliver Wenner
Chief Operating Officer
Oliver Wenner joined Premarket in 2025 through the merger of his previous startup, Maklare AI, into the company. Maklare’s AI-powered buyer-listing matching technology now supports Premarket’s ...
David Stephens
Growth Specialist
David Stephens is a member of Premarket’s growth team. Before joining Premarket, David led strategy, operations, and marketing initiatives for a Boston-based nonprofit. He recently graduated ...
Aaron Guyett
Chief Technology Officer
Aaron is a seasoned entrepreneur who has founded & raised money at multiple companies as both CEO and CTO. He was previously at Encore Capital and Sharp Healthcare leading Risk and Compliance...
