Protos Security Expands Portfolio with Off Duty Services Acquisition
Security Services Holdings LLC (dba Protos Security), the leading tech-enabled managed services security guarding provider in North America, announces that it has acquired Off Duty Services, Inc. and its U.S. and Canadian subsidiaries (ODS).
Protos Celebrates International Security Officers Day

For Protos Security, International Security Officers Day, recognized on July 24 each year, is one of the most important days of the year. It’s a chance to recognize the security officers who are working on the front lines, keeping us safe every single day.
Protos Security Announces the Strategic Acquisition of Mulligan Security
Security Services Holdings, LLC (dba Protos Security), the leading tech-enabled security services company in North America, announces that it has acquired Mulligan Security. Protos is a portfolio company of Southfield Capital. Mulligan’s founder and senior leadership team will remain in their existing roles post-close.
Protos Security Hires Peter Platten as SVP of Sales & Strategic Accounts
Security Services Holdings, LLC (dba Protos Security), the leading tech-enabled security services company in North America, announces an expansion of its leadership team with the hiring of Peter Platten as Senior Vice President of Sales & Strategic Accounts.
Protos Security Celebrates National Entrepreneur’s Day

The Protos team has plenty to celebrate today with four exceptional founders. Two pairs of friends started two competing businesses that joined forces in 2019. Their combined knowledge – and cumulative 85 years of security experience – has led Protos to become a security industry leader with a network of 4,000+ security vendors.
Protos Security’s Kris Vece Featured on TalkLP.com
TalkLP.com Podcast Hosts Amber Bradley and Dave Thompson launch their first episode in a new series called, “Real Solutions to Real Problems.” This industry is chock full of valuable solution providers that can help us solve real challenges.
Protos Security and Southfield Capital Announce the Strategic Acquisition of Security Resources
Southfield Capital, a premier lower middle market private equity firm, announced today that Protos Security (“Protos”), a tech-enabled managed security services provider, has completed its strategic acquisition of Security Resources (“SRI” or the “Company”), a leading US-based managed security services and direct guard solutions provider.