Graham Partners has completed a single-asset continuation fund transaction for Gatekeeper Systems, a provider of retail loss prevention products. The continuation fund is managed by Graham Partners, with additional investment from HarbourVest Partners.
The Gatekeeper continuation fund transfers ownership of the company from Graham’s fifth buyout fund to the continuation vehicle and Graham’s sixth buyout fund, Graham Partners VI LP, which closed in July 2024 with over $1.8 billion in capital commitments.
The transaction, anchored by lead investor HarbourVest Partners, also included participation from existing Graham limited partners and other syndicate investors.
Gatekeeper provides proprietary IoT-enabled loss-prevention shopping cart products that are used to minimize merchandise loss and reduce asset and labor expenditures. The company’s products use radio frequency and locking wheel technology to reduce asset shrinkage from both cart-based shoplifting and shopping cart loss. Gatekeeper’s flagship and patented Purchek system generates approximately 55% of the company’s revenue through recurring models.

Gatekeeper’s customers include large-format retailers, including 48 of the top 50 cart-based retailers in North America. The company was founded in 1998 by Christopher Bell and today is led by CEO Robert Harling, with a headquarters near Los Angeles in Foothill Ranch, California.
Graham Partners acquired Gatekeeper Systems in October 2019 from Hammond, Kennedy, Whitney & Company. Under Graham’s ownership, the company has expanded globally, streamlined operations, and implemented a multinational supply chain, resulting in over 480% organic EBITDA growth.

In January 2025, Gatekeeper acquired FaceFirst, a Los Angeles-based developer of AI-enabled facial recognition technologies used to enhance retail loss prevention and safety measures. Graham believes Gatekeeper remains early in its global penetration phase, with considerable room for expansion given the company’s current 6% global market penetration.
“With Gatekeeper, we saw an opportunity to partner with a business that we believe is supporting loss prevention efforts at retailers globally,” said Rob Newbold, a managing principal at Graham Partners. “We are proud to have supported the growth of such an innovative company and look forward to working alongside Gatekeeper through this next phase.”
Philadelphia-based Graham Partners acquires companies with EBITDA between $5 million and $50 million and will invest in smaller companies as add-on acquisitions to existing portfolio companies. The firm is sponsored by the Graham Group, an industrial and investment concern with interests in plastics, packaging, machinery, building products, and outsourced manufacturing. Graham Partners was founded in 1988 and is headquartered in Philadelphia.
“We are excited to partner with Graham Partners and the entire Gatekeeper team to support the company’s continued success,” said Nick Bellisario, a managing director at HarbourVest. “This transaction demonstrates our approach to the GP-led secondary market whereby we seek to partner with experienced general partners to invest in high-quality businesses that are poised for continued future growth.”
Boston-headquartered HarbourVest has more than 1,200 employees, including more than 190 investment professionals across Asia, Europe, and the Americas. As of March 2024, the firm had $143 billion in assets under management across a range of strategies including venture capital, buyout, mezzanine debt, credit, and real estate.
Evercore was the lead financial advisor on the transaction, with Harris Williams and Piper Sandler serving as co-advisors.
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