In December 1997, Kroll Associates merges with O'Gara-Hess & Eisenhardt, the world's leading manufacturer of armored vehicles, in an $89 million all-stock transaction. The combined entity, named The Kroll-O'Gara Company, begins trading on NASDAQ under the ticker "KROG." The merger represents a pivotal moment in the evolution of private intelligence firms from boutique investigative practices into diversified security conglomerates offering the full spectrum of intelligence and protection services.
O'Gara-Hess & Eisenhardt brought physical security capabilities -- armored limousines, Humvees, and executive protection vehicles used by heads of state, corporate executives, and military forces worldwide. Kroll brought investigative intelligence, risk consulting, and due diligence capabilities. The logic of the combination was straightforward: a single firm could assess threats (Kroll's expertise) and provide physical protection against them (O'Gara's products), creating what was intended to be the world's premier integrated security and intelligence operation.
The merger also took Kroll public for the first time, transforming a private partnership into a publicly traded corporation with obligations to shareholders. This shift had profound implications for the intelligence privatization story: once listed on NASDAQ, Kroll's growth imperative was no longer simply about serving clients well but about quarterly earnings, market capitalization, and investor expectations. The financialization of private intelligence had begun.
Kroll-O'Gara embarked on an acquisition spree beginning in 1998, purchasing forensic accounting firm Lindquist Avey Macdonald Baskerville (Toronto), surveillance firm InPhoto (Chicago), investigation firm Fact Finders Ltd. (Hong Kong), drug testing company Laboratory Specialists of America (Louisiana), and background investigation firm Schiff & Associates (Texas). Each acquisition added capability and geographic reach, building the diversified intelligence-security platform that Marsh & McLennan would eventually acquire for $1.9 billion.
The cultural clash between Kroll's "esoteric, behind-the-scenes maneuvering" and O'Gara's hardware-focused business ultimately led to the partnership's dissolution. In August 2001, the O'Gara vehicle armoring operations were sold to Armor Holdings, and the company was renamed simply Kroll Inc. But the merger had served its purpose: it proved that private intelligence could be packaged, scaled, and sold on Wall Street -- a lesson the industry would not forget.