The Kreller Group is a private firm based in Cincinnati, Ohio, specializing in due diligence and global risk compliance. Founded in 1988 by former Dun & Bradstreet analysts, the company provides international open-source intelligence (OSINT) and human intelligence (HUMINT) investigations. Its clients include law firms, government entities, and corporations ranging from small businesses to Fortune 50 companies, with 25% of the Fortune 100 among its clientele. The Kreller Group offers a range of services, including international due diligence for mergers and acquisitions, compliance support for