Thoma Bravo LLC has agreed to acquire a majority stake in Lehi, Utah-based DigiCert, a provider of trusted certificate management solutions. The seller is TA Associates, which will retain a minority stake in DigiCert as part of the transaction. No financial terms were disclosed. Jefferies LLC provided financial advice to Thoma Bravo while Evercore did likewise for DigiCert. Jefferies Finance LLC and Fifth Street Asset Management provided the financing for the deal.