Foley Services has handled DOT compliance, background screening, and drug & alcohol program management since 1992. It's a solid, well-known C/TPA — but its packages are built around bundled annual subscriptions. Oculus is the alternative for carriers who want the same compliance coverage with transparent, pay-as-you-go pricing and modern software.
Foley's strength is a fully managed, hands-off C/TPA relationship with decades of track record. If you want a vendor to run the entire program for you and don't mind annual packaging, Foley is a reasonable choice. Oculus wins on price transparency, speed to start, and integrated driver data. See the deeper comparison in the Foley alternative writeup and Best DOT Compliance Software for Small Fleets.