Brentwood Services Administrators, Inc. Share: InsuranceInsurance Brokerage Brentwood Services Administrators, Inc. Visit Website 3115 Northington Court Florence, AL 35630 (615) 263-1300 About Map About An independent, employee owned insurance risk solutions firm providing a wide range of services, from third party administration to insurance brokerage. We manage claims, provide loss control or What's Nearby? Distance: 5 10 15 20 25 50 mi.