John A. Barton Insurance Agency
- AAA
- AIG
- American Modern Insurance Group
- American Reliable
- AXA
- Brighthouse Financial
- Cincinnati Insurance Companies
- Citizens
- CNA
- Foremost
- Global Atlantic
- Hagerty
- John Hancock
- Legal & General
- Lincoln Financial Group
- MAIPF
- MassMutual
- MetLife
- Michigan Basic
- Michigan Ins.
- Mutual of Omaha
- National Flood Insurance Program (NFIP) / FEMA
- Nationwide
- North American Company
- Pacific Life
- Penn Mut.
- Principal
- Progressive
- Proper Ins.
- Protective Life
- Prudential
- Regency Grp.
- RLI Corp.
- SBLI
- Securian
- State Auto
- Symetra
- Transamerica
- Travelers
- US Assure
- USG
- Vacant Express
- Cynthia Barton Spencer, LUTCF, CSA, Agency Owner