Service Parts & Supplies

SERVING St. Louis, MO

We'll Help You Find THE Part

Since 1935, Thompson Supply Company has been committed to serving the greater St. Louis area. As a family-owned and operated business based out of St. Louis, we specialize in providing tailored solutions for both residential and commercial clients. With deep industry expertise, we offer a wide selection of OEM and aftermarket parts, as well as a variety of MRO supplies. Our team excels at sourcing parts from numerous manufacturers, ensuring your product needs are met quickly and cost-effectively. Contact us today at 314-423-3700 to learn more about our services.

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Quality Brands:

  • Our Quality Brands

    • Alco
    • Anaconda
    • Aprilaire
    • Bussman
    • Conbraco
    • Danfoss
    • Diversitech
    • DuPont / Chemours
    • Emerson
    • Franklin Electric
    • General
    • Hart & Cooley
    • Hoffman
    • Honeywell

  • More Brands

    • ICM
    • Invensys
    • J.W. Harris
    • Lau Industries
    • Little Giant
    • Lucas-Milhaupt
    • Magnaflex
    • Malco
    • Monti & Associates
    • Motors & Armatures
    • Mueller
    • Nu-Calgon
    • Paragon
    • Parker

  • More Brands

    • Penn-Johnson
    • Pro1 IAQ
    • Purolator
    • QuestVapco
    • Ranco Controls
    • Refrigeration Research
    • Robertshaw
    • Rubatex
    • Schaeffer
    • Sealed Unit Parts
    • Tjernlund
    • Trion
    • Uni-line
    • White Rodgers