Monday, April 27, 2026

Contact the Benefit Office

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Benefit Office Information

BeneSys is the Third Party Administrator for your benefit funds.
BeneSys is available to receive your phone call from 7:30 AM C.S.T. until 4:30 PM C.S.T at its St. Louis Riverport, MO office.

St. Louis Riverport Office Address
13801 Riverport Dr.
Suite 501
Maryland Heights, MO 63043
(314) 656-1084 or Toll Free (844) 939-1534

Email: staff@seiulocal1benefits.com

Fax: 314-739-1105

Please click here for directions to the Benefit Fund Office.

To reach various departments please call our main phone number (see above) and simply ask for the appropriate department. For example:

  • Pension
  • Administrative services

And if you do not find what you are looking for above, please call and describe the service you are seeking information about and we will help you find it.