Custom Insurance Services would not be what it is today without our customers – or our partnerships. In the local community and at the state and national levels, our relationships with the business community and the industry allow us to serve you better.

The Independent Insurance Agents & Brokers of America, Inc., also known as the Big “I"® or IIABA® is a national trade association that equips members with tools, resources, advocacy and support, to maintain excellence in business and customer service.
Keystone is a network of outstanding independent insurance agencies, spanning 16 states, 300+ agencies and over $4 billion in insurance premiums.
The Jefferson County Growth Association (JCGA) provides coordination and professional leadership to promote and support new and existing growth throughout Jefferson County, Missouri.