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Membership Eligibility & How to Join

Bank MembersWhen You're a Member - You're an Owner

Membership Policy

Mainstreet Federal Credit Union is a not-for-profit, cooperative financial institution that provides services to the individuals who join it - its members.

How to Join

  1. Simply qualify for membership.
    Membership in this Credit Union is open to any person living or working in the greater Kansas City Metropolitan Area, made up of the following counties in Kansas: Leavenworth, Wyandotte, Johnson, Douglas, Miami, Franklin and Linn; and the following counties in Missouri: Platte, Clinton, Caldwell, Clay, Ray, Jackson, Lafayette, Cass and Bates. Membership is also open to organizations or businesses located within said counties.
  2. Open a Share (Savings) Account with a minimum balance of $5 at any one of our convenient full-service branches. IMPORTANT INFORMATION ABOUT PROCEDURES FOR OPENING A NEW ACCOUNT :To help the government fight the funding of terrorism and money laundering activities, Federal law requires all financial institutions to obtain, verify, and record information that identifies each person who opens an account. What this means for you: When you open an account, we will ask for your name, address, date of birth, and other information that will allow us  identify you. We may also ask to see your driver’s license or other identifying documents.
This membership gives you the right to a full range of financial services and a vote in electing the Board of Directors who set the overall direction of the Credit Union.

Once you join Mainstreet Credit Union, members of your family are eligible for membership. This includes your parents, children, brothers, sisters, grandparents and grandchildren.

"Once a member - always a member" regardless of where you live or work.

Membership at Mainstreet Credit Union offers you access to a full range of quality financial products, including:

  • Savings Accounts
  • Checking Accounts
  • High-Yield Investment Accounts
  • Convenience Services
  • Consumer and Real Estate Loans
  • MEMBERS Financial Services
    (investment and insurance services)

In addition to these low-cost financial services, the staff of Mainstreet Credit Union strives to provide each member with extraordinary service - service befitting an owner of a financial institution.

Great Rates - Great Service!


Select Employee Groups, or SEGs, are companies that have elected to offer the benefits of Mainstreet Credit Union to their employees. Membership costs nothing to the employer.

How will your company benefit by offering Credit Union membership?
Today's tight job market allows individuals to be selective. The value of a company's benefits package can be a deciding factor.

How employees benefit
National surveys show that Credit Unions charge lower fees for many services and provide better service to consumers than other financial institutions. Credit Unions also help build better lives by providing consumer education, a safe place for saving and access to loans at reasonable rates. Payroll Deduction and Direct Deposit are two examples of the many time-saving services available. A financially-stable employee is a happy and long-term employee.

How do employees join and/or get Mainstreet Credit Union information?
Employees can open Share Accounts during an open enrollment on-site at the company or stop by any one of our convenient branch offices. A Business Development Representative can make presentations to employees, host an open enrollment, and provide print marketing materials - paycheck stuffers, brochures, posters, and New Hire Information Pages for orientation packets, all at no cost to the employer.

The following is a list of current Select Employee Groups now offering this FREE benefit to their employees:

Mainstreet Select Employee Groups

Amcor PET Packaging

Bishop Meige

Bishop Ward High School

Blue Valley Schools

Brookridge Country Club

Bruce Smith Drug

Burke, Inc.

Bushnell Outdoor Products

Business Temp. Serv. Inc.

C.H. Guenther & Sons, Inc.

City of Bonner Springs

City of Edwardsville

City of Gardner

City of Leawood

City of Lenexa

 City of Merriam

City of Mission

City of Olathe

City of Prairie Village

City of Shawnee

City of Westwood

 Coca Cola


 Consolidated Container

 Consolidated Fire Dist. #2

Corridor Group


Cramer Products

Crawford Sales

Custom Lawn & Landscape

Delmar Gardens--Lenexa

Delmar Gardens--OP

Desoto Schools

Easton - USD 449

Eskridge, Inc.

Fire District #1 - Jo. Co. KS

Free State Brewery

Garden Terrace at O. P.

Gardner Schools - USD 231

 GE Consumer Finance

Gear For Sports

Gill Studios

Green Company, The


Heartland Spine & Spec. Hosp.

Hermes Landscaping

Hilton Hotels

Hisonic, Inc.




Indian Meadows Nursing Ctr

Industrial Bearing & Trans

Inficon EDC, Inc.

ITW Dymon, Inc.


Johnson County Gov. Employees

 Johnson County Parks & Rec

K. C. Orthopaedic Institute

Kansas City Aviation Center

Kansas City Concrete Pipe

Kansas City Women’s Clinic

Layne, Inc.

Leavenworth USD 453

Lee Company

Lockton Companies

Long Motor Corp

 Maranatha Academy

Marley Cooling Technologies

 McCray Lumber

Meadowbrook Rehab. Hospital

Mega Circuits

Metro-Plex Info Systems

Mid America Nazarene University

Mid-America Rehab

Midwest Concrete Systems

Midwest Office Technology

Milburn Country Club

Numerical Control Support

 Olathe Medical Center

Olathe Schools

Pace Analytical

Packaging Products Corp, LLC

Penton Media


Personal Marketing Co., The

 PPS, Inc.

Preco Industries


Robbie Manufacturing

 Royal Terrace Nursing & Rehab

Shasta Beverages

Shawnee Mission Medical Center

 Shawnee Mission Schools

SKC Electric

Skillpath, Inc.

Smith & Loveless, Inc.

Southwest Steel Fabricators, Inc.


Spring Hill Schools

 St. Thomas Aquinas-OP

Steves Precision Dental Lab

Stouse, Inc.

 Strasser Hardware

Suburban Lawn & Garden

 Swiss RE

 Sysco Food Service of KC

Thermo Fisher Scientific

TradeNet Publishing

Trans Am Trucking

Turner - USD 202


Unified Government Employees

 Unilever Best Foods

Union Machine & Tool Works, Inc.

United Parcel Service

Vertis, Inc.

Vestcom New Century

Victorian Paper Co.

Villa St. Francis

Villa St. Joseph