The Foundation is currently making grants in the range of $5,000 to $50,000.

Grants will only be made to  organizations  that are exempt under Section 501(c) (3) of the Internal Revenue Code.  No grants  may be made to individuals.  Applications for grants to be made by our fiscal year ending June 30th, must be received by March 15th. Applications received after March 15th will be considered in the subsequent fiscal year.

If you or someone you know has any questions regarding the Foundation or the application, please contact Kate Byrne at (412) 762-3350  or

Grant applications should be sent to

The Marinus & Minna B. Koster Foundation,  Inc. 
Attn: Kate Byrne
Vice President, Wealth Strategist
Private Foundation Management Services
Tower at PNC Plaza, 3rd Floor
300 Fifth Avenue, 27th Floor
Pittsburgh, PA  15222