Banking on a Mission

purpose-driven banking.

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Why does M1 Bank in Des Peres have a 4,000 year old olive tree trunk in its lobby? Hope, renewal, and a hollowing out to produce new fruit – it’s all part of the beautiful story told by The Thread STL.


The best
possible returns.
The highest
possible impact.

M1 Bank provides market-leading returns through expert investment in quality affordable housing and renewable energy.

About Us


President's Day

Our locations will be closed February 20th, 2023 in observance of President’s Day. We will resume normal working hours on February 21st, 2023.