President, ready-mix concrete and aggregates company · New Berlin Redi-Mix · New Berlin, Wisconsin
Mary Gumieny Bultman
Mary Gumieny Bultman, president (since 2016) of family-owned New Berlin Redi-Mix founded 1958 by father Richard Gumieny; maternal Kohler family founded Kohler Brothers Sand & Gravel (1921). Not other Bultman/Gumieny relatives in company roles (e.g., Emily Bultman).
Net worth
$3 million+
September 17, 2026
About
Mary Gumieny Bultman is president of New Berlin Redi-Mix, the family concrete company that has poured southeastern Wisconsin since 1958.
Her father, Richard Gumieny, founded the ready-mix business; her maternal grandfather Victor Kohler and great-uncle Edward Kohler started Kohler Brothers Sand & Gravel in 1921—the pit still feeds the modern operation’s aggregates story.
Bultman served as vice president and controller before becoming president in 2016, years after her father’s 1999 death. The Daily Reporter’s 2020 profile frames her as a woman-owned-business leader who steered the firm through the 2008 recession while keeping the family’s distinctive pink-and-blue mixer identity—a color scheme her mother casually green-lit when the first barrels were painted.
Today the company markets commercial foundations and walls alongside residential stamped and colored concrete, presenting every pour as a chance to help contractors finish with confidence from the New Berlin plant that still carries the family name on every mixer.
Companies and affiliations
- New Berlin Redi-Mix
Notable facts
Daily Reporter (Aug. 19, 2020): Mary Gumieny Bultman became president of New Berlin Redi-Mix in 2016 after VP/controller roles; father Richard Gumieny founded the firm in 1958; maternal Kohler Brothers Sand & Gravel founded 1921.
Company about page: family owned since 1958; New Berlin plant; Kohler Pit established 1921.
Daily Reporter: firm described as a certified woman-owned business enterprise in Wisconsin; pink-and-blue mixer colors attributed to founder’s first truck paint choice.
What questions can this profile answer
- What makes Mary Gumieny Bultman notable?
- Mary Gumieny Bultman is president of New Berlin Redi-Mix, the family concrete company that has poured southeastern Wisconsin since 1958. Her father, Richard Gumieny, founded the ready-mix business; her maternal grandfather Victor Kohler and great-uncle Edward Kohler started Kohler Brothers Sand & Gravel in 1921—the…
- What is Mary Gumieny Bultman's estimated net worth?
- Mary Gumieny Bultman's estimated net worth is $3 million+ as of 2026-09-17.