Donner celebrates 50 years at PROSOCO

Words: Al MorrisPROSOCO’s VP for Operations Keith Donner marked 50 years of employment with PROSOCO in February. Donner studied business and accounting at Kansas City, Kansas, Community College before joining PROSOCO in 1963.

“I started in the accounting department,” Donner says. “But in those days, everyone did everything, so I also loaded trucks, filled containers and did anything else that needed to be done.”

Donner joined the Army Reserve in 1965, serving a year’s active duty in Vietnam as truck driver with the 842nd Quartermasters. He returned to PROSOCO when his military tour of duty ended.

Since joining the PROSOCO, Donner has served as purchasing agent and head of accounting. He helped open manufacturing plants and distribution centers in Georgia, New Jersey and Ontario. Donner also helped PROSOCO develop many of its restoration cleaning formulas, including a poultice powder for removing rust stains. Restoration cleaning projects he’s proudest of having been involved with include the Chrysler Building and Grand Central Station.

Donner has served as PROSOCO’s VP of operations since the late-1970s. Semi-retired now, he still works several days a week overseeing real estate and tax issues, and serving as a company mentor and historian.
2026 Masonry Alliance Program Spots Now Open To All Suppliers
November 2025

The Mason Contractors Association of America (MCAA) has officially opened all remaining spots for its 2026 Masonry Alliance Program (MAP) to the public. Following the renewal period for current partners, a limited number of positions are now available.

The QUIKRETE Companies Continues Its Multi-Tiered Involvement in the 2026 Masonry Alliance Program
November 2025

The Mason Contractors Association of America (MCAA) is happy to announce that The QUIKRETE Companies will reaffirm its significant, multi-level commitment for the 2026 Masonry Alliance Program.

Precision, Performance, and Innovation for Masonry Professionals
November 2025

For many masons and contractors, EZG is synonymous with reliable, durable, and efficient equipment. Tools like the Mud Hog Mixer, the Grout Hog Material Delivery System, and Hog Pumps have become staples on job sites across the country. But behind every p

AVAILABLE NOW: The GEORGE Wall Evaluation Hardware and Software Kit
November 2025

We're thrilled to announce the launch of the GEORGE Wall Evaluation Kit, a revolutionary all-in-one system built specifically for the entire masonry industry.