Day & Zimmermann Named as 2021 Recipient of EEI Prime Supplier Leadership Award

PHILADELPHIA, PA--(May 4, 2021) – Day & Zimmermann (D&Z), the century-old, family-owned provider of construction & engineering, staffing, and defense solutions for leading corporations and governments around the world, has been named as this year’s recipient of the EEI Prime Supplier Leadership Award. This award is presented annually to a prime supplier of an EEI member company who has made impressive strides in diverse supplier utilization and development.

Some of the features that helped distinguish D&Z from this competitive award pool hinged on their enterprise-wide supplier diversity initiative with a dedicated supplier diversity administrator and corporate webpage; defined diversity goals and processes; collaboration and teamwork with diverse suppliers for new projects and implementation of innovative technologies; support of local and national diversity councils; and implementation of an employee recognition program that rewards employees financially for identifying and developing diverse suppliers. 

Over the two-year nomination period, D&Z’s spend with diverse suppliers exceeded $32 million.

“We are honored to be recognized as this year’s recipient of the EEI Prime Supplier Leadership Award,” said Sherry Martin, Vice President of Enterprise Supply Chain. “At Day & Zimmermann, we covet our supplier relationships and strive to build a diverse network of highly-qualified suppliers. We recognize this achievement as another milestone in our continued commitment to supplier diversity which is what strengthens us, our customers, and the diverse communities we serve.”  

The award will be presented to D&Z on May 18, 2021 as part of EEI’s 37th Business Diversity Virtual Conference.   


Founded in 1901, Day & Zimmermann is a family-owned company with a workforce of 41,000 specializing in construction & engineering, operations & maintenance, staffing, security and defense solutions for leading corporations and governments around the world. Operating from more than 150 worldwide locations with 2.4 Billion USD in revenue, Day & Zimmermann is currently ranked as one of the largest private companies in the U.S. by Forbes. Headquartered in Philadelphia, PA, our first work was to develop "Betterment Reports" that helped modernize American factories. Today, we are still in the business of betterment—maintaining the nation's power infrastructure, protecting American freedoms and accelerating innovation around the world. We do what we say®


EEI is the association that represents all U.S. investor-owned electric companies. Their members provide electricity for more than 220 million Americans, and operate in all 50 states and the District of Columbia. As a whole, the electric power industry supports more than 7 million jobs in communities across the United States. In addition to their U.S. members, EEI has more than 65 international electric companies, with operations in more than 90 countries, as International Members, and hundreds of industry suppliers and related organizations as Associate Members.


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