Mazzetti and William Tao & Associates Merger Expands Innovative Engineering Design and Consulting Services, Nationwide

Inc., a global MEP engineering and technology consulting firm, and
St. Louis-based William
Tao & Associates (WTA), multi-disciplinary engineers serving
nationwide clients, have merged. The merged company will retain the
Mazzetti Inc. name.

“As our clients nationalize, they need expertise in close proximity to
their many locations. WTA brings us expertise in the Midwest to better
serve clients in this geographical location,” said Walt Vernon, Mazzetti
CEO. “WTA also brings a similar employee-owned culture, complimenting
that of Mazzetti’s. We highly prioritize cultural fit to ensure a
thriving work environment, yielding better (more innovative) outcomes
for our clients.”

Lisa Sombart, WTA CEO and President, will be a Mazzetti Principal and
lead the St. Louis Team as part of the Mazzetti East Region.

The combined firm will have a staff of 206 and 11 locations: Irvine,
Sacramento and San Francisco, Calif.; Denver, Colo.; Atlanta, Georgia;
St. Louis, Missouri.; Portland, Ore.; Nashville, Tenn.; Dallas, Texas;
Seattle, Wash.; and Bengaluru, India.

“WTA is a recognized leader in innovative engineering and
energy-efficient building systems with a diverse award winning portfolio
in healthcare, labs, and higher education,” said Sombart. “This merger
will enhance our existing track record of quality, award winning design,
while furthering our client reach.”

For more than 55 years, Mazzetti has consulted sophisticated nationwide
clients in the planning, design, and operations for technologically
advanced, energy-efficient facilities. The addition of WTA will enable
Mazzetti to further this mission, particularly in the Midwest.

About Mazzetti

Mazzetti’s vision is to make the world a better place by creating better
environments. Mazzetti provides world-class MEP engineering and
technology consulting, tackling complex, energy-intensive buildings,
specializing in Healthcare.

As an employee-owned Benefit Corporation with over 55 years of service
in the industry, Mazzetti’s positive impact spans 20 countries around
the globe. Through the firm’s unique vision, Mazzetti delivers
technologically advanced buildings rooted in local culture, climate and

About William Tao & Associates

William Tao & Associates (WTA) is an employee-owned, multi-disciplinary
engineering firm committed to innovative solutions and high performing
energy-efficient buildings.

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