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Diane became an EFCG External Consultant after five years as the CEO of Ecovation, a water filtration and processing firm, that she built from $2 million to $50 million in revenues, and sold for $200 million. However, she is best known in this industry for having served for 12 years as CEO of Earth Tech, which grew from $50 million to $1.5 billion in revenues under her leadership.

At EFCG, Diane specializes in strategic advice, leadership development, board of director participation or support, and helping firms achieve long term growth and value appreciation, through marketing strategies and acquisition programs.

Diane also currently serves on the board of directors of several major corporations, universities and charities.  She holds a B.A. and M.A. degrees in journalism from the University of South Carolina, from which she also received their Most Distinguished Alumna award from the College of Journalism.  Diane resides on her ranch in Texas.

Education

FOCUS AREA

Latest Deals

EFCG served as the exclusive financial advisor to Illume Advising on its acquisition by E Source
EFCG Advised the Environmental Division of NewFields Companies on its Agreement to Sell to ERM
EFCG Advises Ulteig on Its Acquisition of Paradigm Environmental
EFCG advised WSP on its planned acquisition of Power Engineers
EFCG advised Tectonic on its investment from Good Springs Capital
EFCG served as the financial advisor to Qualus, a portfolio company of New Mountain Capital LLC, on it's acquisition of Planet Forward Energy Solutions, LLC

Recent Highlights

Scenic Road
Scenic Road
City Sky

Diane Creel

CEO of Earth Tech
CEO of Ecovation

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Diane Creel

Conferences

CEO Conference

September 29 – October 1, 2025

Waldorf Astoria Monarch Beach, CA

CFO Conference

March 4-6, 2026

Four Seasons Hotel, Denver CO

HR Leadership

May 14-16, 2025

JW Marriott Atlanta Buckhead, GA

Rising Leaders Conference

Contact EFCG

To request information

Technology Leadership

June 16-17, 2025

Boston University’s Computing and Data Sciences Conference Center, MA

Sustainability & ESG

December 3-5 2025

Hotel Clio, Denver Cherry Creek

Specialized Forums

Various Dates

Learn more about our Specialized Forums

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