Fact Sheet

Size of Firm
25 employees

Year Established
1990 as a California Corporation

Ownership
WEI is an employee-owned company

Corporate Officers
Mark Wildermuth - President/CEO
Joseph LeClaire - Vice President/COO
Andrew Malone - Associate Scientist II
William Leever - Associate Scientist II

Corporate Office
23692 Birtcher Drive
Lake Forest, California 92630
T: 949.420.3030
F: 949.420.4040
www.wildermuthenvironmental.com

Ontario Office
1920 S. Archibald Avenue, Unit E
Ontario, California 91761
T / F: 909.923.4342

Clients
City Agencies
Watermasters
Water Agencies
Law Firms
Private Clients

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