![Eric Thornburg](data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="%231b1b1b" class="bi bi-person-fill" viewBox="0 0 16 16"><path d="M3 14s-1 0-1-1 1-4 6-4 6 3 6 4-1 1-1 1zm5-6a3 3 0 1 0 0-6 3 3 0 0 0 0 6"/></svg>)
Eric Thornburg
Director/Board Member at
TETRA TECH, INC.
Net worth: 4 M $ as of 2026-05-30
Profile
Eric W.
Thornburg currently serves as Chairman & Chief Executive Officer at San Jose Water Co. since 2018, Director at Tetra Tech, Inc. starting in 2026, and Trustee at Water Research Foundation.
Former positions include Chairman, President & Chief Executive Officer at Connecticut Water Service, Inc. from 2007 to 2017; Chief Executive Officer at The Texas Water Co. from 2017 to 2018; President & Chief Executive Officer at H2O America Land Co. from 2017 to 2018; Chairman at H2O America NE LLC; Non-Executive Chairman at H2O America from 2025 to 2026; Director at Connecticut Water Service, Inc.; Director at Liberty Bank (Middletown, Connecticut); President & Director at National Association of Water Cos.; Vice President-Central Regional External Affairs at American Water from 2004 to 2006; and President at Missouri-American Water Co. from 2000 to 2004.
Education includes an MBA from Indiana Wesleyan University and undergraduate studies at Cornell University.
Known holdings in public companies
| Company | Date | Number of shares | Valuation | Valuation date |
|---|---|---|---|---|
H2O AMERICA 0.18% | 2026-03-23 | 77,221 ( 0.18% ) | 4 M $ | 2026-05-30 |
Eric Thornburg active positions
| Companies | Position | Start |
|---|---|---|
| TETRA TECH, INC. | Director/Board Member | 2026-03-29 |
San Jose Water Co.
 San Jose Water Co. Water UtilitiesUtilities Provides water utility services | Chief Executive Officer | 2017-11-05 |
Water Research Foundation
 Water Research Foundation Water Research Foundation is a non-profit company based in Denver, CO. | Director/Board Member | - |
Former positions of Eric Thornburg
| Companies | Position | End |
|---|---|---|
| H2O AMERICA | Chief Executive Officer | 2025-06-29 |
| CONNECTICUT WATER SERVICE, INC. | Chief Executive Officer | 2017-09-27 |
American Water
 American Water Water UtilitiesUtilities Provides water, wastewater and other water resource management services | Public Communications Contact | 2005-12-31 |
Missouri-American Water Co.
 Missouri-American Water Co. Water UtilitiesUtilities Provides water utility and related treatment services | President | 2003-12-31 |
SJWNE LLC | Chairman | - |
Training of Eric Thornburg
Experiences
Positions held
Active
Inactive
Listed companies
Private companies
Connections
50
1st degree connections
14
1st degree companies
Male
Female
Members of the board
Executives
Linked companies
| Private companies | 14 |
|---|---|
American Water
American Water Water UtilitiesUtilities Provides water, wastewater and other water resource management services | Utilities |
Connecticut Water Service, Inc.
 Connecticut Water Service, Inc. Water UtilitiesUtilities Provides water utility, real estate rental and agent services | Utilities |
H2O America
 H2O America Water UtilitiesUtilities Operates as a holding company which provides water utility and real estate services | Utilities |
Tetra Tech, Inc.
 Tetra Tech, Inc. Engineering & ConstructionIndustrial Services Provides consulting and engineering services | Industrial Services |
Liberty Bank (Middletown, Connecticut)
 Liberty Bank (Middletown, Connecticut) Savings BanksFinance Operates as a state chartered savings bank | Finance |
Missouri-American Water Co.
Missouri-American Water Co. Water UtilitiesUtilities Provides water utility and related treatment services | Utilities |
Indiana Wesleyan University
 Indiana Wesleyan University Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
Cornell University
 Cornell University Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
San Jose Water Co.
San Jose Water Co. Water UtilitiesUtilities Provides water utility services | Utilities |
SJW Land Co.
 SJW Land Co. Real Estate DevelopmentFinance Owns and manages commercial and office buildings | Finance |
National Association of Water Cos.
 National Association of Water Cos. Water UtilitiesUtilities Provides water and wastewater services | Utilities |
Water Research Foundation
Water Research Foundation Water Research Foundation is a non-profit company based in Denver, CO. | |
The Texas Water Co.
 The Texas Water Co. Water UtilitiesUtilities Provides water and wastewater services | Utilities |
SJWNE LLC |
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