![Daniel Whalen](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>)
Daniel A. Whalen is former President of Whalen & Company, Inc.,one of the subsidiaries of Tetra Tech, Inc. He joined the Board of Directors of Tetra Tech, Inc. upon acquisition of Whalen & Company, Inc. in June 1997.
He is co-founder of First Cellular Group, Inc., The Microwave Group, Inc., Network Building & Consulting, Inc. and Cellular Development Company.
He was Vice President-Operations of American Tele-Services, Inc. and Director of Operations of NYNEX Mobile Services.
| Companies | Position | End |
|---|---|---|
Network Building & Consulting LLC
 Network Building & Consulting LLC Real Estate DevelopmentFinance Provides real estate development services | Founder | - |
| TETRA TECH, INC. | Director/Board Member | - |
Active
Inactive
Listed companies
Private companies
| Private companies | 2 |
|---|---|
Tetra Tech, Inc.
 Tetra Tech, Inc. Engineering & ConstructionIndustrial Services Provides consulting and engineering services | Industrial Services |
Network Building & Consulting LLC
Network Building & Consulting LLC Real Estate DevelopmentFinance Provides real estate development services | Finance |
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