As a small, woman-owned business, Northgate maintains the following certifications:
- U.S. Small Business Administration (SBA)
- Women-Owned Small Business Enterprise (WOBE)
- Certified Small Business Enterprise (SBE) under the following North American Industrial Classification Systems (NAICS) codes:
- 541620–Environmental Consulting Services
- 541330–Engineering Services
- 562910–Environmental Remediation Services
- 541360 – Geophysical Surveying and Mapping Services
- 541370 – Surveying and Mapping (except Geophysical) Services
- 541690 – Other Scientific and Technical Consulting Services
- California Public Utilities Commission (CPUC)
- Women-Owned Business Enterprise (WBE) No. 12070120
- State of California, Department of General Services
- Certified Small Business (SB) No. 26144
Northgate is also certified as a small business by the following entities:
- The State of California General Services Administration
- Alameda County
- The Port of Oakland
- Santa Clara Valley Transportation Authority
- The City of Long Beach
- The Orange County Transit Authority
- The Network, a San Diego County-wide program