Cogstone is a disadvantaged business enterprise and women-owned small business (DBE/WBE).
We offer technical knowledge, savvy, innovative scoping, quality control procedures, and responsiveness to assist clients in meeting project compliance requirements in adherence to federal, state, and local law and regulations. We are certified with major federal, state, and local programs.
Key personnel are certified in all municipalities throughout California that maintain lists.
NAICS codes:
- 541620 Environmental Consulting
- 541690 Other Scientific and Technical Consulting
- 541720 Research and Development in the Social Sciences and Humanities
- 541990 All Other Professional, Scientific, and Technical Services

County of Los Angeles
- Certified Local Business
- Small Business Enterprise
- Disadvantaged Business Enterprise
Gold Shovel Standard
- Certified Contractor
ISNetworld® Member
- Certified Contractor