Representing a broad spectrum of environmental and engineering experience in North America and overseas, Sigma Engineering, Inc. (SEI) provides a full range of services to industry, municipalities, government agencies, and the financial/development community. SEI has environmental and safety professionals with a combined experience of over 150 years.

Sigma Engineering, Inc.
2101 Auto Center Drive, #150
Oxnard, CA 93036-8939
Phone: 805.983.6262
Fax: 805.983.4992

Sigma Engineering, Inc.
17139 Bellflower Boulevard, Suite 201
Bellflower, CA 90706
Phone: 562.804.7252
Fax: 562.804.7255