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SIGMA Services, Inc. provides General and Electrical Construction services, Real Estate Support Services, and Facilities Maintenance services. SIGMA is a licensed General Building (Class B) and Electrical (C-10) Contractor in California and is planning expansion of its residential and commercial construction division to Nevada, Arizona and Texas in 2013. SIGMA is a certified MBE, WBE, and SBE as well as an EPA lead-safe certified firm.