• Business & Services

  • Business Lines

    • Residential Retrofit
    • New Construction
    • Heat/Cooling (HVAC)
    • Appliance Recycling
    • Clean Energy Markets

  • Business Services

    • Program Management
    • Policy & Research
    • Certification Services
    • Applied Building Science
    • Strategic Marketing
    • Customer Contact Centers

  • Case Studies

    • Program Design
    • Appliance Recycling
    • Clean Energy & Renewables
    • Training
    • Public Policy
    • Strategic Marketing
    • Communications & PR
    • Certifications
    • Consulting & Research

  • Clients

  • Partners

    • Contractors & Energy Auditors
    • Builders & Architects

  • Strategic Alliances

    • Industry Partners & Trade Associations
    • Strategic Alliances & Coalitions

• For Consumers

  • Your Home

    • Home Assessments
    • Rebates/Tax Credits
    • Electric & Gas Usage

  • Take Action

    • Save Quick
    • Carbon Footprint
    • Learn the Lingo

  • Clean Energy

    • Solar
    • Wind
    • Hydro
    • Geo-Thermal
    • Landfill Gas/Methane

  • Resources & Links

• About Us

  • Our History

    • Timeline
    • Awards

  • Our People

    • Executive Leadership
    • Board of Directors

  • CSG Map

  • Offices

    • Headquarters
    • Midwest
    • New England
    • Mid-Atlantic
    • Pacific Northwest
    • Southeast
    • West/Southwest
    • Customer Contact Centers

  • Contact Us

• Career

  • Job Opportunities

  • Benefits

• Press and Events

  • News & Media

    • Archives

  • Press Releases

    • Archives

  • Press Kit & Contacts

  • Calendar of Events

    • Archives

Offices

CSG operates 20+ offices across the U.S. We promote a very collaborative work environment that reflects our company culture. We are always looking for opportunities to optimize our own energy efficiency and use environmentally-sensitive products.

• HEADQUARTERS
  Based in Westborough, MA, this office is our hub for various central services.
  
  
• NEW ENGLAND
  In addition to our Massachusetts Headquarters and Fall River Customer Center, we have a small office in Maine.
  
  
• MID-ATLANTIC
  We operate offices throughout New York, and in Iselin, New Jersey.
  
  
• MIDWEST
  Our offices in the Midwest include several in Illinois, plus Wisconsin, Iowa, and Ohio.
  
  
• PACIFIC NORTHWEST
  The Pacific Northwest is served by offices in Portland, OR and Seattle, WA.
  
  
• SOUTHEAST
  Our office in Nashville, Tennessee serves multiple states, and we have a small office in Louisville, Kentucky.
  
  
• WEST/SOUTHWEST
  This region has multiple offices in California and Arizona.