- May 16, 2023 – Optimum Energy® Q2 Announcements – New Sales Leadership and Hydraulic Model Offering
- May 1, 2023 – Optimum Energy awarded EcoVadis Bronze Medal for 2023 Sustainability
- September 26, 2019 – Optimum Energy Builds Innovation Portfolio with New Patent for Whole-Campus HVAC Optimization
- January 7, 2019 – Optimum Energy and Belimo Technology Licensing Deal Advances Innovative HVAC Solutions
- October 19, 2018 – Optimum Energy Reaches 1 Billion Kilowatt-Hours of Energy Savings
- August 14, 2018 – Optimum Energy Receives Patents for Technologies That Make Smart Buildings Even Smarter
- January 31, 2018 – Optimum Energy Names New President
- August 10, 2016 – OptimumEDGE™ Makes HVAC Energy Efficiency Easy and Affordable
- February 8, 2016 – New OptiCx™ platform Module Boosts HVAC Efficiency
- December 1, 2015 – Optimum Energy Recognizes Columbia University’s Commitment to Energy Sustainability
- September 2, 2015 – Optimum Energy Hires Vice Presidents for Sales & Marketing and Business Development & Strategy
- April 20, 2015 – Optimum Energy Marks Significant Energy and Water Savings on Earth Day 2015
- April 8, 2015 – New Web and Mobile Versions of OptiCx™ Now Available for Optimum Energy Customers
- February 11, 2015 – Optimum Energy Debuts OptiCx™ Dynamic Sequencing
- February 2, 2015 – Optimum Energy Appoints New President and Chief Executive Officer
- January 26, 2015 – Optimum Energy Introduces OptiCx™ Chiller Diagnostics