Circle Tool Supply is an ESCO that has been helping businesses of all sizes run their organizations better, smarter and more efficiently than ever before. From large industrial complexes to commercial, healthcare and government facilities, CTS’s experienced staff can help you manage each and every aspect of your lighting retrofit project.


  • Maximize energy savings, incentives and utility rebates
  • Improve the quality of your work environment
  • Meet organizational energy objectives
  • Verified energy savings that result in an improved bottom line


Whether you’re a CFO looking to contain costs or a facility manager dedicated to achieving a more sustainable, valuable asset for your clients, CTS works with you to develop a customized lighting retrofit solution tailored to your organization’s specific needs.  We work with you and our resources at Optimum Philips to ensure the turnkey project you receive is an industry expert’s most viable solution at the best value.


CTS is committed to helping our clients turn their facilities into places that are more cost-efficient, environmentally responsible places to do business. We’ve based our company on the premise that lighting retrofit projects that were properly marketed, engineered and managed would create satisfied customers. Working closely with Optimum Philips, CTS enjoys the reputation across the industry as the leader in high-quality energy efficiency lighting and the committed service, competitive pricing and know-how that comes along with it.



  • Full project management – From initial concept and design to installation and completion, we’re there with you every step of the way, managing the project so you don’t have to – on time, on budget and without disruption.
  • Comprehensive and accurate energy audit – The cornerstone of every successful lighting project begins here and CTS has expertise.
  • Less Maintenance & less cost means an improved bottom line – The latest lighting technology dramatically reduces electricity consumption slashing utility bills by up to 70% and provides up to an additional 50% in lamp life which means lower replacement costs, less disposal reduced maintenance requirements freeing up valuable manpower. That means lower expenses and an improved bottom line.
  • Enhanced asset values – According to the Department of Energy, lighting accounts for over 40% of all utility costs for the average commercial building. CTS’s lighting retrofits dramatically reduce that cost and make your facility more marketable, sustainable and efficient as you head into the future.
  • Better productivity – Studies show that lighting can have a dramatic impact on employee productivity. Not only can we help your organization save money on utility cost, but better lighting can help your employees become more productive as well!



CTS has successfully completed projects for a variety of businesses, institutions and government agencies across virtually all facility types under an array of conditions. Clients include Fortune 500 companies, prominent educational institutions, manufacturers, retailers, parking garage and cold storage operators, government facilities and school districts across North America. With its customer-centered approach, unparalleled industry experience in Optimum Philips unmatched know-how and innovative thinking, CTS continues to be a leader in energy-efficient upgrades and lighting retrofit projects.