{"id":2203,"date":"2023-09-08T14:02:20","date_gmt":"2023-09-08T14:02:20","guid":{"rendered":"https:\/\/esgwp.wpengine.com\/?page_id=2203"},"modified":"2025-11-17T15:03:28","modified_gmt":"2025-11-17T15:03:28","slug":"history","status":"publish","type":"page","link":"https:\/\/energysystemsgroup.com\/history\/","title":{"rendered":"History"},"content":{"rendered":"\n<h2>\n\t\t\tOur History\t<\/h2>\n\t<p>Building on a Legacy of Practical Innovation<\/p>\n<h2>\n\t\t\tForging lasting partnerships with our clients to solve their toughest energy and infrastructure challenges isn&#8217;t just something we do.\t<\/h2>\n\t<p><strong>It&#8217;s what we&#8217;ve always done.<\/strong><\/p>\n\t<p>From our earliest days as an energy service company (ESCO), we&#8217;ve been helping our clients build a brighter tomorrow.<\/p>\n<h2>\n\t\t\tOur roots in collaborative consulting run deep. \t<\/h2>\n\t<p>We were founded in 1994 with a vision to help our clients achieve their energy efficiency, resiliency, infrastructure, and sustainability goals. From the start, we set ourselves apart in our approach as a partner and advocate for our clients.<\/p>\n<p>&nbsp;<\/p>\n<p>We&#8217;ve grown substantially since then in terms of capabilities, projects, and people.<\/p>\n\t\t\t\t<img decoding=\"async\" src=\"https:\/\/energysystemsgroup.com\/wp-content\/uploads\/2023\/09\/IMG_0366-scaled.jpg\" alt=\"IMG_0366\" itemprop=\"image\" height=\"1707\" width=\"2560\" title=\"IMG_0366\" onerror=\"this.style.display='none'\" loading=\"lazy\" \/>\n<h3>\n\t\t\t400+\t<\/h3>\n<h2>\n\t\t\tEmployees\t<\/h2>\n<h3>\n\t\t\t48\t<\/h3>\n<h3>\n\t\t\tStates we&#8217;re licensed to work in\t<\/h3>\n\t<p>Plus Washington D.C. and the U.S. Virgin Islands<\/p>\n\t<p>But through it all, our commitment<\/p>\n<p>to create a more energy-sustainable<\/p>\n<p>future has remained true.<\/p>\n<h2>\n\t\t\tWe are a leader in the industry because we are and have always been passionate about helping our clients make their communities safer, more efficient, and more resilient.\t<\/h2>\n\t\t\t\t<img decoding=\"async\" src=\"https:\/\/energysystemsgroup.com\/wp-content\/uploads\/2023\/08\/Regional-office2-crop-scaled.jpg\" alt=\"Regional office2-crop\" itemprop=\"image\" height=\"1635\" width=\"2560\" title=\"Regional office2-crop\" onerror=\"this.style.display='none'\" loading=\"lazy\" \/>\n\t\t\t\t<img decoding=\"async\" src=\"https:\/\/energysystemsgroup.com\/wp-content\/uploads\/2023\/09\/IMG_4026-768x1024.jpeg\" alt=\"IMG_4026\" itemprop=\"image\" height=\"853\" width=\"640\" title=\"IMG_4026\" onerror=\"this.style.display='none'\" loading=\"lazy\" \/>\n\t\t\t\t<img decoding=\"async\" src=\"https:\/\/energysystemsgroup.com\/wp-content\/uploads\/2023\/09\/NASA_crew_at_JSC.jpg\" alt=\"_NASA_crew_at_JSC\" itemprop=\"image\" height=\"680\" width=\"1024\" title=\"_NASA_crew_at_JSC\" onerror=\"this.style.display='none'\" loading=\"lazy\" \/>\n<h2>\n\t\t\tA Timeline of Growth\t<\/h2>\n\t\t\t\t<img decoding=\"async\" src=\"https:\/\/energysystemsgroup.com\/wp-content\/uploads\/2023\/09\/Historic-ESG-Group-Photo-1-crop-scaled.jpg\" alt=\"Historic ESG-Group Photo 1-crop\" itemprop=\"image\" height=\"2042\" width=\"2560\" title=\"Historic ESG-Group Photo 1-crop\" onerror=\"this.style.display='none'\" loading=\"lazy\" \/>\n\t\t\t\t<img decoding=\"async\" src=\"https:\/\/energysystemsgroup.com\/wp-content\/uploads\/2023\/08\/ESG-Corporate-Office-Night_web.jpg\" alt=\"ESG Corporate Office - Night_web\" itemprop=\"image\" height=\"742\" width=\"1320\" title=\"ESG Corporate Office - Night_web\" onerror=\"this.style.display='none'\" loading=\"lazy\" \/>\n\t\t\t\t<img decoding=\"async\" src=\"https:\/\/energysystemsgroup.com\/wp-content\/uploads\/2025\/11\/3-logos.png\" alt=\"3 logos\" itemprop=\"image\" height=\"200\" width=\"400\" title=\"3 logos\" onerror=\"this.style.display='none'\" loading=\"lazy\" \/>\n\t\t\t<h3> 1994<\/h3> <p>Energy Systems Group, LLC is formed as a non-regulated, wholly-owned subsidiary of Southern Indiana Gas &amp; Electric Company (SIGECO) in April 1994.<br \/>ESG becomes profitable within the first five months of operation.<\/p>\t\t\n\t\t\t<h3> 1996<\/h3> <p>Ownership is transferred to SIGCORP, a holding company that helps facilitate company growth.<\/p>\t\t\n\t\t\t<h3> 1997<\/h3> <p>ESG begins discussions with two Indiana-based utility companies. <br \/>On June 18, SIGCORP sells two thirds of their ownership to Indiana Energy and Citizens Gas &amp; Coke Utility.<\/p>\t\t\n\t\t\t<h3> 2000<\/h3> <p>SIGCORP and Indiana Energy merge, forming Vectren Corporation. ESG is now owned by Vectren Corporation and Citizens Gas &amp; Coke Utility.<\/p>\t\t\n\t\t\t<h3> 2003<\/h3> <p>Vectren Corporation buys the remaining one third ownership from Citizens Gas &amp; Coke Utility, making it the sole owner.<\/p>\t\t\n\t\t\t<h3> 2019<\/h3> <p>ESG becomes a subsidiary of CenterPoint Energy, Inc. (NYSE: CNP), an energy delivery company, totaling approximately $35 billion in assets.<\/p>\t\t\n\t\t\t<h3> 2023<\/h3> <p>Oaktree Capital Management acquires ESG, establishing it as a standalone company and supporting its strategic growth in sustainable energy services.<\/p>\t\t\n\t\t\t<h3> 2024<\/h3> <p>Energy Systems Group has expanded its presence across the Southwestern and California United States by acquiring Yearout Energy Services Company and PacificWest Energy.<\/p>\t\t\n\t\n","protected":false},"excerpt":{"rendered":"<p>Our History Building on a Legacy of Practical Innovation Forging lasting partnerships with our clients to solve their toughest energy and infrastructure challenges isn&#8217;t just something we do. It&#8217;s what we&#8217;ve always done. From our earliest days as an energy service company (ESCO), we&#8217;ve been helping our clients build a brighter tomorrow. Our roots in&hellip;<\/p>\n","protected":false},"author":12,"featured_media":3003,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"content-type":"","inline_featured_image":false,"footnotes":""},"class_list":["post-2203","page","type-page","status-publish","has-post-thumbnail","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v23.1 (Yoast SEO v27.5) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Our History | A Legacy of Practical Energy Innovation | ESG<\/title>\n<meta name=\"description\" content=\"rom our earliest days as an ESCO to the present, we\u2019ve served as a partner and advocate for our clients.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/energysystemsgroup.com\/history\/\" \/>\n<meta property=\"og:locale\" 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