Alternative Power Generation
Acquisition in 2025
Alternative Power Generation is a specialized engineering, procurement, and construction company that designs, builds, and maintains clean energy infrastructure. They focus on solar and wind power plants, electric vehicle charging stations, and energy storage systems, serving cooperative utilities, independent system operators, and other clients seeking reliable, resilient energy alternatives.
Alpha Inspections
Acquisition in 2025
Alpha Inspections, based in Clermont, Florida, specializes in professional building inspection services. The company works with municipalities, offering building department solutions and planning reviews to ensure construction projects adhere to relevant codes and regulations. Their services prioritize efficiency and regulatory expertise, aiming to provide the highest level of service to their clients.
Enica Engineering
Acquisition in 2024
Enica Engineering is an engineering services firm that specializes in automation system design, metering system design, and life-cycle analysis. The company focuses on bridging the gaps between current project delivery methods and future engineered systems. Its comprehensive range of services includes specialty services, project development, project execution, and field engineering, as well as consulting. Enica Engineering caters to various sectors, including medical campuses, universities, pharmaceutical companies, hospitals, telecom organizations, and industrial manufacturers, ensuring successful completion of construction projects with minimal complications.
Onsite Energy
Acquisition in 2019
Onsite Energy Corp. is a firm specializing in energy efficiency services and project implementation for industrial facilities. The company focuses on providing energy services to industrial energy users and utilities, offering a range of solutions that include energy efficiency audits, project feasibility studies, project scoping and specification, implementation, and incentive procurement and administration. Onsite Energy's mission is to enhance the profitability of its clients by identifying and executing economically viable energy efficiency and generation projects. Through its comprehensive approach, the company aims to facilitate significant energy upgrades and commissioning in various industrial settings.
The Weidt Group
Acquisition in 2019
The Weidt Group, Inc. is a provider of energy consulting and software development services, focusing on delivering analysis and consulting solutions to utility companies, manufacturers, architects, engineers, evaluators, and policymakers. The company specializes in creating software tools and virtual products that help model and manage the complexities of the built environment. By offering data stores and decision-support tools, The Weidt Group aims to enhance decision-making throughout various stages of a project, from pre-design and product selection to post-occupancy evaluations. Through its innovative approach, the company supports stakeholders in making informed decisions that improve energy efficiency and overall performance.
Lime Energy
Acquisition in 2018
Lime Energy Co. specializes in designing and implementing energy efficiency programs for utilities across the United States. Founded in 1997 and headquartered in Newark, New Jersey, the company is recognized as the largest direct install firm in the country. Lime Energy provides a comprehensive range of services aimed at enhancing energy efficiency for small and mid-sized commercial and industrial clients. Its offerings include energy-efficient lighting upgrades, mechanical upgrades, and various utility program management services such as program design, customer recruitment, and project implementation. The company focuses on delivering predictable energy-saving products and services, thereby helping businesses reduce energy-related expenses and minimize their environmental impact. Lime Energy Co. operates as a subsidiary of Willdan Energy Solutions, Inc. since 2018.
Newcomb Anderson McCormick
Acquisition in 2018
Newcomb Anderson McCormick, Inc. is an engineering and management consulting firm based in San Francisco, California, founded in 1983. The company specializes in addressing energy and sustainability challenges for both public and private sector clients. It offers a wide range of services, including energy program development and management, energy engineering, due diligence, renewable energy solutions, energy storage, distributed generation, and strategic energy planning. Through its expertise, Newcomb Anderson McCormick aims to provide comprehensive energy management services that enable utilities, government agencies, and private sector organizations to effectively tackle critical energy and sustainability issues. As of April 30, 2018, the firm operates as a subsidiary of Willdan Group, Inc.
Integral Analytics
Acquisition in 2017
Integral Analytics, Inc. is an analytical software and consulting firm based in Cincinnati, Ohio, established in 2005. The company specializes in providing data analytics software and consulting services tailored to the energy industry. Integral Analytics offers a range of products, including the Demand Side Management Option Risk Evaluator, which assesses the costs and benefits of demand side management programs, and DRPricer, designed to help stakeholders determine the fair value of program participation options. Their LoadSEER software allocates land-use changes using a geospatial grid, while IDROP optimizes resource dispatch for utilities. Additionally, the firm provides grid-scale battery valuation tools, WindStore for managing supply-demand uncertainties, and modules to evaluate greenhouse gas reductions from energy efficiency initiatives. Integral Analytics combines engineering and economics to deliver robust forecasting and analytics, enabling utilities and energy resource owners to make informed decisions amidst the evolving landscape of distributed energy resources and renewable energy integration. As of July 2017, the company operates as a subsidiary of Willdan Energy Solutions, Inc.
Intergy
Acquisition in 2009
Energy is a critical necessity to the modern world. What used to be taken for granted is now a precious resource, and California has embarked on the largest energy efficiency effort in world history. Planning to spend billions of dollars to conserve energy and maintain the state's role as the world's leader in technology and science, the governor and the California Public Utility Commission, along with the investor-owned utilities are directing enormous resources towards energy efficiency, conservation and sustainability. Founded in 2003 by two Northern California entrepreneurs, Intergy is ideally suited to play a critical role in the state's energy efficiency efforts. The company brings together over two decades of experience in the energy and information technology fields, offering innovative solutions to challenging resource problems.