Torrance, California, USA, October 20 (Reuters/ PR Newswire ) – Partner Engineering and Science , Inc . ( Partner ) rose 25 places in the Engineering News - Record 2026 Top 200 Environmental Firms rankings, making it to the list for the 14th consecutive year.
The ranking is based on revenue for 2025. Partner indicates that the rise in rankings reflects a strong market demand for environmental consulting and due diligence services, which is driven by ongoing commercial real estate transactions, an increasing demand for project-based environmental health and safety consulting, infrastructure investments, environmental restoration projects, and growing regulatory requirements. Partner also continues to expand its expertise in areas such as building efficiency, resilience, and renewable energy.
The company stated that its growth is attributed to its integrated service model, which enables customers to efficiently manage environmental risks throughout the entire real estate lifecycle, from acquisition and development to restoration and asset management. The company continues to invest in professional technical capabilities, nationwide coverage, and packaged services, enhancing its ability to deliver complex environmental solutions while maintaining the speed of response and consistency that customers expect.
The ranking of ENR covers environmental work in the following categories:
- Hazardous waste and solid waste cleanup and management
- Nuclear Waste Cleanup and Management
- Air pollution control, renewable energy, and energy efficiency
- Water Supply and Water Treatment
- Environmental Management
- Environmental Science and Natural Resources
According to ENR, with changes in federal policies, environmental companies continue to find opportunities in areas such as domestic manufacturing investment, emerging pollutants cleanup, and AI infrastructure. Partner indicates that these trends are reflected in increased support for the life sciences and pharmaceutical industries, PFAS surveys, as well as growing demand for feasibility and compliance consulting services in data centers.
The company stated that although higher interest rates, economic uncertainties, and changes in the commercial real estate investment model may affect future transaction volumes, these circumstances also create opportunities for investments that can enhance the performance of its own real estate assets, including services such as renovation, compliance, and asset repositioning.
Partner, the Director of Environmental Services Strategy at Kathryn Peacock, stated: "The combination of the institutionalization of real estate with a challenging market environment is leading investors to conduct more stringent reviews and higher levels of due diligence on real estate investments. At the same time, property owners are shifting their funds towards asset improvements, including addressing some environmental issues they have long wanted to tackle. The technology-enabled approaches of Partner help clients streamline these processes and improve efficiency in capital planning and ongoing environmental obligations."
The company also stated that its growth is attributed to its integrated service model, which enables customers to efficiently manage environmental risks throughout the entire real estate lifecycle, from acquisition and development to restoration and asset management. Continuous investment in professional technology, technical solutions, nationwide coverage, and packaged services has enhanced the company's ability to deliver complex environmental solutions while maintaining the speed of response and consistency that customers expect.
Partner indicates that its international platform, extensive technical expertise, and integrated service portfolio enable the company to occupy a favorable position in the ever-changing real estate market and emerging growth areas, while continuing to achieve sustainable long-term growth.
About Partner
Partner is a leading provider of engineering, environmental, energy, construction, and valuation consulting services in the commercial real estate (CRE) industry. Partner has been involved in one-fifth of all commercial real estate transactions in the United States and is widely recognized as a market leader in providing due diligence reports for third-party entities, including preliminary environmental site assessments, property condition evaluations, seismic risk assessments, zoning reports, ALTA land title surveys, valuations, and construction risk management. Partner's close connection to the commercial real estate market gives it an unparalleled perspective on industry trends and risk management.
Partner also provides a full range of consulting services that support the entire real estate lifecycle, including: geotechnical engineering consulting, building systems consulting, capital management and project implementation support, asset valuation and financial reporting, environmental health and safety consulting, energy, sustainability, and resilience consulting, as well as site civil engineering. With a responsive service approach designed for speed and flexibility, Partner helps clients manage risks, make informed investments, optimize asset performance, and achieve success in their real estate investment strategies.
Partner is headquartered in Torrance, California, and has over 1,500 employees in 40 offices around the world.











