EL SEGUNDO, CA-Locally based Partner Engineering and Science Inc., a national environmental and engineering consulting firm, has revealed plans to expand. Since March, the firm—which focuses on real estate due diligence, building sciences, construction monitoring and environmental site remediation services—has added 35 new hires. In addition, learns that the company plans to hire an additional 30 key professional before year end.

“With the hiring so far this year, and the expectancy to hire an additional 30 before year’s end, we will double our size from last year,” company president Joseph Derhake tells “The increased manpower will allow us to keep up with the increased demand for our services.”

Kevin Roberts, a technical director in the industrial hygiene division, and one of the firm’s new hires on the West Coast, tells that “Partner attracts world-class scientists and engineers who are drawn to our open, collaborative culture in which one success often leads to another.” He adds that “These professionals, together with associates and business unit colleagues—and often with customers and supply-chain partners—work to solve complex problems and maximize opportunities in our chosen markets.” Roberts points out that, “It is our deep understanding of both materials science and advanced building systems that enables us to collaborate with industry leaders to address the critical market needs of today and tomorrow.”

Roberts, based in the firm’s corporate headquarter office, has 17 years of experience in adbestos and lead surveys, mold abatement, site characterizations and indoor air quality testing for commercial and industrial clients. Previously, Roberts was senior project manager for Coffey Environments, the environmental due diligence unit of UK-based Coffey International Ltd., a global professional services consultancy.

Also recently joining the firm was veteran geologist and environmental engineer Andrew Brack was added to head the firm’s Phase II Subsurface Testing and Remediation Practice. His title is principal and director of site mitigation and he will be based out of the company’s newly opened Irvine, CA office. Previously, Brack was a vice president with Tetra Tech, an international engineering and technical services firm, where he headed the commercial operations in California.

Joining one of the firm’s other Southern California offices, veteran environmental consultant Eric Correia recently joined Partner Engineering and Science as a project manager in the San Diego office. With a decade of experience in commercial due diligence consulting, Correia has performed Property Condition Assessments, Phase I Environmental Site Assessments and construction Progress Monitoring on a wide variety of projects throughout the US.  Correia came to Partner from San Diego-based BC Group LLC, a privately held environmental consulting firm. Previously, he was quality control manager for Project Resources Inc., a national engineering and environmental consulting firm headquartered in San Diego.

Another recent addition to the San Diego office is environmental due diligence veteran Mark Lambson, who joined as a principal. Lambson, formerly vice president of sales and marketing at Green Concepts International, will be responsible for firm wide business development and management of the firm’s national client base, which includes regulators, lenders and creditors and prospective real estate investors. Previously he was national sales manager for LandAmerica Assessment Corp.

The women owned business, which has a total of 16 offices nationwide, has also acquired three of its competitors, since it opened its doors less than three years ago. In March of 2009, the firm acquired the assets of LandAmerica Assessment Corp. a LandAmerica Financial Group Inc. subsidiary which had filed for bankruptcy. Under the terms of the transaction, Partner received all of LAC’s accounts receivables, digital assets, existing environmental reports and LAC’s “best-in-industry” software systems. A month prior to that, Partner In February, the firm acquired the environmental site assessment practice of Loveland, CO-based US-Reports, a provider of Phase I Environmental Site Assessments to SBA Lenders across the US. 

In July of this year, the company was hired to provide the Phase I Environmental Site Assessments for CB Richard Ellis Strategic Partners US Value 5, a fund managed by CBRE Investors LLC, in its recent $360-million acquisition of a 1.6-million-square-foot office portfolio in downtown Oakland. The portfolio of buildings, which comprises the Oakland City Center, includes 1300 Clay St., 499 14th St., 501 14th St., 505 14th St., 500 12th St., and a parking garage. The acquisition also included the LEED Gold Certified buildings 1111 Broadway and 555 12th St., which represent more than one million square feet in the portfolio. The buildings are located above the 12th Street Bay Area Rapid Transit System which serves as the hub for the entire104-mile BART system which serves San Francisco, Alameda and Contra Costa counties.