Featured Sustaining Member Firms for March/April 2019

  • EnSafe Inc.
  • Etegra Inc
  • exp Federal Inc
  • Flame Stop Inc.
  • Freese and Nichols, Inc.
  • Garver
  • Gilbane Federal
  • Gorrondona & Associates, Inc.
  • GSA
  • Gulf South Research Corporation
  • Halff Assoc.
  • Harrison Walker & Harper
  • HDR
  • HGL Construction, Inc.
  • HNTB


EnSafe Blue-Gray Logo

EnSafe is an employee-owned, multidisciplinary, professional services firm providing engineering, environmental and health and safety and technology solutions since 1980. For the past 36 years, EnSafe has been procuring, managing, and successfully executing large-scale environmental projects for the utility industry, private industry and at all levels of government. Engineering News-Record consistently ranks EnSafe among the top environmental and design firms in the U.S. because we’re able to solve our clients’ toughest consulting challenges.

EnSafe’s Comprehensive Long-term Environmental Action, Navy (CLEAN) contract is a premier example of our demonstrated ability to provide unmatched programmatic support, and successfully deliver comprehensive assessment and remediation services at highly complex sites across an expansive geographic footprint. EnSafe’s CLEAN portfolio, which includes multiple contract awards and over 300 task orders, represents more than 35 years of work with a combined value in excess of $250 million. The CLEAN contract involves full-scale assessment and remediation services at over 60 installations across the U.S.



Freese FNI Logo

Freese and Nichols is a client-focused, regionally based engineering and planning firm. Dating back to our firm’s founding in 1894 in Fort Worth, we have put relationships first – clients, teaming partners and staff – and seek long-term relationships, many of which are counted in decades, not years.
At Freese and Nichols, our tenured staff provide consistency in services and culture. Our project teams are known for exceeding client expectations through innovative concepts and high-performing infrastructure designs. We approach stewardship of resources (ours, our clients’ and the world’s) with resiliency and balance in mind.

Garver Primary Logo - CMYK

Founded in 1919, Garver is celebrating its 100th year and is a multi-disciplined A-E, planning, and environmental services firm headquartered in North Little Rock, Arkansas. With nearly 600 employees located at 28 offices in 11 states, Garver offers a wide range of services with a focus on aviation, construction administration, facilities design, federal, power, transportation, survey, and water/ wastewater. Garver sits in the top 150 of the Engineering News-Record’s prestigious Top 500 Design Firms list, while Zweig Group has recognized Garver as a Best Firm to Work For in the multi-discipline category for 5 consecutive years. Learn more at GarverUSA.com.


Gilbane 225

Gilbane Building Company, founded in 1873, is a family-owned, global, construction and facilities-related solutions firm. Gilbane is recognized as an industry leader that delivers innovative building solutions-from state-of-the art sustainable buildings to the latest applications in construction technology.

Operating more than 50 offices in 12 countries, we can rapidly mobilize anywhere in the world. Our multidisciplinary professionals, numbering in excess of 2600 employees capable of executing multiple, geographically dispersed projects, performing over 500 concurrent projects – each adhering to Gilbane’s commitment to safety and quality with a determined effort to exceed our clients’ expectations.

We are proud to work with U.S. federal agencies operating domestically and worldwide.


Gulf South Research Corporation (GSRC) is headed into its second 25 years of providing environmental planning services to Federal and state agencies nationwide. Headquartered in Baton Rouge, Louisiana, GSRC maintains offices in Tucson, Arizona, and Niceville, Florida, and has several permanent full-time employees stationed in San Diego, California. The GSRC’s expertise includes experience in wetland delineations; biological surveys; Phase 1 site assessments; various NEPA documents; water resources planning; cultural resources surveys; public involvement; and GIS database development. Since 1993 GSRC has held nearly 30 IDIQ contracts, including one or more with the USACE Fort Worth District every year since 1998.


For more than a century, HNTB has helped create infrastructure solutions that best meet the unique demands of their environment. With client, including US government and military, relationships spanning decades, we understand infrastructure life cycles and have the perspective to solve technical challenges with clarity and imagination. We see and help address far-reaching issues of financing, legislation, design, construction, community outreach and ongoing operations. With more than 4,000 employee-owners in 60 offices committed to the highest levels of performance, we enable clients to achieve their visions and goals.

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