ACEC member firms employ hundreds of engineers, architects, land surveyors, scientists, and other specialists, responsible for billions of dollars of private and public works annually. Member firms range in size from a single registered professional engineer to corporations employing thousands of professionals.

Golder Associates

670 NE Commercial Street, Suite 103Manchester, NH 03101
Megan Melendy, PE(603) 668-0880
golder.com
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670 NE Commercial Street, Suite 103Manchester, NH 03101
Megan Melendy, PE(603) 668-0880
golder.com

Across the globe, companies and governments are creating the world of tomorrow. They are building vital infrastructure, developing projects, restoring landscapes and renewing their economies with sustainability in mind.

We are an employee-owned, global organization providing consulting, design, and construction services in our specialist areas of earth, environment, and energy through technical excellence, innovative solutions and award winning client service. Today, our clients represent the world’s major industries and drivers of development: Oil and Gas, Mining, Manufacturing, Power, and Infrastructure.

Employee owned since being founded in 1960, our more than 6,500 people operating from 165 offices worldwide deliver deep technical understanding, cross-disciplinary thinking and a passion to help our clients succeed.

Greenman-Pederson, Inc.

21 Daniel Street, 2nd FloorPortsmouth, NH 03801
Joseph Johnson, PE, PTOE(603) 891-2213
gpinet.com
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21 Daniel Street, 2nd FloorPortsmouth, NH 03801
Joseph Johnson, PE, PTOE(603) 891-2213
gpinet.com

Since 1966, GPI has designed, managed and supported our clients on a wide array of projects. We’re employee-owned, known for our technical knowledge and commitment to getting each job done well. Our widely-recognized quality of service rises from the talent and energy of our exceptional team. The work ethic and dedication of the men and women at GPI allow us to deliver consistent, quality service to government agencies, municipalities, architects, commercial developers, and property owners.

Our values as a firm and our commitment to our core strategic objectives including Employee Satisfaction, Quality Product, and Client Satisfaction have contributed to our continued growth and the confidence of our longstanding client relationships.

GZA GeoEnvironmental, Inc.

5 Commerce Park N #201Bedford, NH 03110
David G. Lamothe, PE(603) 623-3600
gza.com
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5 Commerce Park N #201Bedford, NH 03110
David G. Lamothe, PE(603) 623-3600
gza.com

Our vision is to operate as One Company, excelling as a multi-disciplinary, multi-office firm of proactive, bright and dedicated people; create Growth, increasing our staff, revenues, and profits for the benefit of our employees, shareholders and clients; achieve National Recognition in our core service areas on the strength of our technical expertise, experience and reputation of our people; and achieve Generational Transition, successfully transitioning the leadership of the firm to a new generation. We focus on clients in the architecture and engineering, contracting, governmental, industrial, infrastructure, institutional, oil and gas, power and real estate client sectors.  The legal community also represents a key alliance and focus of ours, connecting us in many of these sectors.  We excel at providing high value consulting on complex projects, bringing to bear the entire resources of the company across all offices and services for our clients, regardless of where the client or project is based. We take the greatest pride in advocating for our clients and developing solutions that advance their business or project.

Haley Aldrich, Inc.

3 Bedford Farms DriveBedford, NH 03110
John G. DiGenova, PE(603) 625-5353
haleyaldrich.com
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3 Bedford Farms DriveBedford, NH 03110
John G. DiGenova, PE(603) 625-5353
haleyaldrich.com

From a foundation of technical excellence, Haley & Aldrich seeks to create more value for our clients while reducing their overall project costs. We use novel approaches to engineering and environmental challenges, including more efficient processes and new ways of applying technology. In some cases that means not doing things the way they are usually done in our industry, or the way our clients typically approach a project. We also innovate in our practice by looking beyond the technical challenges to consider how various stakeholders impacted by a project will measure success. We consider the needs of various regulatory agencies as well as the impact on the environment, communities, and neighborhoods. We factor those needs with our deep understanding of the value our clients desire to create for their organizations and stakeholders. Core to how we operate is our commitment to having our best people on the most challenging opportunities, and the right people doing the right work—safely. To do this, we’ve built one team that works together across all U.S. geographies to solve complex problems above and below ground.

Hardesty & Hanover

6 Bedford Farms Drive, Suite 111Bedford, NH 03110
Christopher D. Baker, PE(603) 932-2943
hardestyhanover.com
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6 Bedford Farms Drive, Suite 111Bedford, NH 03110
Christopher D. Baker, PE(603) 932-2943
hardestyhanover.com

Engineering Tomorrow, Every Day.

Hardesty & Hanover is a full-service infrastructure engineering firm with more than 130 years of experience steeped in solving complex engineering challenges. Consulting firms, contractors and infrastructure owners count on us when innovative design and intricate engineering solutions are required. Our specialty lies in the ability to manage the entire life cycle of engineering services and support. We employ teams of superior engineers that bring a forward-thinking approach using the world’s latest project management, design, and support innovations. As a result, your projects are brought in on time, on budget, and are engineered to the highest standards in design, durability, safety, and aesthetic value.

Long-lasting infrastructure that looks amazing and functions flawlessly.

Hayner/Swanson, Inc.

3 Congress StreetNashua, NH 03062
John C. Vancor, PE(603) 883-2057
hayner-swanson.com
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3 Congress StreetNashua, NH 03062
John C. Vancor, PE(603) 883-2057
hayner-swanson.com

We have built our company on a reputation of dependability and take great pride in our staff’s depth of technical expertise and the thoroughness of our project planning and performance.

Whether we take the lead role of managing a project from start to finish, or we provide services in support of others, we always take pride in our commitment to teamwork.

HDR Engineering, Inc.

250 Commercial Street, Suite 3007Manchester, NH 03101
Thomas A. French, PE(603) 391-0856
hdrinc.com
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250 Commercial Street, Suite 3007Manchester, NH 03101
Thomas A. French, PE(603) 391-0856
hdrinc.com

We believe that the way we work can add meaning and value to the world. That ideas inspire positive change. That coloring outside the lines can illuminate fresh perspectives. And that small details yield important realizations. Above all, we believe that collaboration is the best way forward.

We specialize in engineering, architecture, environmental and construction services. While we are most well-known for adding beauty and structure to communities through high-performance buildings and smart infrastructure, we provide much more than that. We create an unshakable foundation for progress because our multidisciplinary teams also include scientists, economists, builders, analysts and artists.

Our employees, working in more than 200 locations around the world, push open the doors to what’s possible each and every day.

HEB Engineers, Inc.

2605 White Mountain HighwayNorth Conway, NH 03860
Jay J. Poulin, PE(603) 356-6936
hebengineers.com
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2605 White Mountain HighwayNorth Conway, NH 03860
Jay J. Poulin, PE(603) 356-6936
hebengineers.com

Throughout the years, we have built a reputation for quality service and a commitment to our clients, staff, and community. This dedication flourishes today as we continue to provide our clients with efficient and effective solutions. HEB is dedicated to providing a dynamic and innovative work environment for our staff and serving as an effective community member through various volunteer and giving programs. Today’s well-established civil, structural, and surveying groups are each led by a principal or senior manager with supporting engineers and surveyors who are licensed in their various disciplines. We take pride in our staff and our proven ability to provide innovative and cost-effective designs and solutions. HEB offers a full range of civil, structural, and surveying services to commercial, industrial and government entities, as well as architects, developers and individuals. All design work takes place in our North Conway and Bridgton offices, with the exception of on-site construction observation services and the work of our consultants.

HNTB Corporation

6 Loudon Road, Suite 201Concord, NH 03301
Phillip E. Kendall II, PE(603) 494-9179
hntb.com
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6 Loudon Road, Suite 201Concord, NH 03301
Phillip E. Kendall II, PE(603) 494-9179
hntb.com

HNTB Corporation is an employee-owned infrastructure solutions firm serving public and private owners and contractors. With more than a century of service, HNTB understands the life cycle of infrastructure and addresses clients’ most complex technical, financial and operational challenges. Professionals deliver a full range of infrastructure-related services, including award-winning planning, design, program and construction management.

Our culture is defined by integrity, technical excellence and providing quality work on time and on budget to our clients’ satisfaction. The ideals and values that have guided HNTB for its first 100 years still hold true today.

Hoyle, Tanner & Associates

150 Dow StreetManchester, NH 03101
Christopher R. Mulleavey, PE(603) 669-5555
hoyletanner.com
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150 Dow StreetManchester, NH 03101
Christopher R. Mulleavey, PE(603) 669-5555
hoyletanner.com

Established in 1973, Hoyle, Tanner has enjoyed steady growth over the past 45 years. In that period, we have completed over 12,500 projects. Our corporate headquarters is located in the historic mill yard of Manchester, NH, with regional offices in Portsmouth, NH; Burlington, VT; Yarmouth ME; North Andover, MA and in Oviedo, FL. While the majority of our projects are along the eastern seaboard, we have completed many projects throughout the United States. Hoyle, Tanner’s staff consists of Professional Engineers, planners, technicians and support staff. Our team of professionals provides municipal, state and federal clients with quality civil, structural, environmental, transportation and aviation, planning and engineering. We emphasize the development of creative, cost-effective, results-oriented solutions to planning and design projects. We strive to provide our clients with quality services delivered on time, and on budget resulting in successful projects. Our vision is to provide innovative, collaborative and sustainable engineering and planning solutions to the challenges our clients face, while enhancing the communities in which we work and live.

Jacobs

2 Executive Park DriveBedford, NH 03110
John J. Wilson, PE(603) 666-7181
jacobs.com
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2 Executive Park DriveBedford, NH 03110
John J. Wilson, PE(603) 666-7181
jacobs.com

At Jacobs, our focus on building long-term client relationships has helped us become one of the largest and most diverse providers of technical, professional and construction services, including all aspects of architecture, engineering and construction, operations and maintenance, as well as scientific and specialty consulting. Our 77,000+ employees in 400+ locations around the world serve a broad range of companies and organizations, including industrial, commercial, and government clients across multiple markets and geographies.

Jacobs leads the global professional services sector delivering solutions for a more connected, sustainable world. With $15 billion in fiscal 2017 revenue when combined with full-year CH2M revenues and a talent force of more than 77,000, Jacobs provides a full spectrum of services including scientific, technical, professional and construction- and program-management for business, industrial, commercial, government and infrastructure sectors.

Kleinfelder

77 Sundial Ave #306Manchester, NH 03103
Peggy Duval(603) 623-4400
kleinfelder.com
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77 Sundial Ave #306Manchester, NH 03103
Peggy Duval(603) 623-4400
kleinfelder.com

We are engineers, scientists, and construction professionals providing solutions that improve our clients’ transportation, water, energy, and other private infrastructure. Kleinfelder is an integrated, cross-disciplinary team of bright, curious, innovative problem-solvers dedicated to doing the right thing every day, on every project.

L.C. Engineering Company, LLC

2 Beacon StreetConcord, NH 03301
Louis P. Caron, PE(603) 410-6300
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2 Beacon StreetConcord, NH 03301
Louis P. Caron, PE(603) 410-6300

L.C. Engineering Company, LLC is a privately held company out of Concord, NH, specializing in professional engineering services including the design of subdivisions and commercial sites, permitting, and construction observation services (roads, sewer, water supply, and developments).

Louis Berger

100 Commercial StreetManchester, NH 03101
Liviu Sfintescu, PE(603) 644-5200
louisberger.com
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100 Commercial StreetManchester, NH 03101
Liviu Sfintescu, PE(603) 644-5200
louisberger.com

Louis Berger is an Engineering News-Record top-20 ranked, global professional services corporation that helps clients solve their most complex infrastructure and development challenges.

  • Delivering major infrastructure redevelopment programs in highly populated, urban areas.
  • Constructing and rehabilitating critical infrastructure in fragile states and developing countries.
  • Fostering sustainable livelihoods and economic development worldwide.
  • Preserving and protecting the environment to ensure that future generations have access to clean air and water, fertile soil, open spaces and sustainable resources.
  • Preserving the aesthetic, environmental, historical and cultural integrity of national and historic landmarks around the world.

With nearly 6,000 engineers, economists, scientists and planners worldwide in more than 50 nations, we are unique in our ability to adapt to local situations.

McFarland-Johnson, Inc.

53 Regional DriveConcord, NH 03301
Michael D. Long(603) 225-2978
mjinc.com
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53 Regional DriveConcord, NH 03301
Michael D. Long(603) 225-2978
mjinc.com

MJ is a 100% employee owned ESOP, which truly offers a unique opportunity. Less than 2% of all US corporations are 100% ESOP owned. The benefit of MJ being a 100% employee owned ESOP is that our employee owners’ extra efforts contribute to the results that we all share in. However, what we are constantly striving to accomplish at MJ is that the ESOP is much more than a benefit, it is our culture!

Here at MJ, we positively impact peoples’ lives every day. Whether redesigning a highway interchange to improve safety, renovating a building to improve comfort and energy efficiency, or implementing an in-house training seminar that allows our staff to grow personally and professionally, we take on the opportunity to make a difference passionately. We constantly challenge our people to innovate not just how we do things, but how we think. Every project we undertake has unlimited potential for innovations that can add value for our clients, the users, our environment, our employee-owners and our communities. Our mission is to maximize those opportunities for the benefit of all.

Milone & MacBroom, Inc.

1 Sundial Avenue, Suite 505NManchester, NH 03103
Bob Klimm(603) 218-2320
miloneandmacbroom.com
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1 Sundial Avenue, Suite 505NManchester, NH 03103
Bob Klimm(603) 218-2320
miloneandmacbroom.com

Milone & MacBroom is one of the largest consulting firms in the Northeast, offering a diverse set of specialty practices in the fields of engineering, planning, landscape architecture, and environmental science and services. We serve a multitude of industries, from government and NGO’s to cities and municipalities. Unlike niche companies or enterprise firms, we have local expertise, cross-functional teams, and a relationship-first approach that sets us apart. That, combined with our technical precision, attention to detail, and passion behind our work, helps us to deliver the most efficient and sustainable solutions offered.

Nobis Engineering, Inc.

18 Chenell DriveConcord, NH 03301
Ken Koornneef, PE(603) 224-4182
nobis-group.com
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18 Chenell DriveConcord, NH 03301
Ken Koornneef, PE(603) 224-4182
nobis-group.com

Founded in 1988, Nobis Group is an integrated consulting firm providing engineering and environmental solutions for public and private projects of all sizes. We are committed to solving the challenges of making the Earth a better place to live – community by community, and project by project.

As an employee-owned business, everyone here at Nobis is empowered, engaged, and committed to get each project done exactly how the client needs it done. This has created a culture of personal pride in our work and our relationships, giving our clients confidence that we will deliver.

We look at each project as an opportunity to make our communities a better place. Whether we’re incorporating sustainable features into our designs, using green and sustainable practices during our field work and site cleanups, or restoring a former Brownfields site, our employees are actively committed to protecting our environment.

O’Brien & Gere (OBG)

333 West Washington StreetSyracuse, NY 13202
William Monette, PE(315) 956-6100
obg.com
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333 West Washington StreetSyracuse, NY 13202
William Monette, PE(315) 956-6100
obg.com

OBG strives to make the world a little better with every idea we put into action. This has been our way since 1945 and has proven even more essential over the years, as sustainability and the environment have become global topics. It’s this belief that will continue to guide us into the future.

Our mission – People creating a better future by making a difference each day.

Our vision – Become the premier provider of integrated, innovative, and sustainable solutions within natural and built environments.

Our values – Respect, accountability, integrity, excellence, and teamwork

Quantum Construction Consultants, LLC

27 Locke RoadConcord, NH 03301
Lisa M. Martin, PE(603) 224-0859
quantum-cc.com
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27 Locke RoadConcord, NH 03301
Lisa M. Martin, PE(603) 224-0859
quantum-cc.com

Quantum Construction Consultants, LLC is a unique firm specializing in the bridge and roadway infrastructure needs of municipalities. Located in Concord, NH, QCC has been providing structural and civil engineering services to state, municipal, and private clients throughout New England since 1999. In addition to bridge and roadway infrastructure design, QCC is committed to providing quality engineering services including hydrologic and hydraulic analyses, drainage design, civil support services, structural design services, site design, construction support services, environmental permitting and dam design services. QCC’s engineering and design capabilities are complemented by our construction phase services. QCC’s uniquely cross-trained staff allows team members to develop strong working relationships with clients, subconsultants, design review agents, and permitting authorities; while delivering high quality service on a diverse array of projects simultaneously. All QCC technical staff are LPA certified and are experienced in managing projects funded by state, municipal and federal agencies.

S.W. Cole Engineering, Inc.

13 Delta Drive #8Londonderry, NH 03053
Chad B. Michaud, PE(603) 716-2111
swcole.com
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13 Delta Drive #8Londonderry, NH 03053
Chad B. Michaud, PE(603) 716-2111
swcole.com

S. W. Cole Engineering, Inc. is a geotechnical engineering, construction materials testing and geo-environmental consulting firm with eight offices across Northern New England. Established in 1979 by Stephen W. Cole, the S.W.COLE team includes more than 90 engineers, scientists and technicians and performs services throughout New England. S.W.COLE is very familiar with the soil conditions in New England. Over our history of more than 37 years, we have worked with a wide variety of complex geologic and subsurface conditions throughout New England. Our vast experience has provided us with a great understanding of the impacts that variability in subsurface conditions can have on design and construction. We have had the opportunity to work with many different types of clients, including governmental agencies and municipalities, energy and utility providers, public and private institutions, architectural and engineering firms, and general contractors. Because our services benefit nearly every type of project, be it vertical or horizontal, our projects span many different industries.