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.

2S-Squared, LLC

1 Patricia AveExeter, NH 03833
Jill Mayo(603) 793-2839
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1 Patricia AveExeter, NH 03833
Jill Mayo(603) 793-2839

2S-Squared LLC provides smart, solid SAP solutions. Independent consulting services provided include expertise in all phases of the implementation of SAP Supply Chain Solutions in a variety of industries including retail, consumer goods, automotive, and high tech.

AECOM

1155 Elm Street #401Manchester, NH 03101
John G. Goudreault, PE(603) 606-4800
aecom.com
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1155 Elm Street #401Manchester, NH 03101
John G. Goudreault, PE(603) 606-4800
aecom.com

AECOM is a global network of experts working with clients, communities and colleagues to develop and implement innovative solutions to the world’s most complex challenges.

Delivering clean water and energy. Building iconic skyscrapers. Planning new cities. Restoring damaged environments. Connecting people and economies with roads, bridges, tunnels and transit systems. Designing parks where children play. Helping governments maintain stability and security.

We connect expertise across services, markets, and geographies to deliver transformative outcomes. Worldwide, we design, build, finance, operate and manage projects and programs that unlock opportunities, protect our environment and improve people’s lives.

Imagine it. Delivered.

Appledore Marine Engineering, LLC

600 State Street #EPortsmouth, NH 03801
Noah J. Elwood, PE(603) 766-1870
appledoremarine.com
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600 State Street #EPortsmouth, NH 03801
Noah J. Elwood, PE(603) 766-1870
appledoremarine.com

Appledore Marine Engineering is a dynamic consulting engineering firm dedicated to providing marine/waterfront design, and inspection services around the world. Our home office is located in Portsmouth, New Hampshire, a waterfront city that offers history, culture, and recreational opportunity in a thriving business climate.

Our project approach is derived from our core values

  • Pride in Work
  • Exceeding Client Expectations
  • Delivering Value to our Clients
  • Maintaining a Positive Attitude
  • Employee Honesty and Character
  • Doing What is Right, No Matter What
  • Being Respectful to our Clients, Subcontractors, and Employees
  • Giving Back to our Community

Aries Engineering, Inc.

46 South Main StreetConcord, NH 03301
George C. Holt, PG(603) 228-0008
aries-eng.com
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46 South Main StreetConcord, NH 03301
George C. Holt, PG(603) 228-0008
aries-eng.com

In 1987, Aries began with a vision to seamlessly integrate the aspects of engineering and hydrogeology as they apply to the investigation and remediation of hazardous waste sites and water supply protection projects. Aries has evolved over the past three decades to become a well-respected environmental consulting firm that has successfully completed projects ranging from basic environmental site investigations to complex remedial actions at Superfund sites. Aries is committed to providing quality, cost-effective and responsive environmental solutions to private, municipal, and state clients. Our familiarity and in-depth understanding of federal, state and local environmental rules stem from decades of environmental project work throughout the Northeast and the United States. Aries keeps track of the ever-changing environmental regulations so our clients don’t have to, and we assist our clients to develop systems that allow them to better manage their environmental compliance needs.

ATC Group Services LLC

150 Zachary RoadManchester, NH 03109
Steven Low(603) 647-7077
atcgroupservices.com
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150 Zachary RoadManchester, NH 03109
Steven Low(603) 647-7077
atcgroupservices.com

ATC is a national provider of integrated environmental consulting and engineering services. Our firm offers comprehensive expertise in air, land, and water combined with full design, project management, and implementation services to handle any challenge from consulting to completion. Every project starts with identifying the best way to achieve our clients’ goals and addressing the issues inherent to their facilities and needs. This involves understanding not only their business objectives, but also the political and stakeholder concerns that go along with managing and resolving environmental issues.

Our diverse, multi-disciplinary staff brings a breadth of technical knowledge and experience to this task so we can respond to project demands promptly and accurately. ATC also offers the distinct advantage of having a local presence, fully backed by a network of subject matter experts from around the world. We have the geographic coverage and range of offerings to support every project. Expect Excellence.

BETA Group, Inc.

889 Elm StreetManchester, NH 03101
John Byatt, PE(844) 800-2382 Ext. 7148
beta-inc.com
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889 Elm StreetManchester, NH 03101
John Byatt, PE(844) 800-2382 Ext. 7148
beta-inc.com

BETA provides state agencies, municipalities, and private clients with planning, engineering, design, asset management, and construction services. Founded by Michael E. Grilli, PE, the firm started in 1982 with three employees working from a small office in Rhode Island. From the start, BETA’s mission has been to improve the communities we live and work in with integrated solutions. Staying true to that mission, and our commitment to our clients, has helped us grow to the regional leader we are today. Over 30 years later, BETA has expanded to five offices throughout New England and proudly offers a broad range of planning, engineering, and landscape architectural services.

BSC Group

150 Dow StreetManchester, NH 03101
Kelly O'Neill(617) 896-4300
www.bscgroup.com
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150 Dow StreetManchester, NH 03101
Kelly O'Neill(617) 896-4300
www.bscgroup.com

Founded in 1965 to provide engineering-oriented surveying services for large infrastructure and land development projects, BSC Group has evolved over more than five decades to provide fully integrated services to support a broad range of projects in the built and natural environments.

Integrating the talents of skilled engineers, planners, environmental scientists, landscape architects, software developers, and land surveyors, BSC has continually applied technical excellence to projects in the transportation, energy, land development, and government markets.

BSC brings a team planning and design approach to New England’s infrastructure and economic development projects. Our employees combine their analytical and creative skills to fulfill client goals. The work we perform builds on BSC’s history and experience while looking to the future.

CDM Smith Inc.

670 N. Commercial Street #208Manchester, NH 03101
David Polcari(603) 222-8300
cdmsmith.com
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670 N. Commercial Street #208Manchester, NH 03101
David Polcari(603) 222-8300
cdmsmith.com

CDM Smith provides lasting and integrated solutions in water, environment, transportation, energy and facilities to public and private clients worldwide. As a full-service engineering and construction firm, we deliver exceptional client service, quality results and enduring value across the entire project life cycle. Our client base focuses on government and industry. The firm is distinguished by our leadership and flexibility in design-build and alternative delivery approaches for environmental and infrastructure projects.

CHA Consulting, Inc.

11 King StreetKeene, NH 03431
Robert J. Faulkner, PE(603) 357-2445
chacompanies.com
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11 King StreetKeene, NH 03431
Robert J. Faulkner, PE(603) 357-2445
chacompanies.com

CHA Consulting, Inc. is a highly diversified, full-service engineering consulting firm working to responsibly improve the world we live in. With decades of experience, CHA brings together the talent, technology, and partnerships to meet our clients’ evolving needs. Located throughout the United States and Canada, we provide a wide range of planning and design services to public, private and institutional clients.

Our talented professionals strive to elate our clients in everything we do. We act as your single point of contact from start to finish, utilizing technology advancements and adapting teams, schedules, budgets and services to each unique challenge. Our client focus is driven by trust and collaboration. Together with you, we design, study, manage, and build projects that enhance our world.

At CHA, engineering and client engagement go hand-in-hand. Providing both yields amazing value… and amazing results.

CMA Engineers, Inc.

1 Sundial Ave #510NManchester, NH 03103
Philip A. Corbett, PE(603) 627-0708
cmaengineers.com
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1 Sundial Ave #510NManchester, NH 03103
Philip A. Corbett, PE(603) 627-0708
cmaengineers.com

CMA Engineers is a consulting engineering firm specializing in civil and environmental engineering.

On behalf of all clients, and in all of its projects, CMA Engineers strives to emphasize:
• Responsiveness and reliability
• Technical competence
• Creative approaches to problem-solving
• Proper perspective and context
• Professionalism

CMA Engineers is a civil and environmental consulting engineering firm providing responsive engineering
services of outstanding quality to select public and private sector clients on projects that are cost-effective,
technically and environmentally sound, and innovative when appropriate. CMA Engineers is managed in a
manner to assure a sustainable, ethical, and financially sound professional practice.

Collins Engineers, Inc.

650 Islington Street #1Portsmouth, NH 03801
Dan O'Connor, PE(603) 334-4742
collinsengr.com
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650 Islington Street #1Portsmouth, NH 03801
Dan O'Connor, PE(603) 334-4742
collinsengr.com

In 1979, Collins Engineers, Inc. opened its doors in Chicago providing engineering services in structural and transportation analysis and design, and underwater engineering. It was in the field of underwater engineering that Collins pioneered the use of professional engineers as diving inspectors in the evaluation of underwater structures. Today, Collins is an ENR Top 500 Design Firm and provides design and analysis services coupled with field experience to the transportation, marine, construction, and land development industries. Collins’ insistence on obtaining firsthand knowledge means that our engineers are on the project from start to finish, from the initial on-site inspection to the design of repairs, from performing the construction administration to following up with construction inspection. Not only does Collins incorporate this valuable knowledge into its engineering services, Collins applies it to the advancement of the industry as a whole. Continually on the leading edge of standards and methodology, Collins provides engineering ingenuity and solutions to complex problems, and realistic, honest answers.

Comprehensive Environmental, Inc.

21 Depot StreetMerrimack, NH 03054
Matt Lundsted, PE, CFM(603) 424-8444
ceiengineers.com
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21 Depot StreetMerrimack, NH 03054
Matt Lundsted, PE, CFM(603) 424-8444
ceiengineers.com

Comprehensive Environmental Incorporated (CEI) was founded by Ms. Eileen Pannetier, a businesswoman, biologist and nationally recognized water quality expert. CEI’s focus on satisfied clients and sound engineering practices has allowed the firm to remain independent and resourceful with the ability to hire and create jobs while maintaining the job security that allows CEI staff to thrive. CEI is still lead by Ms. Pannetier with the help of Mr. Cote and the addition of seven other principals, employees promoted from within. This leadership is the driving force behind CEI’s expertise and success in water supply, wastewater, stormwater, transportation, water resources, hazardous waste engineering and environmental consulting services. Over 25 years have passed since Ms. Pannetier and CEI began serving the New England region – now expanded into several other regions of the country, Although CEI is now working with clients nationally, the firms’ original notion has stayed the same – to provide superior service while creating a work environment that puts clients and employees first.

DuBois & King, Inc.

18 Constitution Drive, Suite 8Bedford, NH 03110
Robert H. Durfee, P.E., SECB(603) 637-1043
dubois-king.com
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18 Constitution Drive, Suite 8Bedford, NH 03110
Robert H. Durfee, P.E., SECB(603) 637-1043
dubois-king.com

Founded in 1962, DuBois & King is a multidisciplined professional consulting firm providing planning, engineering, and construction phase services in the areas of transportation, site development, water and natural resources, water/wastewater, energy production, telecommunications, and building systems.

A premier consultant in New England for more than a half-century, DuBois & King provides professional services in civil, structural, environmental, mechanical, and electrical engineering. In our planning and design efforts, we are dedicated to seeking results that contribute to the health, safety, and well-being of the communities we serve. The firm provides a team of integrated professionals that collaborate on challenges and opportunities in the natural and built environment.

Erdman Anthony

424 Fore StreetPortland, ME 04101
John "Jack" V. Madden, PE(207) 314-5110
erdmananthony.com
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424 Fore StreetPortland, ME 04101
John "Jack" V. Madden, PE(207) 314-5110
erdmananthony.com

Erdman Anthony is an employee-owned multidisciplinary engineering firm dedicated to developing superior infrastructure solutions. We meet expectations by delivering quality results.

From the start, our firm assigns the right team members to your project — experienced, dedicated, and completely engaged employee-owners who know their success is dependent on yours. Positive customer feedback, a high level of repeat business, and the numerous awards our projects receive each year across a broad spectrum of disciplines are proof of our dedication to your goals. Plus, our quality management system is certified to the ISO 9001:2015 standard.

Our wide range of services offers engineering solutions unlike our competitors’, and our geographic coverage throughout the eastern United States provides local, focused project management.

At Erdman Anthony, excellence is a commitment we live every day.

Fuss & O’Neill

50 Commercial Street - Gateway BuildingManchester, NH 03101
JoAnn Fryer, PE(603) 668-8223
fando.com
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50 Commercial Street - Gateway BuildingManchester, NH 03101
JoAnn Fryer, PE(603) 668-8223
fando.com

Fuss & O’Neill traces its roots to 1924 as a local survey practice founded by Hayden Griswold, Sr. Growth in the 1960s and 1970s added expertise in land development, transportation, structures, water and sewer systems, and water resources. In 1971 the firm became Griswold & Fuss, and then Fuss & O’Neill in the late 1970s. The early 1980s saw expansion into emerging fields of environmental compliance and permitting, and site assessment and remediation. Today the company continues to expand its expertise as engineering innovation and technological advances unfold. Fuss & O’Neill chooses to partner with like-minded firms who share a sense of the greater purpose of the work that we do for our clients and in our communities. We work on engagements that require high-quality consulting engineering expertise, whether it’s a discrete service or a more involved relationship. Our engineers, scientists and planners bring decades of experience delivering integrated services across our multiple disciplines, which allows us to provide a level of insight and best practices that adds to the overall quality of the project.

Geosyntec Consultants

10 Corporate Drive, Suite 1600Bedford, NH 03110
Thomas Brigham(603) 488-0071
geosyntec.com
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10 Corporate Drive, Suite 1600Bedford, NH 03110
Thomas Brigham(603) 488-0071
geosyntec.com

Geosyntec is a consulting and engineering firm that works with private and public sector clients to address new ventures and complex problems involving our environment, natural resources, and civil infrastructure. Since our founding in 1983, we have built top tier practices to meet our clients’ needs in:

  • Contaminated Site Assessment and Cleanup
  • Environmental Planning and Management
  • Air Quality Management and Air Pollution Control
  • Water and Natural Resources Assessment, Management, and Restoration
  • Water and Wastewater System Planning, Engineering, and Design
  • Geotechnical and Geological Analysis, Modeling, and Engineering
  • Waste Management Planning, Engineering, and Design
  • Civil Site Engineering and Design
  • Building Health Evaluations and Rehabilitation

GM2 Associates

197 Loudon Road, Suite 310Concord, NH 03301
Darren L. Blood, PE(603) 856-7854
gm2inc.com
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197 Loudon Road, Suite 310Concord, NH 03301
Darren L. Blood, PE(603) 856-7854
gm2inc.com

GM2 Associates, Inc. (GM2) provides comprehensive consulting engineering services to municipal, state, federal, and private clients for projects within the built and transportation environments. Established in Connecticut in 1988, GM2 has built a strong reputation founded on quality of service and responsiveness.

With over 70 employees in offices within Connecticut, Rhode Island, and New Hampshire, GM2 continues to strive to exceed client expectations. Partnering with clients and communities, GM2 applies context sensitive, practical and accelerated construction methodologies to address issues and minimize impacts. Navigating complex design parameters, our well-versed experts provide efficient and safe solutions; leaving only positive footprints.

Offering each client, the advantages of a personalized practice while providing a full range of resources, GM2’s diversity results in success. GM2 transforms today’s infrastructure for tomorrow.

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.