Haley & Aldrich, Inc. is committed to delivering the value our clients need from their capital, operations, and geotechnical and environmental projects. Our one-team approach allows us to draw from our over 950 engineers, scientists, and constructors in 35 offices for creative collaboration and expert perspectives. Since our founding in 1957, we have one goal in all we do: deliver long-term value efficiently, no matter how straightforward or complex the challenge.

A consulting engineering firm providing technical and procurement support services to agencies which operate passenger rail services. Assists clients in the procurement of rail vehicles and the related systems that power and control the vehicles. 

Since our founding in 1951, Hazen and Sawyer has focused on two things: providing safe drinking water and controlling water pollution. If you’re trusted to protect public health or the environment, we can help.

For over a century, HDR has been a premier provider of quality engineering services to build the nation’s infrastructure and shape communities. We are an employee-owned engineering, planning, architecture and professional services firm with nearly 10,000 staff in more than 225 offices around the world. HDR has completed projects of all sizes, in all sectors in 60 countries. We do things right to make great things possible.

Highpoint Engineering is a full-service civil engineering and consulting firm led by managing principals Doug Hartnett, and Mike Fabbiano. At Highpoint, our leadership fosters an entrepreneurial culture where project experience and design efficiency are key to our success. Our lengthy civil engineering experience dating back to 2010 distinguishes us from our peers and adds value for our clients. Each and every client receives unique services and benefits from the diverse skill set of our employees. Our team is always working to lower costs, remain on time and ultimately provide the best work we can for our clients.

HNTB Corporation provides comprehensive planning, engineering and architectural services to public and private clients throughout the country. The firm's staff includes specialists in virtually all aspects of the planning-design-construction process including bridge, rail/transit, highway, civil, tunnel and geotechnical. In 2024, HNTB celebrated the 110th anniversary of its founding and its 70th year in Massachusetts.

Horsley Witten Group is a leading edge engineering, planning, and environmental consulting firm. Our multidisciplinary team approach integrates resilience, sustainable civil engineering, urban design, and landscape architecture. Our services include site design, green infrastructure, smart growth planning and community design, zoning regulation review, water and natural resources assessment, and emergency preparedness. 

HSH Provides traffic and civil engineering, transportation planning, construction services, and public involvement for public and private clients. HSH takes a creative and collaborative approach with clients, relying on sound technical, planning, and engineering expertise. We are more than engineering experts at HSH - We are the keystone of complex projects.

IMEG provides mechanical, electrical, plumbing and fire protection design and CA services for a broad base of clients.  Clients include airport authorities, federal, state and municipal agencies, public and private higher education facilities, and K-12 public and charter schools.  The firm specializes in the application of BIM and LEED for all disciplines.

JCK Underground, a Schnabel Engineering Company, offers specialized services to address the most challenging underground projects, developing efficient solutions while maintaining a focus on the clients’ broader project goals. Blending fresh ideas with the tried-and-trusted, we provide an essential balance of skills and resources that meet project needs. Our diverse pool of seasoned talent has a unique ability to identify and prioritize the physical and indirect risks inherent to working underground, and effectively manage them.  Additional website: https://www.schnabel-eng.com/

KCI Technologies is an employee-owned engineering, consulting and construction company which serves government agencies, institutional and private-sector clients.

Kimley-Horn is one of the nation’s premier planning and design consulting firms. With over 3,000 staff members in more than 80 offices across the U.S., the firm offers full services in a wide range of disciplines. Clients know Kimley-Horn for the creativity of our solutions and the sense of urgency we bring to each project. We take a clients’-eye view of our work, planning and designing to accomplish the client’s goals in the most effective manner.

Kittelson & Associates, Inc. provides comprehensive transportation engineering, planning, and research services to government and private organizations since 1985. Our skilled professionals and national experts offer decades of progressive research, technological innovation, and a diverse portfolio of industry-leading work. From site design to statewide transportation system planning, KAI combines transportation and land use to produce integrated and innovative solutions that achieve the goals of local communities. 

Kleinfelder’s engineers, architects, scientists, and construction professionals provide solutions to improve transportation, water, energy, and other private infrastructure needs.  Through client-collaboration and a robust history of successful project delivery, Kleinfelder develops innovative, cost-effective, and practical solutions that offer our clients increased flexibility, continuity, and coordination across all aspects of a project.

LGCI offers geotechnical services for both private and public-sector clients. We are MassDOT pre-qualified.
We offer our services for all phases of projects, including, geotechnical studies during site selection and during design. We also offer construction services including, preconstruction condition surveys, geotechnical construction specifications, construction observations, and vibration monitoring.

Provide professional services in areas of civil, geotechnical and structural engineering for projects associated with State transportation agencies and private clients.   

Langan provides an integrated mix of engineering and environmental consulting services in support of land development projects, corporate real estate portfolios, and the oil and gas industry. Our clients include developers, property owners, public agencies, corporations, institutions, and energy companies around the world.

Since 1978, Lin Associates, Inc. has provided structural engineering and construction administration services to a diverse client base. The firm's personnel have extensive project design and management experience and senior personnel of the firm are registered professional engineers with active registrations in most New England States.

LiRo-Hill, ranked ENR’s #10 CM-for-Fee firm (2018),  provides integrated Construction, Design, and Technology solutions. Services include: Program & Construction Management; Resident Engineering & Inspection; Environmental; Civil, Structural, MEP, Telcom Engineering; Architecture & Sustainable Design; Virtual Design, Construction, & Operations; GIS; Survey; and Disaster Response Management. For more information, visit www.liro.com. 

We’re engineers, driven to make lives better. Engineering your vision to reality. If you’ve got a vision, we’ve got the team to bring it to life. When you choose McClure, you’re choosing a partner with an unmatched depth of experience, all the specialists you need, and a passion for building great communities.

McFarland-Johnson (MJ) is an employee-owned, multi-disciplined engineering consulting firm, providing a full complement of services to our clients for over 75 years.  Our diverse staff develops innovative solutions that provide sustainable results on a wide range of highway, bridge, building, airport, and civil engineering projects, as well as mechanical, electrical, and plumbing designs for buildings.  Our staff also includes aviation planners and environmental scientists that complement our engineering staff, making McFarland-Johnson a well-rounded planning and engineering firm capable of serving all our clients’ needs.

Michael Baker International offers a comprehensive range of innovative services and solutions in support of federal, state, and municipal governments, foreign allied governments, and a wide range of private development and commercial clients. The firm’s focus is on the safety and security of people across the world through planning and engineering improvements to infrastructure and the environment, and through protection of our quality of life and freedom in support of national and international security.  With more than $1 billion in annual revenue, Michael Baker International has more than 5,000 employees in over 90 offices located across the US and internationally.

Mott MacDonald is a $2 billion global management, engineering, and development firm. It is one of the world's largest employee-owned companies, with 16,000 employees and over 180 offices delivering sustainable outcomes for clients in 150 countries worldwide. It works on projects in the transportation, buildings, power, oil and gas, water and wastewater, environment, education, health, international development, and digital infrastructure sectors.

Nitsch Engineering specializes in providing civil engineering, land surveying, transportation engineering, structural engineering, green infrastructure and resilience, planning, and GIS services. We have worked with academic clients, developers, corporate and institutional owners, public agencies, architects, and other design professionals on private development and public infrastructure projects in 21 states and five countries. 

Nobis Group. is a multi-disciplinary consulting firm providing environmental, geotechnical, and civil engineering services to federal, state, municipal, transportation, and commercial clients. With proven expertise and established industry relationships, Nobis is a 100+ person, employee-owned company with a legacy of collaboration, responsiveness, employee-focused workplace culture, and community involvement.

Civil and environmental engineering consultants for commercial, industrial, residential and governmental clients. Services include all phases of civil engineering, site analysis, evaluation and design, environmental impact reports, air quality, hydrogeologic studies, potable water supply, soils analysis, construction plans and specifications for competitive bidding, construction layout.  

Orion Engineers and Associates (Orion) delivers comprehensive planning, design, and construction management services, specializing in aviation infrastructure. Our team brings decades of experience working on airside projects across the U.S.  Since our founding in 2016, we've been committed to delivering practical, value-driven solutions that enhance the safety, efficiency, and sustainability of airports. With headquarters in Honolulu and offices in Washington and Massachusetts, we maintain a close-knit, client-focused approach, ensuring personalized service and strong client relationships that set us apart as trusted advisors in the aviation engineering sector.

Pare Corporation provides a diverse array of services: land use and economic development planning, intermodal transportation planning, civil and environmental engineering, waterfront and coastal engineering, transportation engineering, structural and geotechnical engineering, dam engineering, site planning and design, and LEED-accredited and sustainable design services. By combining the resources of our experienced professional staff, and staying at the forefront of emerging technologies, we maintain a track record of solid accomplishment and handle projects of any size with efficient, responsive service.

Additional Massachusetts office:

Pare Corporation
14 Bobala Rd, Suite 2B
Holyoke, MA 01040
T: 413-507-3448

Reliance Engineers is a multi-disciplined professional engineering consultant located in the Boston area. We provide professional engineering services to public agencies,  municipalities, consultants and private developers. 

We provide program, construction & engineering management. We specialize in 
construction scheduling, project management services and claims management as well
as data analysis and software development. 

RINA North America is a national engineering, design, project management and construction firm with a long history of success on a variety of complete projects. Operating from offices across the country, our technical capabilities are diverse, focusing on the transportation, rail, water resources, energy, renewable and geospatial markets.

Sanborn Head is an engineering and technical consulting firm serving a broad array of private, public and institutional clients in the development, energy, industrial, and solid waste markets.  Our multi-disciplinary team of engineers and scientists specializes in integrating our core expertise in earth, energy, and environment to deliver innovative, yet practical solutions to our clients.

98 North Washington St
Suite 101
Boston, MA 02114
857.327.9730

SLR is a leader in global environmental and advisory services. We work with clients across seven sectors, delivering over 30 technical disciplines from a network of offices in Europe, North America, Asia-Pacific and Africa. As a company with ambitious growth targets, we are keen to extend our pool of talented employees. We are looking for individuals who can bring the right attitude, skills and experience to help us deliver our objectives. Our chosen candidate will be a person that can work in a multi-disciplinary environment and encourages collaboration. SLR is a safe and responsible partner and we contribute positively to the communities in which we operate. We offer our colleagues a diverse and rewarding place to work and by investing in our people we attract and obtain some of the leading specialists within their field. Our ‘one team’ culture is underpinned by an independent and entrepreneurial spirit and is the key to maintaining our market position and reputation with trusted client relations.

SMMA provides comprehensive site and building design services to advanced technology, corporate/commercial, educational, institutional and health science clients throughout the US. The firm offers core expertise in the areas of architecture, civil/structural engineering, planning and landscape architecture, interior design, mechanical and electrical systems engineering and project management. SMMA has a certified ISO 9001 quality management designation.

SDE provides engineering and field services for wastewater and storm water related projects. These projects include illicit discharge detection and elimination, inflow/infiltration identification, and combined sewer separation projects. The tasks include manhole inspections and surveys, water quality sampling, dyed water testing, technical analyses, infrastructure design, and construction oversight and administration. Stacey DePasquale Engineering, Inc. (SDE) has provided wastewater & storm water related services to numerous private and public clients since 1999. 

At Stantec, we always design with community in mind.

We're designers, engineers, scientists, and project managers, innovating together at the intersection of community, creativity, and client relationships. Balancing these priorities results in projects that advance the quality of life in communities across the globe. 

Steere Engineering Incorporated is a certified DBE/WBE engineering firm performing bridge and structural engineering.  Steere's bridge design experience includes the first network arch bridge built in the U.S., steel trapezoidal box girders and I-girders, as well as precast concrete bridges. We also design buildings and construction temporary works.