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In 2020, Verdantas started with a vision to build a consulting company focused on our environment – making the world a better place. We then began to bring together consulting companies that all shared this common focus for a better world and put people first. Each entity that joins contributes its engineering, planning, science and technical expertise to create One Great Company to solve complex problems. They bring a legacy of excellence, a reputation of honesty and integrity, with like-minded cultures dedicated to inclusion, diversity, and collaboration. Collectively, we are experts in the environment and its supporting infrastructure who are committed to a people-focused future. Our efforts positively impact the communities we are welcomed into, our employees are allowed to balance their everyday lives, they are encouraged to grow into who they wish to become – all while putting our clients and the community we live in at the center of our actions.

Fuss & O’Neill

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.

DuBois & King, Inc.

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.

Comprehensive Environmental, Inc.

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.

Collins Engineers, Inc.

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.

CMA Engineers, Inc.

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.

CHA Consulting, Inc.

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.

CDM Smith Inc.

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.

BETA Group, Inc.

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.

ATC Group Services LLC

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.

Aries Engineering, Inc.

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.

Appledore Marine Engineering, LLC

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


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.