Business Details
50+ Years
experience
Your Trusted Engineering Partner in Tewksbury, MA
Founded in 1954, we have dedicated decades to delivering engineering excellence, shaping infrastructure that enhances community safety, sustainability, and connectivity. Our multidisciplinary team combines technical expertise with a commitment to collaboration, integrity, and responsiveness, ensuring tailored solutions for transportation, structural, water resources, and environmental projects. With a legacy of growth and client-centric service, we prioritize innovation and adaptability to address evolving infrastructure challenges. Our leadership in New England is built on over 70 years of experience, fostering strong client relationships and a culture of continuous learning.We emphasize diversity, equity, and inclusion, driving innovation through diverse perspectives. Our work extends beyond projects to community engagement, supporting local initiatives and sustainable development. As a trusted partner, we deliver cost-effective, high-quality results aligned with client goals, ensuring projects meet regulatory standards and exceed expectations. Our dedication to technical excellence and client satisfaction remains unwavering as we continue to shape resilient, equitable communities.
Services
Transportation Engineering
Structural Engineering
Water Resources Engineering
Civil/Site Engineering
Environmental Permitting
Landscape Architecture
Geomatics
Construction Administration
Details
- Year established: 1954
Highlights and features
- We offer over 70 years of engineering experience since 1954.
- Our multidisciplinary team delivers tailored infrastructure solutions.
- We prioritize sustainability, safety, and community-focused design.
- Our leadership includes certified professionals with industry expertise.
- We maintain a client-centric approach with transparent communication.
What people say
Expertise in infrastructure
Timely project completion
Sustainable solutions
Strong client focus
Services
Transportation Engineering
We optimize transportation systems for safety, efficiency, and sustainability, managing roads, highways, railways, and public transit. Our services include intersection design, traffic signal planning, and ADA compliance evaluations. Clients benefit from cost-effective solutions that enhance mobility and community connectivity.
Structural Engineering
Our team designs and inspects bridges and transportation structures to the highest standards, prioritizing safety and durability. Services include steel beam design, culvert rehabilitation, and fracture-critical inspections. We ensure structures meet regulatory requirements while minimizing environmental impact.
Water Resources Engineering
We provide comprehensive water resource solutions, including stormwater management, floodplain studies, and sewer system design. Our expertise ensures sustainable water distribution and wastewater treatment, addressing both urban and rural infrastructure needs with innovative, compliant designs.
Environmental Permitting
We streamline environmental permitting processes for federal, state, and local projects, ensuring compliance with agencies like MassDEP and USACE. Services include wetland delineation, wildlife habitat assessments, and mitigation planning, reducing delays and enhancing project approvals.
Geomatics
Our geomatics team delivers precise topographic, boundary, and utility surveys using advanced technology. Services support infrastructure projects with accurate data for design, construction, and asset management, ensuring efficient project execution and regulatory compliance.
People
Ko Ishikura
Principal & CEO
Ko Ishikura leads with over 30 years of engineering experience, driving growth and innovation since acquiring Green in 2006. His vision focuses on client collaboration, technical excellence, and sustainable infrastructure solutions.
Frank Tramontozzi
Senior Vice President
Frank Tramontozzi oversees strategic operations with expertise in transportation and municipal projects, ensuring high-quality service delivery and client satisfaction across New England.
Dawn Connelly
Senior Vice President
Dawn Connelly specializes in environmental permitting and regulatory compliance, guiding complex projects through federal and state requirements with precision and efficiency.
Michael Cruz
Vice President - Structural
Michael Cruz leads structural engineering initiatives, focusing on bridge design and inspection, with a commitment to safety, innovation, and technical excellence in infrastructure projects.
Questions
What engineering services does Green International Affiliates offer?
We provide transportation, structural, water resources, civil/site, environmental permitting, landscape architecture, geomatics, and construction administration services.
Which regions does Green serve?
We primarily serve New England, including Massachusetts, Rhode Island, and Vermont, with nationwide expertise through our partnership with Lochner.
How does Green ensure project sustainability?
Our designs prioritize eco-friendly practices, low-impact development, and compliance with environmental regulations to minimize ecological footprints.
What is Green's approach to client collaboration?
We emphasize open communication, tailored solutions, and transparency, working closely with clients from initial consultation through project completion.
Is Green part of a larger organization?
Yes, we joined Lochner in 2025, enhancing our capacity to deliver comprehensive infrastructure solutions across the U.S.
Reviews (1)
Stefano B.
Mar 21, 2022
Report
Shahin & co have been an asset to our design team, getting ahead of issues on site and lending their experience in proposing unique solutions.
