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GPI’s visionary philosophy is focused mainly upon what truly makes us unique - our staff - men and women working collaboratively as one team, serving clients as; design professionals, technical specialists, administrators, and support staff; motivated by the desire to succeed. Our values of teamwork, quality, and commitment set us apart and are the key elements for our growth and continued success to create the infrastructure that people need most.

Our experts provide comprehensive engineering, design, planning, construction management, inspection, surveying, mapping, and remote sensing services to a wide variety of government agencies, municipalities, institutions, industries, corporations, private organizations, and developers.

GPI is committed to being a company that creates and reinforces a sense of belonging for all our employees and recognizes diversity and inclusion as necessary for the sustainability of our practice.
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One TEAM... Read more


Together, we create the infrastructure people need most.... Read more

Additional Culture Details

Employee Satisfaction is our top core value here at GPI. Creating a culture where employees feel engaged, appreciated, and fulfilled continues to be our priority.... Read more


To operate as one organization in diversified markets, geographies, and services, bringing added value to, and earning the trust of, our clients, ultimately resulting in financial strength for our employee-owners.


Babylon, NY


1,500 US Employees


Construction - Other

Recent Awards

What employees are saying

Each day I get to work with incredible coworkers on issues that improve our communities and the lives of our employees.

GPI encourages me to be myself and therefore I can give my very best to the company.

It’s what I’ve done for 37 years. I enjoy it.

The training I get from my supervisor and mentors

it is rewarding and I can "make it what I want". I am allowed t provide input into the office and "make it a better place"

I am constantly learning and being challenged, and feel that my contribution to the company is truly valued.

The diversity in the types of projects I get to work on. The environment is great and I get along very well with my co workers.

GPI gives people the opportunity to grow as much as they choose to - and may even push you out of your comfort zone to grow in ways you didn't realize you could.

The people in the organization

I get to do work I love while making thing better for the general public

I feel encouraged to do what I need to do to get the job done and I feel I have the support I need when I ask for it.

We are appreciated for what we do. And compensated quite fairly.

I am encouraged to grow, the project types I work on vary in nature keeping the job interesting, and I feel appreciated.

I can work independently. My supervisor is always there if needed, but if not, the confidence in me is understood - I can/will get my work done without the negativity over my head of being micro-managed.

My company genuinely cares about the employees and go to great lengths to make us feel comfortable- They are true to their values. I love the people I work with across the company and they are awesome, talented, funny and dedicated.

I feel valued and enjoy what I do

My supervisors are open to ideas and make me feel good about what I do. They utilize my skills and training, trusting that, when I say I can do something, even when it is not typically part of what is expected of someone in my line of work, I can do it. Also if a mistake is made or something doesn't go as planned, they understand, acknowledge and guide rather than ridicule, belittle and punish.

I am able to freely explore ideas that can improve our process as well as my career. Ideas are openly discussed and supported by upper management.

I get to work on a diverse range of projects and the teams are great to work with!

I enjoy the work I do and the projects I am involved with. The department I work in is very tight knit and supportive. My department head is understanding and is providing me the abilities to learn and grow.

Company Snapshots

GPI competing in the WorkForce Challenge
GPI staff and families volunteering at the Regional Food Bank.