We are experts in
Site & Civil Engineering
Traffic Engineering
Landscape Architecture & Planning
Environmental Services
Geotechnical Engineering
Permitting
Survey
We’re more than engineers and designers—we’re collaborators, problem-solvers, and trusted partners to developers, municipalities, and architects.
At Solli, we combine multiple core disciplines to deliver land development projects that are thoughtful, efficient, and compliant from the outset. Our practical approach keeps schedules on track, mitigates risk, and drives results where it matters most—on the ground.
Our integrated team delivers complete land development solutions—spanning civil, traffic, geotech, environmental, landscape, survey, and permitting. From initial due diligence to project closeout, we keep things moving, aligned, and compliant.
We’re proudly rooted on the East Coast, with teams working across Connecticut, Massachusetts, and North Carolina. Whether you're in need of fieldwork or in-office collaboration, we’re positioned to respond quickly and effectively.

Our success is driven by the people behind the plans. At Solli, you'll find a team of engineers, surveyors, landscape architects, planners, and project managers who are deeply invested in every project’s outcome. We bring decades of combined experience and a commitment to collaboration that keeps clients coming back.

























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From a small civil practice in 2012 to a multidisciplinary firm with regional impact, our growth reflects the trust of our clients and the passion of our team.