Services

Energy

The Challenge During the last five years, the demand for renewable energy resources has increased dramatically, increasing the need for accurate information and analysis on potentially available resources, optimal siting, and environmental impacts and benefits. The success of renewable energy development depends on a careful preliminary assessment, planning, permitting, site and facilities development, and asset […]

Geospatial Services

Unlocking the “power of where” for each unique client need. As an ESRI Business Partner, Sewall stands in the gap between clients’ needs and the complexity of the world’s leading Geographic Information System technology. We design, build, and operate GIS solutions that address the workflow and data management challenges our clients face.  Our Geospatial Services […]

Civil Engineering

Designing it right the first time. Sewall depends on a comprehensive understanding of our client’s goals to appropriately plan and design your projects. We will guide you through the permitting process and expectations at the beginning of a project and provide you with a realistic scope of work and fee proposal to limit unforeseen expenses.    […]

Surveying

The oldest surveying firm in Maine, Sewall has conducted boundary surveys and produced topographic mapping for private and commercial landowners, business and government organizations, and utilities since 1880. Our team utilizes traditional methodologies and advanced technologies to collect the prolific data detail required to provide the accurate mapping our clients have come to expect. Standard […]

Permitting

Do I need a permit for this?  We know the answer! Sewall has worked closely with local, state, and federal regulatory agencies for decades to provide our clients with the information they need for permitting approval. This includes Site Law, NEPA, MS4, Permit by Rule, Traffic Movement, and Driveway permitting. Traffic Permitting Sewall has vast […]

Transportation & Traffic Engineering

Efficient and reliable traffic systems. Our Transportation team offers decades of experience and expertise in the study and design of infrastructure that moves people: roads, highways, bridges, bike, and pedestrian paths, signalized intersections, roundabouts, and signals including cutting edge technology like RTMS, adaptive signals, and ITS.  Our staff has successfully obtained thousands of traffic movement […]

Funding Support

When the project conversation turns to finance – let our team help We’re skilled at providing capital infrastructure planning, alternative financing, economic development, stakeholder management, creative funding solutions, access to funding through our strategic partnerships, life-cycle cost analysis, or project delivery support. Sewall’s team of experts has decades of successful experience teaming with businesses from […]

Forestry

Sewall has worked in the forestry and natural resource sectors since its inception in 1880. Markets and sectors served: Services Include: Software-as-a-Service WoodPro: GIS Software-as-a-Service for Wood ProcurementA customized geospatial application to support wood procurement personnel, track vertical inventory, and build competitive intelligence

Our Services

We are strategic thinkers who bring novel solutions to your complex and time-sensitive infrastructure projects.