Professionalism, Innovation, and a Commitment to Quality

Corporate Profile

Founded in 1880, James W. Sewall Company provides comprehensive services in geographic information management for municipal government, utilities, and the natural resource industry. The largest and oldest mapping firm in the Northeast, Sewall is experienced in GIS development and maintenance, utilities data management, and natural resource valuation. Sewall has produced natural resource mapping for more than 15 million acres of land, managed data for 100,000 miles of interstate gas, electric, and telecommunications systems, and mapped over 850 communities across the nation. Our success on a wide range of projects is based on core technical expertise in aerial photography, surveying, photogrammetry, cadastral mapping, software development, forestry, and engineering.

INTEGRATED SERVICES
With offices in Maine, New York, Kentucky, North Carolina, and South Carolina and five aircraft based at two airports, Sewall is equipped to meet the needs of a diverse and geographically broad client base. Whether a project requires data capture for highly accurate landbase development or integrated GIS services, Sewall can respond rapidly using advanced aerial photography, airborne GPS, and inertial measurement technologies. Sewall analysts are ready to produce digital parcel, natural resource, and utilities infrastructure mapping compatible with existing GIS or to assist clients with new system development. To reduce the cost of GIS technology entry and maintenance, Sewall provides enterprise data management services, including data hosting and on-line maintenance, hardware and software management, and user application development. Sewall programmers design customized modular software tools to support utility and natural resource applications.

TECHNICAL EXPERTISE
Our most valued resource is our personnel, some of whom have been with the firm for over three decades. With a broad range of expertise and years of project experience, Sewall professionals have earned recognition for dedicated customer service and superior project performance. For each project Sewall chooses the best possible combination of experienced in-house and on-site technical personnel to assess project requirements, identify project issues, and review performance results. Sewall staff are known to deliver expertise and service beyond the specified scope of work.

PROFESSIONAL STANDARDS
During a century of service, Sewall has established long-term relationships with clients based upon high standards, effective communication, and shared objectives. During every stage of a project, Sewall works closely with clients to understand thoroughly their expectations and to meet their unique, specific needs.

To meet project specifications and contractual requirements, Sewall sets rigorous standards of control for staff performance and delivered products. Sewall analysts systematically check data for accuracy, integrity, and consistency, and senior staff monitor data handling to control productivity, project cost, and scheduling. Staff training, resource management, data security maintenance, and cost reporting are procedures integral to every project phase. At project closure, Sewall surveys clients to assess their level of satisfaction with Sewall services and products.

This disciplined approach to project management has earned Sewall the confidence of clients throughout the natural resource and utilities industries and at all levels of government. In fact, the majority of Sewall's business is with repeat customers.

Sewall is a business partner with ESRI, Autodesk, Bentley Systems, and Intergraph Corporation.