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James W. Sewall


Levi Ladd, GISP, CMS, LSIT, rejoins Sewall as GIS analyst. Mr. Ladd specializes in geographic information systems and data collection.

James W. Sewall Company is pleased to announce that Levi Ladd has rejoined the firm after 11 years, now as a GIS Analyst. Mr. Ladd first worked at Sewall in 2006 as a cadastral mapping technician immediately after graduating from the University of Maine at Farmington with a BA in Geography/Geology.

After his initial employment at Sewall, Mr. Ladd gained experience as a GIS technician for TRC Environmental Corp., providing database design and mapping product outputs for large wind power and substation projects. He then garnered 10 years’ experience as a GIS Analyst, first at Kleinschmidt Associates and then at CES, Inc. His work involved mapping, data research, analysis, and reporting; field data collection, including planning and coordinating field crews; designing, estimating, and executing project work plans; and designing and managing personal, relational, and spatial databases. Prior to rejoining Sewall, he worked as a land survey technician and as a draftsman for engineering projects.

Mr. Ladd’s professional credentials include GIS Professional (GISP), Certified Mapping Scientist (CMS) and Land Surveyor-in-Training (LSIT).  Sewall’s Chief Operating Officer, Dave Stevens, says, “We are delighted that Levi has rejoined our company.  His project management experience, aptitude for identifying flexible ways to realize project goals, and broad background in cartography, GIS design, and survey will benefit many areas of the Company, particularly those that involve GIS and data collection projects.“

Mr. Ladd works out of Sewall’s Old Town, Maine office. He can be reached at (207) 817-5441; Email:

About Sewall: Founded in 1880, Sewall specializes in natural resources, energy, and infrastructure, with 138 years' experience in civil engineering, surveying, and forestry consulting; 70 years' in remote sensing; and 30 years' in GIS and application development. For further information, please visit, or call Dave Stevens at (207) 817-5555;


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