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James W. Sewall



Since 1880, Sewall’s mission has been constant:  we succeed by providing the highest value services to our clients and the best professional opportunities to our associates.



George N. Campbell, Jr., President
Mr. Campbell is an accomplished strategic thinker, business and community leader with a proven record of creating billions in public/private partnerships. He has developed a unique perspective as a public policy leader and private entity facilitator resulting in a reputation as an innovator, deal maker, and go-to person. Mr. Campbell possesses proven abilities in financial leadership and management. He has led two state departments of transportation from significant deficits to sound financial footing and sustainable revenues. He also represented private sector clients like LL Bean, Great Spring Waters of America (Nestlé), and General Dynamics (Bath Iron Works Shipyard) to design, gain local and state support, and helped develop significant expansion projects all above $100 million and ranging to $300 million plus. Mr. Campbell has served as Commissioner of Transportation to both Maine (1980-1984) and New Hampshire (2008-2011).


David T. Edson, LPF, Executive VP Project Development

Mr. Edson has dedicated his professional career to Sewall in successive leadership roles. He was instrumental in designing and implementing Sewall’s first geographic information system (GIS) for forestland ownership; diversifying Sewall’s services to include offerings in web-based enterprise GIS, renewable energy and environmental sciences; and expanding the firm’s geographic reach to five continents. He holds a BA in American History from Harvard College and an MS in Forestry from the University of Maine, and is a Licensed Professional Forester.


Charles Nadeau, Chief Financial Officer

Mr. Nadeaus professional and educational background demonstrates success in analytical thinking and leadership skills, including over 20 years of lead decision-making while managing start-up, turnaround, and stabilized business ventures. He founded Balance Point Management, a solutions-driven management consulting company specializing in outsourced CFO and COO services for small and mid-sized companies. Client based industries included clean energy biomass power generation; financial services; a national public private infrastructure capital firm; technology; restaurant; manufacturing; construction; and home design. He outsourced professional resources for clients, including attorneys, accountants, and engineers.

Bret V 3

Bret Vicary, PhD, MAI, LPF, CGA, President, Sewall Forestry & Natural Resources LLC

Dr. Vicary manages Sewall Forestry & Natural Resource Consulting LLC, serving private, public, and institutional clients throughout North America, Central and South America, Australasia, Europe, and Africa. He has 42 years’ experience, 30 of these at Sewall, as an economist specializing in forest appraisal, investment analysis, management, policy and economics; conservation easements; timber taxation; and litigation.  He has authored articles and seminars on forest valuation, timber inventory, and investment analysis, and is a frequent speaker at timber investment conferences. He is principal author of the NCREIF “Best Appraisal Practices,” and a Faculty Associate at the University of Maine where he received his PhD in Forest Economics and MBA.


Matthew Dieterich, Executive VP & Geospatial Services

Mr. Dieterich oversees the geospatial operations division of Sewall. In engineering, he specializes in construction management. His previous experience included providing capital program support for the Trust for the National Mall in Washington DC and overseeing master scheduling, contractor selection, contract document development, design reviews, and on-site construction management for the $120 million rehabilitation of Constitution Gardens. He also served as the program manager for the National Park Service Construction Management Services nationwide, and has overseen contracted construction support services for the Department of State at overseas embassies. Locations include Moscow, Russia; Freetown, Sierra Leone; Wellington, New Zealand; Shenyang, China; and Nuevo Laredo, Mexico.


Brett Hart, P.E, Vice President Engineering

Mr. Hart joined the James W. Sewall Company in 1999.  He has over 19 years’ experience in site development and permitting, roadway and intersection design, surveying, and construction administration.  He works with private developers, municipalities, and regulatory agencies to ensure successful completion to client endeavors.  He has successfully managed numerous projects throughout the State of Maine including master plan development, site design, roadway/utility design, state and local permitting, and transportation planning.


Diane Morabito, P.E., PTOE, Vice President Traffic Engineering

Ms. Morabito is responsible for the technical and administrative management of Maine Traffic Resources’ transportation planning projects, including traffic and parking studies. She has completed such studies as:
➢    Traffic signal design for new installations in Portland, Augusta, Oxford, &  Falmouth
➢    Traffic permitting for Hannaford stores, new Goodwill stores, The Hathaway Creative Center in Waterville, Saco Island Redevelopment, Poland Spring Plants and Spring Sources, Oxford Casino, and St. Joseph’s College in Standish
➢    School modifications/expansions including Waterville, Berwick, & Rockport
➢    Temporary Traffic Control Plans for numerous intersections for gas pipeline installations in central Maine, for utility work in Portland and Newcastle and numerous bridges.
➢    The Portland Road Traffic Management Update Study for Kennebunk
➢    Traffic engineering services to Wright-Pierce Engineers for sidewalk/bikeway projects
➢    Traffic review services for municipalities including Kennebunk, Belfast, & Saco


John Allen, Director of Survey

Mr. Allen joined James W. Sewall Company in 2008. He has more than 30 years’ experience in mapping, drafting and land surveying. His duties have included supervision of field crews and survey department; project management; new equipment research, training, and implementation; and business development. Mr. Allen has significant experience working with town and state regulating agencies, subdivision design, road layout, boundary work, and deed research.  In addition, he is familiar with Maine State, Land Use Regulatory Commission and Department of Environmental Protection regulations..


Kathy Benson, Human Resources & Safety Director

Ms. Benson is a management professional with over thirty years’ experience in building and leading teams, project management, and regulatory compliance.  Her areas of expertise include safety, production management, conflict resolution, organizational effectiveness, employee relations, labor relations, environmental, training, recruiting and benefits administration.  Strengths include analysis; communication; problem solving; interpersonal skills; ISO compliance; and OSHA regulations. At Sewall, Kathy manages the company-wide recruiting and hiring processes, day-to- day communication and administration of multi-state employee benefit programs, management of the company safety and 401 K retirement programs, and maintaining regulatory compliance in employment practices. She is a Maine Certified Facilitator and holds a Certificate in Human Resource Management from the University of Maine.


Diane Vatne, PhD, Communications & Proposal Manager

Dr. Vatne joined James W. Sewall Company in 2010. In her capacity as Proposal Manager, she is responsible for managing large cross-disciplinary proposals, including the initial rating of requests, coordinating division of responsibilities, writing and editing, and production. She edits and formats reports and technical user manuals for clients, and produces the finished products. In addition, she manages communications at Sewall, including maintenance of the corporate web site and LinkedIn page; writing and producing marketing documents, advertisements, and press releases; and coordinating conference representation and presentations.

Board of Directors


Andrew Nelson
Chairman, Board of Directors/CEO

Mr. Nelson is also a partner in Treadwell Franklin Infrastructure Capital, and most recently Managing Director of Lexden Capital, responsible for all company activities/loan programs in the New England region as well as energy, transportation, and public/private finance projects throughout North America. Mr. Nelson has 20 years in real estate and economic developent, project finance, legislative advocacy and commercial real estate brokerage/consulting.  His clients come from govern-ment and private sectors, spanning business expansion projects, economic impact analysis and innovative PPPs, representing thousands of Maine jobs and hundreds of millions in investment.


George N. Campbell, Jr.

Mr. Campbell is also a Partner in Treadwell Franklin Infra-structure Capital.  He has held multiple leadership posts in both public and private sectors. He is an accomplished strategic thinker, business and community leader with a proven record of creating billions in public/private partnerships. He has developed a unique perspective as a public policy leader and private business CEO resulting in a reputation as an innovator, deal maker, and go-to person.


Stephen Rigal Jones

Mr. Jones is also a Partner in Treadwell Franklin Infrastructure Capital.  Stephen’s demonstrated track record in infrastructure and development project finance and investment spans five continents in 23 years with major financial institutions, and most recently as a principal for Odebrecht USA’s development and investment business.  His clients have included the top engineering, construction, concession, development, utility and institutional investors in the world.


David T. Edson, LPF

Mr. Edson has dedicated his professional career to Sewall in leadership roles as Chief Executive Officer (2012-2018), President, Executive Vice-President, Chief of Operations, and Vice President of Forestry and Natural Resources. A licensed professional forester, Mr. Edson joined Sewall in 1974 as Forest Technician. He was instrumental in designing and implementing Sewall’s first geographic information system (GIS) for forestland ownership, use and covertype. In 2001, Mr. Edson partnered with Dr. James H. Page, then Sewall’s Executive Vice President, to acquire Sewall, in the process transforming the firm from family to management ownership.


Kay Rand

Kay Rand has extraordinary experience developing state and national public policy, having most recently worked with US Senator Angus King as his chief of staff, and previously as his policy director and chief of staff when he served as the Governor of Maine for two terms. She brings a wealth of knowledge in business consulting from her experience as the managing director of Bernstein Shur Government Solutions, the Consulting arm of the law firm, Bernstein Shur. Her unparalleled talent and leadership skills will help move Sewall and our State forward.





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