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Sewall provides professional engineering, permitting, and survey services, providing end-to-end delivery for projects, large and small. We know that to provide the most comprehensive service for our clients, our team must work to understand a project’s goals and how they interact with one another. To inquire about Sewall and/or Sevee & Maher Engineers‘ suite of services please see our office locations and contact us with the form below.

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Sewall Engineering
77 Exchange Street, Suite 401
Bangor, Maine 04401
(800) 648-4202
(207) 827-4456









Sevee & Maher Engineers Headquarters 
4 Blanchard Road
Cumberland, Maine
(207) 829-5016

Sprague Signs Offtake Agreement with Biofine for the Carbon-Negative Biofuel EL100

The agreement is a significant step towards decarbonizing the heating oil market and commercializing Biofine’s patented technology. Biofine Developments Northeast Inc. (Biofine) and Sprague Resources LP (Sprague) are pleased to announce a transformative, long-term agreement that will bring the next generation of advanced biofuel, ethyl levulinate (EL), to the market. Sprague will also market EL, […]

TFIC Affiliate BDNE Agrees Biorefinery Site Lease with Lincoln, ME

On March 20, 2023, the Lincoln Town Council voted to approve a 20 + year lease between the Town of Lincoln and Biofine Developments Northeast (BDNE) for the development of a biofuels refinery on the site of the former Lincoln Pulp & Tissue Mill, now known as the Lincoln Technology Park. Construction of the project […]