Terradyn Consultants, LLC. | About us
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About us

Get to know our company

We provide civil engineering and construction monitoring services to a varied client base in southern and central Maine.

Terradyn Consultants, LLC is a small, modern civil engineering company comprised of a diverse team of civil engineers, design drafters, and support staff. Founded in 2005 in New Gloucester, Maine, we now serve clients from offices in Portland and New Gloucester. Our years of technical experience combined with our understanding and use of the latest technologies allow us to provide our clients with highly efficient & cost effective service.

Who we work with

We build trusted relationships with our clients and partners.

Our clientele have included private developers, municipalities and other consultants. We form project teams with architects, surveyors, soil scientists and other engineering consultants, as necessary to provide our clients with a full range of planning, design and permitting services.

Our philosophy

We focus on a few basic ideals: Communication, Professionalism, and Attitude.

Our philosophy is fairly simple. We make every attempt to do what we say we’re going to do, when we say we’re going to do it – and strive to accomplish this in a respectful and professional manner. While this approach may not sound particularly innovative, we’ve been told time and time again that many of our competitors do not operate this way – we don’t think that’s right.

Our Team

We’re a team of experienced, professional engineers with great attention to detail.

Jeffrey D. Amos, P.E.


Jeff founded Terradyn Consultants in 2005, and serves as President of the company as well as a project manager on many of the firm’s projects. Jeff has a diverse background in civil/site design and has been involved in the management, design and permitting of numerous projects throughout his 20 year career.

Jeff’s expertise includes subdivision planning & permitting, site planning & permitting, re-zoning applications, roadway and utility design, roadway and utility extensions, stormwater & erosion control design, construction cost estimates, earthwork volume calculations, construction observation, post construction inspections and MDEP, MDOT, NRPA & local permitting.

Jeff has served on several planning committees in his hometown of New Gloucester and serves as a volunteer assistant coach for the Gray New Gloucester High School track and field team.

Education: B.S. in Civil Engineering, 1997 University of Maine, Orono

Registrations: Maine P.E. # 10167

Michael E. Tadema-Wielandt, P.E.

Vice President

Mike is a Partner and Vice President at Terradyn Consultants and leads the Portland office. Over his 15-year career working as a civil engineer, he has helped clients build a variety of commercial, residential, and institutional projects throughout Southern Maine. Mike enjoys a challenge, and has been particularly successful designing and securing approvals for complex projects with multiple regulatory agencies. 

Mike has a degree in Engineering, Science and Mechanics from Virginia Tech and has served on the Cape Elizabeth Zoning Board of Appeals since 2014. On the weekends, he can be found enjoying the Maine outdoors with his family.

Education: B.S. Engineering Science and Mathematics, 2000 Virginia Tech

Registrations: Maine P.E. # 11567

Adrienne Fine, P.E


Adrienne is a Project Engineer at Terradyn Consultants who works on all aspects of project development from design through construction. Adrienne’s technical expertise includes stormwater analysis and design, road design, subdivision development, and site design. Adrienne joined Terradyn in 2016 and works primarily out of the Portland office.

Education: B.S. in Civil Engineering, 2011 University of Maine, Orono

Registrations: Maine P.E. # 14252

Contact us now for a free quote on your project