NTM Engineering, Inc.

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NTM Celebrates 15 Years of Excelled Growth

January 26, 2022

PRESS RELEASE

January 26, 2022, Dillsburg, PA — NTM Engineering, Inc. (NTM) is proud to celebrate 15 years in business. Starting as a four-person firm in 2006, our award-winning team has grown to include over sixty talented professionals and three office locations.

This milestone commemorates 15 years of serving our clients with the quality work that is synonymous with the NTM name. Our success has stemmed from our relationships with our long-term clients, the specialized skills of our staff, and volunteering in the communities that surround our office locations.  NTM has been selected as one of the Best Places to Work for the past eight years consecutively.

“NTM’s mission to provide quality work in all that we do and has been part of our culture from the start. The entire NTM team has grown not only in size, but also in our specialties and experience. NTM employees are the backbone of our company, and we look forward to sharing our continued success and building upon this exciting growth,” stated Donna Newell, MS, PE, CFM, President.

Established in 2006 and headquartered in Dillsburg, Pennsylvania, Newell, Tereska & MacKay Engineering, Inc. (NTM) employs over 60 professionals and is a registered Disadvantaged Business Enterprise in Pennsylvania, Maryland, and Delaware and a Women-Owned Small Business with the federal government. NTM has locations in State College and Philadelphia. The firm’s four principals—Donna Newell, MS, CFM, PE; John Newell, MEng, PE, CBSI; Rachel Tereska, MS, PE; and Jeffrey MacKay, MS, PE, CPESC—are all licensed professional engineers with master’s degrees in civil engineering and offer a combined 90+ years of engineering experience. 

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NTM News

NTM Engineering Announces New Leadership Reorganization

April 9, 2025, Dillsburg, PA — NTM Engineering, Inc. (NTM) is proud to announce new leadership shifts in our Wayne office and environmental division. … [Read More]

NTM Welcomes Lotfaliani to Hydrology & Hydraulics

We are pleased to welcome Shirin Lotfaliani, MS to our Hydrology & Hydraulics Division! Shirin joined NTM on March 18, 2025, as a Designer. She … [Read More]

Slovikosky Promoted to Design Engineer

Congratulations to Debbie Slovikosky for recently earning her Professional Engineer (PE) license and for being promoted to Design Engineer! Debbie … [Read More]

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NTM Engineering, Inc.
130 West Church Street, Suite 200
Dillsburg, PA 17019-1278
Phone: (717) 432-4425
Fax: (717) 432-4426

State College Office
341 Science Park Road, Suite 203
State College, PA 16803
Phone: (814) 862-9191

Philadelphia Office
30 North 41st Street, Suite 520
Philadelphia, PA 19104
Phone: (215) 397-4055

Wayne Office
435 Devon Park Drive
Building 800, Suite 803
Wayne, PA 19087
Phone: (610) 605-3104

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