Thornton Land Surveying is a locally owned and family-run operation as well as being a recognized veteran-owned company, currently employing seven people, most of whom reside in Gig Harbor and Tacoma.

Our two principals, Gary Proctor, a retired Marine Corps LT Colonel, and David Proctor, also a Marine Corps veteran, are both licensed land surveyors. Each has close to 20 years of experience in boundary resolution, topographic mapping, and all other aspects of the surveying industry. they gained their experience via first hand observation of and tutoring by their father who was also a surveyor licensed in Washington State.

Both David and Gary have a wide range of projects behind them varying from boundary determinations, residential subdivisions, aquatic leases, bathymetric surveys, GPS ,to 3-D high definition laser scanning and flood mapping. Their backgrounds and experiences have given them excellent time management skills.

Throughout their careers they have forged lasting relationships with their clients. From these connections they draw the ability to rapidly establish as exceptional working relationship with both the professional community and government agencies.

Don Wilson, our primary crew chief, is a U.S. Army veteran who trained in surveying while in service and subsequently retired. He has been with our firm for over ten years.

Gary A. Proctor, PLS
(Owner & President)
David S. Proctor, PLS, CFedS
(Owner & Vice President)

Thornton Land Surveying

8801 State Route 16 NW, Suite G (PO Box 249)

Gig Harbor, WA 98335

Tel: 253-858-8106



Monday – Friday : 7:30 a.m. to 4:30 p.m

Closed Holidays