Support PLSO Sustaining Members

PLSO Sustaining Members are companies or individuals who provide surveying-related materials, equipment, software or services. For information on becoming a PLSO Sustaining Member, click the Become a Member tab on the home page.



City Blueprint of Toledo
Jim Driftmyer
(419) 243-7271
Fax (419) 243-6418
CBOT logo 2016

Dan O’Reilly
(614) 529-2583
Fax (614) 529-8519

Paul Naylor, PS
(800) 527-3762



Leica Geosystems
Alex Cherchian
Cell (614) 264-6722

Corporate Headquarters
(770) 447-6361 extension 345
Fax (770) 447-0710

Precision Laser & Instrument
Akron office
Mike Painter
(330) 633-4900

Columbus office
Aric Mompher
(614) 759-1000

Cincinnati/Dayton office
Frederick Bulger



Shawn Spencer





J.C. Andrus & Associates

(419) 248-3737
jca logo


Kucera International
Ronald Martin
(440) 975-4230
Fax (440) 975-4238



M.A.N. Mapping Services
Larry Mumford
(614) 876-3663


R.H. Cooper & Co. LLC
Robert H. Cooper, Jr., CIC, CRM
(614) 761-8808
Fax (614) 761-8908


Wellert Corp. 
Jim Wellert 
(330) 239-2699




Carlson Software
Tom Peak, P.S.
Ohio, Indiana & Michigan

Carlson-Logo on blueRGB




Berntsen International
(608) 249-8549
Fax (608) 249-9794


Zaenkert Surveying Essentials 

Robert Zaenkert
(513) 738-2917
(800) 262-4992
Fax (513) 738-5817


NCEES seeks input from surveyors

NCEES has extended the online survey for the Principles and Practice of Surveying exam content review to March 31, and has requested assistance from NSPS to find additional volunteers for this important study by sharing this news with NSPS members.

The information is posted online at A PDF of the news release is also available for download on this page. The survey will be used to update the specifications for the PS exam.

Ohio Valley Chapter to host workshop at Ft. Steuben

The Ohio Valley Chapter of PLSO has teamed up with Historic Fort Steuben and the West Virginia Society of Professional Surveyors to host a one-day workshop on Friday, May 5 at the Fort in Steubenville, Ohio. CLICK HERE for the details and registration form.

Year end HALF DAY workshop offered

PLSO will host a 1/2 day workshop (good for 3 hours of CPD credit) on Thursday, December 22 at the PLSO office building conference room in Columbus.  Admission is $75 for PLSO members and $150 for Non-Members.  The sessions will be instructed by PLSO Executive Director Melinda Gilpin and include: State and Federal Legislative Updates, PLSO Organizational News, and “Things Ohio Surveyors Should Know”.  If you have not attended a similar session by Melinda in the last 6 months, changes to the session will permit you to count it toward CPD credit. CLICK HERE FOR THE PDF registration form, or REGISTER ONLINE with a credit card.

2017 Annual Conference

CLICK HERE for the 2017 Annual Conference Page.

More information being added daily

Registration form now available!

New Ohio Surveying News

CLICK HERE for the current issue of Ohio Surveying News

Sad News

T. Michael Besch, P.S., Professor Emeritus at the University of Akron, passed away Wednesday, November 30.  Arrangements are pending and will be posted as they become available.  Our thoughts and prayers go out to his wife, Ann Besch, P.S., and the entire Besch family during this difficult time.

ODOT enables L2C

The ODOT CORS/VRS team has enabled the L2C signal on their CORS stations. This signal is now available to the ODOT VRS users to enhance their network corrections. Users who wish to use L2C may experience improved connectivity near tree canopy. As always, we ask that before you enable changes to your controller configurations you conduct tests to insure the results you are getting meet your accuracy expectations.

For feedback or questions, please contact Ray Foos, P.S. or David Beiter, P.E. at the ODOT Office of CADD and Mapping Services.


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