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


Chapter Golf Outings Announced

Several PLSO Chapters host golf outings each summer.  Information will be posted here as it is received.

Cleveland Chapter – Friday, July 13

2018 Golfers Reservation Form

2018 Cleveland Chapter Hole Sponsor form (1)

Miami Valley Chapter – Friday, July 13

2018 Golf and Sponsorship Form

Central Ohio Chapter – Friday, July 20

2018 Golf and Sponsorship Form

Spring Ethics Workshop Announced

PLSO will offer a 2-hour Surveying Ethics CPD workshop on Friday, April 13 from 2 –4pm at the Columbus office (150 East Wilson Bridge Road, Lower Level Conference Room, Worthington, OH 43085).

Topic:        Surveying Ethics  (this session will satisfy the 2 hour ethics requirement!)

Speaker:             John Greenhalge, Exec Director, State Board of Registration

PLSO members – $50 per person

Non-Members of PLSO – $80 per person

CLICK HERE TO Register online with a credit card payment

CLICK HERE to print PDF Registration Form

2018 Conference a Success!

Take a look at scenes from the Conference and perspectives from some who attended.

Thanks to Dan Davis for video and editing!

NGS Releases Blueprint for NATRF 2022

NGS has posted a document detailing the plans for NATRF 2022 project.

CLICK HERE to view the information.

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.

New Ohio Surveying News

CLICK HERE for the current issue of Ohio Surveying News

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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150 East Wilson Bridge Road, Suite 300, Worthington, OH 43085 | Phone (614) 761-2313 | Fax (614) 761-2317 |