About Us

Geospatial Technology, Backed by People Who Know the Work

Geospatial Technology, Backed by People Who Know the Work

For over 40 years, AllTerra Central has equipped surveying, construction, mapping, forensics, and marine professionals across Texas, Oklahoma, New Mexico, and Arizona with the right technology — and the local expertise to keep it working.

Who We Are & What We Believe

AllTerra Central is a Premier Trimble dealer and one of the top performers in the US. From eight locations across Texas, Oklahoma, New Mexico, and Arizona, we sell, rent, service, and support the technology surveying, construction, mapping, forensics, and marine professionals rely on every day. But the equipment is only half of it. Our team comes from the field, so we know your workflow before you explain it. Our certified service centers get repairs back to you quickly. Local training and our own RTK network keep your crews working. We'll always recommend what fits the job, not just what's newest on the shelf.

AllTerra Central

Founding Story

1984

Western Data Systems (WDS) is founded in Houston Texas

1992

Martin Instrument is founded in Austin Texas

2018

Western Data Systems and Martin Instrument merge to form AllTerra Central

2019

AllTerra Central adds the GIS Territory for New Mexico

2021

AllTerra Central acquires the Arizona operations of Allen Instruments & Supplies

2022

AllTerra Central acquires BuildingPoint Central, expanding into the vertical construction market

TODAY

Eight locations, 150+ employees, one of the world's top Trimble dealers - and still growing!

Multiple Companies, One Vision.

What began as a small Texas-based company in 1984 has grown into one of the most trusted names in geospatial technology across the Southwest. Built through acquisitions, mergers, and a relentless commitment to the people we serve. Multiple companies, one mission, and a legacy built over four decades.

Hands-on leadership with deep roots in geospatial, field services, and operations.

Hands-on leadership with deep roots in geospatial, field services, and operations.

Bobby Hempfling

President

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Mike Minick

Executive Vice President of Sales

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Dan Riccardi

Vice President of Sales

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Kory Baxley

Vice President of Operations

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#1 Trimble Dealer in the U.S. in 2025
8 Certified Service Centers
Expedited Repairs
20+ Years Serving Professionals

We believe in showing up for the communities we call home.

We believe in showing up for the communities we call home.

Every year, we select local non-profits doing meaningful work and make a financial gift to help them go further.

Houston GIS Day

(www.houstonareagisday.org)

Building the future of our industry starts in the classroom. Since 2001, AllTerra Central has mentored Houston-area high school students at GIS Day with hands-on Trimble equipment and drone mapping.

Texas A&M University

(www.tamu.edu)

With the Trimble Education Team, we helped equip Texas A&M's Trimble Technology Lab. Students in Construction Sciences, Geospatial and Forensics now get hands-on experience before their careers start.

Tyler Junior College

(www.tjc.edu)

Every year, AllTerra Central gives to TSPS Chapter 4 to provide surveying textbooks for incoming freshmen in Tyler Junior College's Geomatics Program. It's one small way we help the next generation of Texas Professional Land Surveyors.

Pipeliners Association of Houston

(www.houstonpipeliners.net)

Our Key Accounts team fishes for a good cause. They join industry colleagues to raise scholarship money for students headed into oil and gas through the Pipeliners Association of Houston.

Make-A-Wish and Helping Hand Home

(www.wish.org and www.helpinghandhome.org)

In 2025, AllTerra Central's holiday giving went to two organizations: Make-A-Wish, which grants wishes to children with critical illnesses, and Helping Hand Home, which helps Austin children heal from trauma and find loving homes.

Houston GIS Day

GIS Day is celebrated around the world and is one the AllTerra Central team is always proud to be a part of.  Teaching and mentoring local high school students about how GIS is used in their communities is always a great way to get them thinking about a future in our ever growing industries.  Whether we are teaching them how to use Trimble Surveying or Mapping geospatial equipment to capture and locate assets in the field or teaching them the ways drones are used to mapped our lands we enjoy spreading the word and hoping that one day we will see them out working in the industries we serve making maps and teaching others. AllTerra is proud to have been a part of the Houston Area GIS Day from day one back in 2001 and we will continue to serve our great community and work with some of the best high schools in the area. 

Texas A&M University

AllTerra Central teamed up with the Trimble Education Team and was able to provide Trimble equipment to Texas A&M University in College Station with their state of art Trimble Technology Lab and all the equipment to support the field side.  Supporting higher education is so important and allows us to make sure these students are not only ready when they earn their degrees from TAMU but when they hit their new career they can walk the walk when it comes to using the latest in Trimble Geospatial equipment.  We were we so fortunate that we were able to donate Trimble equipment into the Construction Sciences, Geospatial and the Forensics Departments.  We are here for the long haul and our teams enjoy ongoing trips to campus to educate on the equipment and keep that geospatial momentum going!

Tyler Junior College

Each year AllTerra Central donates funds to TSPS Chapter 4 and this donation allows AllTerra to donate the Surveying Textbook for incoming Freshman students to Tyler Junior College’s Geomatics Program.  The thank you cards alone make this one worth it each year. Reading each card and learning about each student’s plan and how grateful they are for one less expense is reason enough. The best part is when you attend the ceremony when they receive the books and see the wall of surveyors in the room supporting each and every student is by far the most inspiring site to see. Being a small part of their journey with something as simple as a textbook is something AllTerra will continue each year. Let’s all work to support our students who are working hard to be the next generation of Texas Professional Land Surveyors. 

Pipeliners Association of Houston

AllTerra Central’s Key Accounts team is always up to the fishing challenge and nothing keeps them from getting out there with our amazing colleagues in the industry and fishing the day away. Even though they are enjoying some great fishing they are helping to raise funds for the Pipeliners of Houston (PAH) scholarship fund. Raising these funds allows PAH to provide scholarships to those earning their education for oil and gas related fields.  With PAH putting on such fun and engaging events they have made sure these scholarships will continue to be funded. So if you see one of our guys with a fishing pole, we promise he is out doing his part for education and maybe some bragging rights. 

Make-A-Wish and Helping Hand Home

Every Christmas, AllTerra Central picks one organization to support. In 2025, we couldn't choose just one, so we went over budget and gave to two: Make-A-Wish and Helping Hand Home in Austin.

Make-A-Wish grants wishes to children with critical illnesses. They might get to be a police officer for a day or take their family to Disney World. For these kids, it's a once-in-a-lifetime experience, and every story we hear moves us.

Helping Hand Home gives hope and healing to children who have been through trauma. It provides therapy, foster care, adoption services and support for each child's well-being and education. Every child deserves a safe, loving home, and we're proud to play a small part in that work.

Upcoming Events

Oklahoma Homeland Security Conference
Oct 27 - Oct 29 In-Person

Oklahoma Homeland Security Conference

9:00 AM to 5:00 PM

Metro Tech 1900 Springlake Dr, Oklahoma City, OK

The Oklahoma Homeland Security Conference brings together experts from various fields, including Homeland Security, School Security, Law Enforcement, Health, Fire Services, and Emergency Management. It also includes officials from federal agencies, nonprofit organizations, business leaders, academic institutions, and policymakers. The conference aims to educate attendees on the latest trends in homeland security and showcase new equipment and technologies that can enhance daily operations.

Darling Geomatics Tech Expo 2026
Oct 29 - Oct 29 In-Person

Darling Geomatics Tech Expo 2026

7:30 AM to 4:45 PM

Arizona Tech Park - Tech Event Center Tucson, AZ

Darling Geomatics is hosting a Technology Expo showcasing cutting edge technologies and spotlighting the leading experts. Stop by and visit with the AllTerra Central team at our vendor booth!

Trimble Dimensions 2026
Nov 9 - Nov 11 In-Person

Trimble Dimensions 2026

8:00 AM to 5:00 PM

The Venetian Hotel, Las Vegas, Nevada

Trimble Dimensions connects professionals with the technology, expertise, and hands-on experiences helping shape the future of surveying, construction, and geospatial workflows.

We only work with the best.
 Because that's what our customers deserve.

We only work with the best.
 Because that's what our customers deserve.

Want to partner with us?

AllTerra Central has grown from a single Texas dealership into the #1 Trimble dealer in the U.S., with 150+ team members and a network of trusted vendors and partners.

Technical Support

866-565-4936
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Service Department

512-982-7908
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Other Questions?

877-309-4099
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