- Duncan-Parnell: Duncan-Parnell sells geospatial and surveying equipment, field supplies, software, and training.
- Emlid: Emlid sells RTK GNSS receivers, modules, and software for surveying and related field work.
- Hemisphere GNSS: Hemisphere GNSS provides satellite positioning and heading products and services.
- JAVAD GNSS: JAVAD GNSS designs and manufactures positioning and navigation products for geospatial and aerospace applications.
- Juniper Systems: Juniper Systems provides rugged computing and geospatial products for field data collection and GIS mapping.
- Leica Geosystems: Leica Geosystems provides measurement and surveying products and services for professional users.
- Seiler Geospatial: Seiler Geospatial offers equipment, software, and support for surveying, GIS, scanning, drones, construction, utilities, and infrastructure work.
- Spectra Geospatial: Spectra Geospatial offers surveying, GIS, and construction products including GNSS and GPS receivers, optical total stations, data collection hardware, field and office software, and construction tools.
- Topcon Positioning Systems: Topcon provides positioning technology and equipment for surveying, civil engineering, construction, and other industries.
How to choose
Start with the work your crews do. A firm running boundary surveys, construction layout, and utility mapping may need different receivers, controllers, and corrections than a firm focused on site design. List the required accuracy, typical job conditions, and how crews will transfer field data to the office. Then compare equipment against those tasks.
Check fit for your firm's size. A small team may value simple setup and shared equipment. A larger firm may need user management, fleet support, and consistent workflows across crews. Ask what happens when a receiver or controller fails, including repair turnaround, loaner equipment, and support hours. Read the service terms closely. Confirm warranty coverage, software subscriptions, renewal terms, and any limits on data access or export.
Test integration before buying. Bring a sample project and confirm that coordinates, units, feature codes, and file formats carry into your existing survey, CAD, and GIS tools without manual rework. Check compatibility with your current data collectors and correction services. A field demonstration is useful. Have a crew member who will use the equipment run it.
Plan for training time. Ask how long a typical crew needs to learn setup, calibration, job workflows, and troubleshooting. Find out whether training is included, available remotely, or offered on site, and whether new hires can access refresher materials. Request references from firms with similar crew size, project mix, and local conditions. Ask those firms about support after the sale, not just initial performance.
Verify local requirements before committing. Where state or agency approvals apply, confirm that the exact equipment configuration and correction method meet them. Get that confirmation in writing.
- Which service, warranty, renewal, and data export terms apply?
- How does this package fit a firm of our size and project mix?
- Can you demonstrate data transfer with our existing tools and a sample job?
- What training is included, and how much crew time should we plan?
- Can you provide references from similar firms and written confirmation of relevant state approvals?
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