
GNSS SURVEYING FOR EVERYONE
Professional GNSS surveying, made for everyone on site
Survey, set out, 3D scan and control machines yourself, accurate to the centimetre. One platform, three ready-to-use packages. No specialist needed.

Trusted by 1000+ companies
More than 10 million objects measured, in more than 40 countries.


















From roads to fibre, utilities to green space: survey and set out to the centimetre, on any site.

Set out and check roads, sewers and foundations right in the field.

Map cables the moment they hit the trench and invoice the same day.

Record gas, water and power to the centimetre for the energy transition.

Design and set out gardens, parks and sports fields on site.

Set out stages, fences and cable runs, and reuse the same plan next year.
The same kit shows up on a lot of other jobs
Survey, set out, scan in 3D, import, export and share. What is not there yet is marked as such.
Coming soon: basic CAD drawing in UNI-Cloud. PDF reports are in the works.
Your KLIC data sits in the same project as your measurements, in the field and in the office.
Available from UNI-Cloud Professional.
Every point, line and project syncs to UNI-Cloud. Plan the work, share with the office and clients, and keep the field and the desk on the same page.
Everyone who works in the project gets their own login.
Draw straight in the cloud and send a finished PDF report to your client.

Bring in a full AutoCAD drawing and export to DWG, DXF, LandXML, CSV, TXT or GeoJSON.
Set up layers and attributes once, use them in the field.
Field data in the office the moment you save.
Send a project to your client with a link or a QR code.

Layers and attributes
Set them up once in the office. In the field your crew picks them from a list, so every point lands in the right layer.

Drag and drop your files
Drop a drawing or a point file, or full AutoCAD drawing straight into the project. It is on the tablet at the next sync. A drawing arrives as layers with points, lines and areas.

Share your results
One click gives your client a link or a QR code to the project. No account needed on their side. Export to DWG, DXF, LandXML, CSV, TXT or GeoJSON, in 2D or 3D, per layer or the whole project.

Our own support team in Hilversum answers the phone during office hours, on a local number in the Netherlands, Germany and the UK. Those three numbers are an extra, not a limit: we help customers worldwide, by phone, email and chat, in several languages. What customers tell us most is that we keep them moving. Someone picks up a kit from a colleague, has never used it before and calls to ask how to set it up: that is usually sorted on the phone in a few minutes. If talking it through is not enough, we can take over the receiver remotely and look at it with you. For the harder cases we stay on it until you can get on with your work.
“Measuring tapes are a thing of the past. With the UNI-GR2 we are now able to equip every worker, foreman or technician in the field with an easy to use receiver to survey.”

The Netherlands
“By using the UNI-GR2 and combining it with our GIS tools, we have been able to work more efficient. On fibre optics projects, we are now able to skip about 50 process steps!”

The Netherlands
“The stake-out function saves us a lot of time, with quick loading of points and lines. It’s easy to use, which is a big plus. We use the UNI-GR2 for baseline measurements, construction work, and sewer projects, and we’re very satisfied with it.”

The Netherlands
marXact makes GNSS field equipment that lets you survey, set out and control machines to the centimetre yourself, without a surveying background. One company behind the whole chain: the UNI-GR2 receiver, the UNI-Collect app and the UNI-Cloud platform, all developed in-house in the Netherlands.
Contractors and teams in groundwork, civil engineering, utilities and infrastructure who want to measure and set out themselves instead of hiring a surveyor for every visit. If you can use a smartphone, you can use it.
Record points, lines and areas to the centimetre (cables and pipes, manholes, kerbs, trees and green), set out straight from a drawing, check heights, depths and slopes, work out lengths, areas and volumes, capture the site in 3D, and guide an excavator to the design surface. Hand the office or your client a finished file the same day.
No. Everything is built for people without a surveying background, and our own support team walks you through the first setup on the phone.
Complete packages start at € 5.645 the first year, with about € 1.750 a year for the subscriptions. The UNI-GR2 receiver on its own is € 3.295. See the packages for what fits your work, or book a demo and we think along.
You work in the coordinate reference system you choose, RD and NAP in the Netherlands, OSGB36 in the UK, Lambert in Belgium, the German national grid, or any other. It fits the standards clients ask for, including NLCS, NLCS++, CROW 500 and the DSP exchange, plus open protocols like NMEA-0183.
In a private cloud with two Dutch providers, TransIP and Cyso Cloud, with the datacentres in the Netherlands, both ISO 27001 and NEN 7510 certified. Your data stays within the EU and under the GDPR, and is never shared with third parties without your explicit written consent.
Developed in-house in Hilversum, the Netherlands, with the UNI-GR2 produced in Rotterdam. Our own support team in Hilversum answers the phone Monday to Friday, 09:00 to 17:00 CET, on local numbers in the Netherlands, Germany and the UK.
marXact equipment is used in more than 40 countries, with UNI-RTK Premium corrections covering more than 30 countries through over 2,000 base stations. You can also use your own free NTRIP service such as SAPOS or FLEPOS.
Yes. Book a demo and we show it on your own kind of work, and our team helps you get going. Get in touch through the site and we think along with your situation.
We bring a UNI-GR2 to your project and you measure yourself. Or download the brochure with the full price list first.
Or call us: +31 (0)70 700 7917