8 Resistivity Survey Providers to Consider for 2026 Quotes

Introduction

A useful resistivity imaging quotation connects equipment or survey services to a defined investigation. Buyers need to specify the target, survey geometry, required measurements, field conditions, and interpretation deliverables.

This guide presents eight candidates for further evaluation. The numbering is editorial presentation order, with Geomative featured first; it is not an independent performance ranking.

The list includes equipment suppliers, a candidate requiring further manufacturer verification, and a survey-services provider. Equipment purchases and commissioned investigations should be compared separately.

1. Geomative

Core Technology and Products

Geomative supplies resistivity and induced polarization instruments alongside subsurface data software. Its GD range includes different acquisition capacities rather than a single shared specification.

The current GD-12/22/32 technical table lists:

The GD-10 is a single-channel instrument. GD-20 specifications vary by configuration, with 9 kW listed as an optional rating.

Published specifications must be considered alongside the limits of the supplied power source, cables, switching equipment, and measurement mode. Power-line rejection should also be distinguished from performance against other interference sources.

Field data inspection and roll-along acquisition serve different purposes: one supports quality checks, while the other extends coverage. Necessary repeat measurements remain part of survey verification.

DIGspace provides an ERT processing workflow that includes data review and online inversion. Buyers should confirm the required modules, supported formats, connectivity, and access to raw data. Complementary TEM equipment should be evaluated separately by model and survey objective.

Industry Applications and Cases

Geomative’s Brazil gold exploration case identifies a GD-10 instrument used for resistivity and IP investigation. The Beishan lead-zinc mine case concerns GT-30 transient electromagnetic work.

These references should remain attributed to their actual equipment and field conditions. They do not establish equivalent performance across the product range.

For a quotation, request an itemized configuration and relevant field examples. Geophysical interpretations may guide drilling, sampling, or inspection, but do not independently confirm mineral resources, contamination, or leakage.

2. Advanced Geosciences, Inc. — AGI

AGI’s SuperSting range provides resistivity and IP configurations, including an eight-channel R8 model. The manufacturer describes applications such as mineral exploration, groundwater investigation, borehole tomography, and marine measurements.

Specify the required measurement modes, electrode arrangement, and transmitter configuration when requesting a quote. Software functions and licenses should be itemized rather than assumed to accompany every hardware package.

A demonstration should include representative data acquisition and transfer into the proposed interpretation workflow.

3. IRIS Instruments

IRIS supplies SYSCAL resistivity and IP instruments and ELREC IP receivers. These product categories require different configurations and should not be treated as interchangeable systems.

For a SYSCAL quotation, confirm the model, switching capacity, transmitter arrangement, and optional functions. For a separate IP receiver, identify the compatible transmitter, synchronization requirements, and supporting equipment.

Request a complete survey configuration rather than comparing only the price of the main instrument.

4. Zonge International

Zonge’s current IP information identifies GDP-3224 and ZEN receivers alongside dedicated transmitters and generators. It also describes survey outputs including observed resistivity/IP data and inversion results.

Buyers should distinguish equipment acquisition from contracted fieldwork and processing. An equipment proposal needs a defined receiver, transmitter, power source, and acquisition workflow.

A services proposal should instead specify coverage, quality-control procedures, data ownership, interpretation deliverables, and any verification work included.

5. ABEM — Guideline Geo

Guideline Geo’s ABEM Terrameter LS 2 is available in multiple configurations. Published specifications include models with up to 12 measurement channels, with IP and waveform capabilities varying by configuration.

An inquiry should identify the required electrode arrangement and measurement schedule. Confirm which hardware options, software functions, and training are included.

Practical acquisition time should be assessed using the intended survey sequence rather than inferred from maximum channel count.

6. GF Instruments — Candidate Requiring Current Documentation

GF Instruments is retained from the proposed shortlist as a candidate for further verification. Current manufacturer documentation was not accessible during this review, so no numerical performance limits or depth recommendations are assigned here.

Before including an ARES configuration in a scored comparison, obtain the manufacturer’s current datasheet and quotation. Confirm the exact model, receiving capacity, electrode switching, IP settings, software compatibility, and support arrangements.

Supplier evaluation should proceed from that documented configuration.

7. OYO Corporation

OYO’s McOHM EL3i documentation describes resistivity surveying and borehole logging functions. It provides a specific product reference for inquiries involving those measurements.

Buyers seeking automated multielectrode imaging or IP acquisition should confirm those requirements separately. A resistivity or logging instrument should not automatically be treated as equivalent to a multichannel ERT/IP platform.

Request the complete configuration, including any switching equipment, probes, power options, and processing tools required for the intended investigation.

8. DMT Group — Survey and Interpretation Services

DMT’s published exploration services include electrical resistivity tomography and induced polarization. It is therefore relevant to buyers considering a commissioned investigation rather than solely an instrument purchase.

A DMT inquiry should define the investigation objective, survey area, access conditions, required methods, and deliverables. Confirm whether acquisition, processing, interpretation, and follow-up support are included.

The available service description does not by itself establish a standalone resistivity imaging instrument for sale. Any equipment-supply requirement should be confirmed directly.

Conclusion

A resistivity imaging quote is most useful when it specifies a complete configuration or a clearly defined survey service.

For equipment purchases, compare measurement capabilities, accessories, software, training, maintenance, and data access against the same project brief. For contracted surveys, compare coverage, quality control, deliverables, responsibilities, and verification requirements.

Geomative’s GD range offers model-specific options to evaluate alongside other documented systems. Select the configuration or service that meets the investigation requirements, supported by representative measurements and a clear processing workflow.

https://www.geomative.com/
Geomative Co., Ltd.