calcis
Calcis is a founder-led Belgium/Luxembourg engineering geophysics and geological engineering consultancy delivering multi-technique ground investigation to infrastructure, quarry/mining, and environment clients across Europe.
- Company typePrivate
- Founded-
- HeadquartersLiège, Belgium
- Headcount1–10
- GTM typeB2B
- OfferingServices
What calcis does
Calcis is a privately-held engineering geophysics contractor and engineering geological consultancy operating from Liège, Belgium (Calcis srl, VAT BE 0501.955.204) and Strassen, Luxembourg (Calcis Luxembourg sarl, VAT LU 31583563, designated headquarters). The firm was founded by Tim NZALI, who holds qualifications in Geophysics, Hydrogeology and Engineering Geology and brings 25 years of project experience across Europe, the Middle East, Africa and the Americas spanning magmatic and metamorphic terrain, groundwater flow and contaminant transport modelling, port and coastal development (UXO detection, dredgeability, seabed investigations), and on-land site investigation.
The company's offering is organised around three integrated service lines: Geophysics, Geotechnical Consultants, and Geological Engineering. The Geophysics practice deploys a multi-technique stack — seismic (refraction, reflection, ReMi surface-wave), electrical resistivity tomography (ETR), microgravity, ground-penetrating radar (GPR), magnetometry, electromagnetic surveys, and borehole geophysics (downhole, crosshole, uphole tomography) — on the stated principle that no single technique is universally effective. The Geotechnical Consultants line provides on-site engineering supervision (borehole supervision, sampling, laboratory coordination, and field tests including CPT, pressiometer, dilatometer, SPT, vane). The Geological Engineering line integrates desk study, geophysical and geotechnical data into engineering geological models for risk assessment and operations planning. Together these services address ground-risk reduction across three primary verticals: Infrastructures & Civil Engineering (tunnels, high-speed rail, highways, airports, dams, bridges), Quarry & Mining (overburden, weathering, karstification, excavability, borehole targeting), and Environment (waste disposal site characterisation, contamination, groundwater, archaeology, UXO), with Nearshore Infrastructure listed as an additional sector.
Calcis monetises through professional services on a quote-based, project-specific pricing model, sold primarily via direct, consultative engagement with contractors, engineering firms, quarry operators, environmental consultancies and government entities. The company markets almost exclusively through its bilingual French/English website (calcis.eu), has no disclosed app, API, or technology integrations, and shows no external funding, partnerships, awards, patents, or named customers in the available data. It remains a founder-owned, sub-ten-person specialist consultancy.
calcis firmographics
Firmographics- Name
- calcis
- Legal name
- Calcis
- Website
- https://calcis.eu
- Company type
- Private
- Operating status
- Operating
- Headcount range
- 1–10 employees
- Short description
- Calcis is a founder-led Belgium/Luxembourg engineering geophysics and geological engineering consultancy delivering multi-technique ground investigation to infrastructure, quarry/mining, and environment clients across Europe.
- Ownership category
- akta.pro rank
calcis industry classification
Industry- Product category
- Geotechnical and Geophysical Consulting Services
- NAICS
- Geophysical Surveying and Mapping Services (54136), Testing Laboratories and Services (54138), Architectural, Engineering, and Related Services (5413)
- SIC
- Services-Commercial Physical & Biological Research (8731)
- akta.pro primary industry
- Geotechnical Design, Engineering & Consulting (Analysis, Design, Peer Review) (IMAFAOAK)
- akta.pro secondary industries
- Geotechnical Investigation & Site Characterization (Boreholes, In-situ Testing, Lab Testing) (IMAFAOAG), Geotechnical & Subsurface Engineering Consulting (BPAHAIAB), Mineral Exploration & Geoscience Services (Geology, Geophysics, Geochemistry, Resource Modeling) (IMAKAKAA)
Keywords
Where calcis is headquartered
LocationHeadquarters
- HQ city
- Liège
- HQ country
- Belgium
- HQ region
- Europe
Offices2 records
Markets served
calcis business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Personnel, Operations, Technology or R&D, Infrastructure, Marketing or Sales
Revenue model
- Engineering Geophysics Services: Consulting services for ground investigation using geophysical methods. Projects are tailored to client objectives in infrastructure, mining, and environmental sectors.
Go-to-market motion1 record
Distribution channels1 record
Marketing channels1 record
calcis product offering
Product offeringCore offering
Calcis provides engineering geophysics and geological engineering consultancy services for ground investigation projects. The company applies and combines multiple geophysical survey techniques (seismic, electrical, microgravity, GPR, magnetometry, electromagnetic, and borehole geophysics), on-site geotechnical supervision, and engineering geological modeling to characterize subsurface conditions for infrastructure, mining, quarrying, and environmental clients.
Product overview
Calcis is an engineering geophysics contractor and engineering geological consultancy company. The company offers three core service offerings: Geophysics (a wide range of onshore geophysical survey techniques for ground investigations including seismic, electrical, microgravity, radar/GPR, magnetometry, electromagnetic, and borehole geophysics), Geotechnical Consultants (on-site engineering supervision for borehole supervision, sampling, laboratory tests, and field geotechnical tests), and Geological Engineering (desk study and data integration services to construct engineering geological models). These services are applied across customer sectors including Infrastructures & Civil Engineering, Quarry & Mining, and Environment.
Differentiator
Problem solved
Functional benefit
Companies that use calcis
Customer profileSegments3 records
Ideal customer profiles3 records
calcis technology and API
TechnologyAPI detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature7 records
calcis partnerships and signals
Strategic signalScale indicators2 records
Recent moves1 record
Expansion highlights4 records
calcis competitors and assessment
Company assessmentDirect peers
- Multiwave Geophysical: European geophysical services company providing seismic, GPR and electromagnetic surveys for civil engineering, mining and environmental clients. Directly comparable niche operator to Calcis with similar multi-method positioning.
- Terratec: Specialist geophysical services firm active across Central Europe offering seismic, GPR, ERT and other near-surface methods. Closely comparable to Calcis as a focused engineering geophysics contractor serving infrastructure and mining clients.
- Geomatrix Earth Science: UK-based specialist in engineering geophysics and geological services for civil engineering, mining and environmental projects. Closely comparable to Calcis in scale, multi-method approach and customer segment focus.
Broad incumbents
- Fugro: Global geoscience and geotechnical services firm offering site characterization, geophysics and ground engineering across infrastructure, mining and energy. Compares to Calcis as a much larger provider of the same multi-method ground investigation services.
- WSP (with Golder): Global engineering consultancy with a strong ground engineering and geophysics practice (via Golder). Comparable to Calcis across infrastructure, mining and environment segments, but operating at vastly greater scale.
- COWI: Danish-headquartered engineering consultancy with significant geotechnical, tunnel and infrastructure ground investigation capabilities across Europe. Overlaps with Calcis on large infrastructure and tunnel projects where ground risk is critical.
- Arcadis: Global design and engineering consultancy with a dedicated ground engineering and environmental practice. Competes with Calcis for infrastructure, mining and environmental site characterization work, especially in Europe.
- Sixense (Vinci Construction): Engineering group within Vinci specializing in geophysics, geotechnical and structural instrumentation/monitoring. Overlaps with Calcis on engineering geophysics and site characterization for major civil engineering projects.
- Stantec: Global engineering consultancy with a sizable geotechnical, environmental and infrastructure practice. Competes with Calcis on integrated ground investigation mandates, particularly for public-sector infrastructure clients in Europe.
Regional players
- T&A Survey: Iberian geophysical and surveying services firm offering near-surface geophysics for infrastructure, mining and environment. Comparable to Calcis in service mix, though operating primarily in a different European geography.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat3 records
Key risks7 records
Key highlights6 records
Customer concentration
calcis social profiles
Digital presencecalcis financial estimates
Financial estimateRevenue estimate
Valuation estimate
calcis leadership team
Management profileNumber of profiles
Profiles1 record
calcis funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
calcis M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about calcis
What does calcis do?
Calcis provides engineering geophysics and geological engineering consultancy services for ground investigation projects. The company applies and combines multiple geophysical survey techniques (seismic, electrical, microgravity, GPR, magnetometry, electromagnetic, and borehole geophysics), on-site geotechnical supervision, and engineering geological modeling to characterize subsurface conditions for infrastructure, mining, quarrying, and environmental clients.
Is calcis a public or private company?
calcis is a private company. It is classified as founder individual operated bootstrapped and is currently operating.
When was calcis founded?
calcis was founded in -1. It employs 1 to 10 people.
Where is calcis based?
calcis is headquartered in Liège, Belgium, in the Europe region.
How does calcis make money?
One revenue line is on record: engineering Geophysics Services.
Who are calcis's main competitors?
Direct peers on record are Multiwave Geophysical, Terratec and Geomatrix Earth Science. Broad incumbents are Fugro, WSP (with Golder), COWI, Arcadis, Sixense (Vinci Construction) and Stantec. T&A Survey is listed as a regional player.
Does calcis have an API?
No public API is recorded for calcis.
What industry is calcis in?
calcis's product category is Geotechnical and Geophysical Consulting Services. Its primary akta.pro industry code is IMAFAOAK, Geotechnical Design, Engineering & Consulting (Analysis, Design, Peer Review), with a secondary code of IMAFAOAG, Geotechnical Investigation & Site Characterization (Boreholes, In-situ Testing, Lab Testing). Its NAICS code is 54136 and its SIC code is 8731.