Century Geophysical
Century Geophysical, founded in 1946 and headquartered in Tulsa, Oklahoma, designs, manufactures, and sells rugged multi-parameter borehole logging probes, drawworks winches, surface units, and proprietary logging software to mining, oil and gas, geotechnical, environmental, and groundwater customers worldwide.
- Company typePrivate
- Founded1946
- HeadquartersTulsa, United States
- Headcount101–250
- GTM typeB2B
- OfferingHardware or Manufacturing
What Century Geophysical does
Century Geophysical, L.L.C. is a privately held specialty manufacturer of borehole geophysical logging equipment, founded in 1946 and headquartered at 1223 South 71st East Ave., Tulsa, Oklahoma. The company designs, fabricates, and sells rugged multi-parameter downhole probes, wireline drawworks winches, surface acquisition units, and proprietary logging acquisition and display software ("Visual Compu-Log") used for subsurface formation evaluation. Its probe portfolio includes spectral and natural gamma, density, neutron porosity, induction resistivity, magnetic susceptibility, induced polarization, caliper, deviation, flowmeter, fluid sampler, acoustic televiewer, and sonic tools, with a slim 2.5-inch diameter form factor (Express Stack 4000 Series) that accesses smaller exploration boreholes than many larger competitors' tools.
The company serves customers across five primary verticals: mining (coal, uranium, iron ore, rare earth elements, and metallic minerals), oil and gas, geotechnical engineering, environmental consulting, and groundwater/hydrology. Century's go-to-market is direct sales by telephone and a website contact form, with quote-based pricing in U.S. dollars, a 25% equipment deposit at order time (forfeitable after 60 days), balance due prior to shipment, and 30-day price validity. The company markets itself as the first to pioneer the transition from analog to digital instrumentation in the 1970s and emphasizes rugged, easy-to-use probes and winches that enable one-man field operations.
Revenue is generated almost entirely from hardware sales—probes, drawworks, surface units, accessories, and replacement parts—augmented by one-time Visual Compu-Log software licenses, optional paid training, and in-/out-of-warranty repair services performed at the Tulsa facility. The firm is an Oklahoma LLC with 101–250 employees, no disclosed parent company, institutional investor, or capital raise, and no social-media, API, AI/ML, or third-party integration footprint in the public record. Customer relationships are direct and largely transactional rather than subscription- or platform-based, and a Custom Tool Design service layer allows Century to quote customer-specific tool configurations beyond the standard catalog.
Century Geophysical firmographics
Firmographics- Name
- Century Geophysical
- Legal name
- Century Geophysical, L.L.C.
- Website
- https://century-geo.com
- Company type
- Private
- Founded year
- 1946
- Operating status
- Operating
- Headcount range
- 101–250 employees
- Short description
- Century Geophysical, founded in 1946 and headquartered in Tulsa, Oklahoma, designs, manufactures, and sells rugged multi-parameter borehole logging probes, drawworks winches, surface units, and proprietary logging software to mining, oil and gas, geotechnical, environmental, and groundwater customers worldwide.
- Ownership category
- akta.pro rank
Century Geophysical industry classification
Industry- Product category
- Borehole Geophysical Logging Equipment
- NAICS
- Geophysical Surveying and Mapping Services (54136), Mining and Oil and Gas Field Machinery Manufacturing (33313), Oil and Gas Field Machinery and Equipment Manufacturing (333132), Support Activities for Mining (213)
- SIC
- Oil & Gas Field Exploration Services (1382), Oil & Gas Field Machinery & Equipment (3533), Mining Machinery & Equip (No Oil & Gas Field Mach & Equip) (3532), Wholesale-Construction & Mining (No Petro) Machinery & Equip (5082)
- akta.pro primary industry
- Mineral Exploration & Geoscience Services (Geology, Geophysics, Geochemistry, Resource Modeling) (IMAKAKAA)
- akta.pro secondary industry
- Seismic & Geoscience Services (Acquisition, Processing, Interpretation) (EUALABAK)
Keywords
Where Century Geophysical is headquartered
LocationHeadquarters
- HQ city
- Tulsa
- HQ country
- United States
- HQ region
- North America
Offices1 record
Markets served
Century Geophysical business model
Business model- GTM type
- B2B
- Offering type
- Hardware or Manufacturing
- Cost components
- Personnel, Supply Chain, Operations, Technology or R&D, Marketing or Sales, Infrastructure
Revenue model
- Borehole Logging Equipment - Probes: Sale of multi-parameter probes, spectral gamma tools, density tools, neutron tools, induction tools, caliper tools, flowmeters, and specialized mining tools
- Drawworks Winches: Sale of drawworks winches (300M portable, 700M with regenerative feedback, 2000M for deeper applications) with S-shaped measuring systems
- Surface Units: Sale of surface logging units (System VI, System VII) for data collection and control of downhole probes
- Software Licenses: Sale of Visual Compu-Log logging acquisition and display/processing software licenses
- Accessories and Parts: Sale of cableheads, centralizers, calibration boxes, thermal printers, deviation test stands, and replacement parts
- Professional Services - Training: Optional training provided to customer representatives at defined costs prior to trainer dispatch
- Repair and Support Services: In-warranty and out-of-warranty tool repairs, remote web-based support, telephone support, and return authorization for repairs at Tulsa facility
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Other | Multi-year contract | Equipment Orders - 25% Deposit Required |
| Unit Pricing | Pay-as-you-go | Parts Orders - Full Payment |
| Other | Pay-as-you-go | Professional Services - Training |
| Other | Pay-as-you-go | Out-of-Warranty Repairs |
Go-to-market motion2 records
Distribution channels3 records
Marketing channels3 records
Century Geophysical product offering
Product offeringCore offering
Century Geophysical designs, manufactures, and sells borehole geophysical logging systems consisting of multi-parameter probes, Express Stack combined probes, drawworks winches, surface acquisition units, and Visual Compu-Log software. Products are used for formation evaluation in mining (coal, uranium, iron ore, rare earths), oil and gas, geotechnical, environmental, and groundwater applications. The company also provides repair, training, and custom tool design services from its Tulsa, Oklahoma facility.
Product overview
Century Geophysical, founded in 1946 and headquartered in Tulsa, Oklahoma, provides a comprehensive borehole geophysical logging system consisting of multi-parameter probes, express stack probes, drawworks winches, surface units, and Visual Compu-Log software. The product portfolio includes over 25 distinct logging tool models (spectral gamma, natural gamma, neutron porosity, density, induction, magnetic susceptibility, induced polarization, flowmeter, fluid sampler, deviation, sonic, acoustic televiewer, and micro-imaging tools) plus three drawworks models (300M, 700M, 2000M) and two surface unit systems (System VI, System VII). Applications span mining, oil and gas, geotechnical, environmental, and groundwater industries. The company pioneered the transition from analog to digital instrumentation in the 1970s and serves customers worldwide.
Differentiator
Problem solved
Functional benefit
Products and services
- Multi-Parameter Probes Comprehensive suite of borehole logging probes including spectral gamma, natural gamma, neutron porosity, density, induction, magnetic susceptibility, induced polarization, flowmeter, fluid sampler, deviation, and acoustic televiewer tools for mining, oil and gas, environmental, and groundwater applications.
- Express Stack Probes (4000 Series) Combined logging tool stack for oil and gas applications integrating gamma ray, caliper, density-neutron porosity, spontaneous potential, induction resistivity, sonic velocity, and deviation measurements in a single borehole run. The 4000 Series Express Stack Tools are 2.5 inch diameter, 45 feet in length, weighing 250 pounds.
- Drawworks Winches Wireline drawworks systems for deploying and retrieving logging tools, including 300M portable/mountable, 700M with regenerative feedback speed controller, and 2000M for 1000-2000m cable capacity applications. Equipped with S-shaped measuring system for accurate depth readings.
- Surface Units (System VI and System VII) Surface data acquisition and control units for logging operations. System VI measures 6"H x 10"W x 10"D, consumes 150 Watts, supports Windows 98/2000/XP/Vista/7/8/10, provides DC tool power up to 180 Volts, and uses four conductor wireline connection.
- Visual Compu-Log Software Logging acquisition and display/processing software for mining, oil/gas, coal bed methane, hydrology, and environmental industries. The Log program acquires data while the Display program simultaneously views and prints logs.
- Accessories and Spare Parts Supporting equipment including complete cablehead assemblies, cableheading tool kits, deviation test stands, centralizers, resistivity calibration boxes, and thermal printers for field and final log plots.
- 7201 Spectral Gamma Logging Tool Three-channel spectral gamma analysis tool measuring potassium (K), uranium (U), and thorium (T) content using a 256-channel spectrum board. Features 60.96mm diameter, 167cm length, 232 kg/cm2 pressure rating, and fully downhole digital operation.
- 9012 Natural Gamma Logging Tool Slim natural gamma logging tool (41mm diameter) for small diameter boreholes and through steel or PVC drill pipe of 2 inch ID or larger. Features NAI scintillation detector, 128.9cm length, 281 kg/cm2 pressure rating.
- 9057 Multi-parameter E-Log Neutron Logging Tool Multi-parameter tool recording ten parameters: natural gamma, spontaneous potential, single point resistance, 16in/64in normal resistivity, 48in lateral resistivity, neutron-neutron, temperature, delta temperature, slant angle and azimuth. Replaced the 9055 model.
- 9238 Coal Density / Logging Tool Classic coal logging tool combining density (200-300 mCi Cesium 137 source), natural gamma, caliper, and medium guard resistivity measurements. Single detector focused density system, 51mm diameter, 299.7cm length.
- 9239 Compensated Density Logging Tool Industry standard compensated density tool with dual focused density detectors computing CDL bulk density real-time without post-processing. Also records natural gamma, caliper, and focused guard resistivity. 56mm diameter, 280.3cm length.
- 9512 Slim Hole Induction Tool Three-coil slim hole induction tool for open boreholes or PVC/plastic cased holes (2 inch or greater). Measures rock conductivity in zone of 25.4 to 127cm from well without sensitivity to borehole fluid or casing. Also records natural gamma ray. 266.7cm length.
- 9622 Series Magnetic Susceptibility Tool Slim hole mining tool measuring magnetic susceptibility of formations using dual-focused coils at 1.44kHz operating frequency. Optional natural gamma, inclinometer and magnetometer sensors. 41mm diameter, 241cm length, 253 kg/cm2 pressure rating.
- 9650 Series Induced Polarization Logging Tool Multi-parameter tool for hard rock mining and uranium exploration using 16 and 64 array electrode spacing with alternating current. Records natural gamma, spontaneous potential, single point resistance, and induced polarization. Detects sulfide bearing rocks like pyrites. 244cm length, 15kg weight.
- 9722 E-M Flowmeter Electromagnetic flowmeter for environmental and hydrology measuring fluid movement using Faraday's Law of Induction. No moving parts, measures 50 ml/min to 40 liters/min through 1 inch ID sensor. Includes fluid resistivity, temperature and delta temperature. 41.3mm diameter, 153.7cm length.
- 9804 Series Acoustic Televiewer Tool Borehole imaging tool using high-resolution sound waves to capture oriented pictures of borehole walls. Records 256 measurements around borehole at 0.005m sample intervals, oriented to North in real-time. Detects bedding planes, fractures, and hole anomalies. 50.8mm diameter, 225cm length, 105 kg/cm2 pressure rating.
- 9144 Series E-Logging Tool Multi-parameter resistivity tool primarily for water well logging and monitoring wells. Records ten parameters: natural gamma, spontaneous potential, single point resistance, 16in/64in normal resistivity, 48in lateral resistivity, fluid resistivity, temperature, delta temperature, slant angle and azimuth. 53mm diameter, 234.3cm length.
- Custom Tool Design and Fabrication Service Custom tool design and fabrication services including combined density-deviation tools, X-Y caliper-deviation tools for well profiling, configurable sonic velocity tools (2-4 receivers), slim hole density with photo electric measurement, and ultra slim-line dual density/neutron tools for cased hole evaluation through steel drill pipe.
- Repair and Training Services In-warranty and out-of-warranty tool repairs at Tulsa facility, remote web-based support, telephone support, and optional training provided to customer representatives at defined costs prior to trainer dispatch.
Quantifiable outcome
- Triple combo stack reduces logging runs from multiple to single pass, saving rig time and reducing operational costs
- +2 more outcomes
Companies that use Century Geophysical
Customer profileNamed customers8 records
Segments5 records
Ideal customer profiles4 records
Century Geophysical technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature7 records
Century Geophysical partnerships and signals
Strategic signalScale indicators4 records
Recent moves6 records
Expansion highlights6 records
Century Geophysical competitors and assessment
Company assessmentBroad incumbents
- SLB (Schlumberger): World's largest oilfield services company with extensive wireline logging, LWD, and digital well delivery platforms across the upstream value chain. Overlaps with Century on oil and gas borehole logging, but operates at vastly greater scale with bundled services.
- Halliburton: Global oilfield services major with significant logging-while-drilling, wireline, and formation evaluation capabilities. Competes with Century in oil and gas formation evaluation, particularly on larger enterprise tenders.
- Baker Hughes: Major oilfield and industrial energy technology company offering wireline logging, drilling services, and digital well solutions. Broader portfolio than Century but overlaps on borehole formation evaluation.
- Weatherford International: Global oilfield services provider offering wireline, open-hole, and cased-hole logging services and tools. Direct overlap with Century's oil and gas wireline logging product line as part of a broader services portfolio.
Direct peers
- IRIS Instruments: French manufacturer of borehole and surface geophysical instruments including resistivity/IP, magnetic susceptibility, gamma, and induction tools. Comparable specialty niche manufacturer serving mining and hydrogeology markets.
- Reflex Instruments: Australian developer of borehole geophysical logging tools (oriented acoustic televiewer, spectral gamma, magnetic susceptibility, IP) and data acquisition software for mineral exploration. Direct competitor in mining-focused borehole logging.
- Robertson Geo (Geotech): UK-based designer and manufacturer of borehole geophysical logging probes, winches, and acquisition systems serving mineral exploration, water well, geotechnical, and environmental customers. Closely comparable product portfolio and application focus to Century.
- Advanced Logic Technology (ALT): Luxembourg-based manufacturer of borehole logging tools (WellCad software, FullWave sonic, density, gamma, caliper) for mining, environmental, and oil and gas logging. Direct competitor in slim-hole probe and acquisition software.
- DMT GmbH & Co. KG: German engineering and consulting group providing borehole logging services and equipment for mining, exploration, and geotechnical applications. Comparable specialty services and tooling offering with similar vertical focus.
- Mount Sopris Instrument Co: Colorado-based manufacturer of slim-hole borehole geophysical logging instruments (gamma, resistivity, density, spectral, IP, sonic) for mining, geotechnical, and groundwater applications. Direct competitor across most of Century's product categories and customer base.
Market position
Strengths1 record
Weaknesses5 records
Competitive moat4 records
Key risks4 records
Key highlights7 records
Customer concentration
Century Geophysical financial estimates
Financial estimateRevenue estimate
Valuation estimate
Century Geophysical leadership team
Management profileNumber of profiles
Century Geophysical funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Century Geophysical 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 Century Geophysical
What does Century Geophysical do?
Century Geophysical designs, manufactures, and sells borehole geophysical logging systems consisting of multi-parameter probes, Express Stack combined probes, drawworks winches, surface acquisition units, and Visual Compu-Log software. Products are used for formation evaluation in mining (coal, uranium, iron ore, rare earths), oil and gas, geotechnical, environmental, and groundwater applications. The company also provides repair, training, and custom tool design services from its Tulsa, Oklahoma facility.
Is Century Geophysical a public or private company?
Century Geophysical is a private company. It is classified as unknown and is currently operating.
When was Century Geophysical founded?
Century Geophysical was founded in 1946. It employs 101 to 250 people.
Where is Century Geophysical based?
Century Geophysical is headquartered in Tulsa, United States, in the North America region.
How does Century Geophysical make money?
Seven revenue lines are on record. Borehole Logging Equipment - Probes are the primary driver. The others are drawworks Winches, surface Units, software Licenses, accessories and Parts, professional Services - Training and repair and Support Services.
Who are Century Geophysical's main competitors?
Broad incumbents on record are SLB (Schlumberger), Halliburton, Baker Hughes and Weatherford International. Direct peers are IRIS Instruments, Reflex Instruments, Robertson Geo (Geotech), Advanced Logic Technology (ALT), DMT GmbH & Co. KG and Mount Sopris Instrument Co.
Does Century Geophysical have an API?
No public API is recorded for Century Geophysical.
What industry is Century Geophysical in?
Century Geophysical's product category is Borehole Geophysical Logging Equipment. Its primary akta.pro industry code is IMAKAKAA, Mineral Exploration & Geoscience Services (Geology, Geophysics, Geochemistry, Resource Modeling), with a secondary code of EUALABAK, Seismic & Geoscience Services (Acquisition, Processing, Interpretation). Its NAICS code is 54136 and its SIC code is 1382.