Nereides
NEREIDES designs, manufactures, and distributes custom industrial instrumentation for naval defense (submarine antenna systems), environmental monitoring (air and water quality), and oceanographic/meteorological research, serving enterprise and government clients globally via direct sales and an 11-country distributor network.
- Company typePrivate
- Founded1970
- HeadquartersVillejust, France
- Headcount11–50
- GTM typeB2B
- OfferingHardware or Manufacturing
What Nereides does
NEREIDES SAS is a French privately held industrial instrumentation specialist founded in 1970 and headquartered in Villejust, France, with a production facility in Belloy-en-France opened in January 2021. The company designs, manufactures, integrates, and maintains high-value-added measurement systems across five application areas: naval defense (where it is one of only two manufacturers worldwide of complete submarine wire antenna systems enabling VLF, LF, HF, LORAN C, and GPS underwater communications), industrial air quality and emissions monitoring (DOAS gas analyzers, gas chromatographs, ambient air analyzers), water quality (OILSPY hydrocarbon detectors, OILSTOP closing valves, and custom analysis stations), oceanography and marine meteorology (instrumented buoys, Seaguard platforms, meteorological sensors), and marine mechanics (powered and manual winches, counting pulleys, sampling buckets and bottles).
The company's technology base combines proprietary in-house products (OILSPY polymer-membrane hydrocarbon detection, OILSTOP fusible-membrane valves, submarine antenna systems) with exclusive French distribution of complementary international brands (OPSIS DOAS systems, SYNSPEC gas chromatographs, ECOTECH ambient air analyzers, LSE NH3/N2O analyzers, OLICEM DAHS software). R&D is supported by collaborative partnerships with CEA, CNRS, DGA, and IFP. Products carry ISO 9001, ATEX, MCERTS, and EN 14181/EN 17255 certifications.
NEREIDES generates revenue through direct enterprise sales in France and through an 11-country international distributor network across Europe, Asia-Pacific, and North Africa, with multi-year custom-quoted contracts for hardware, turnkey integration, and recurring maintenance and calibration services. The customer base spans major industrial operators including TotalEnergies, BP, ExxonMobil, Veolia, Suez, ArcelorMittal, Framatome, Orano, Lafarge/Holcim, and CFF.
Nereides firmographics
Firmographics- Name
- Nereides
- Legal name
- NEREIDES SAS
- Website
- https://nereides.fr
- Company type
- Private
- Founded year
- 1970
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Short description
- NEREIDES designs, manufactures, and distributes custom industrial instrumentation for naval defense (submarine antenna systems), environmental monitoring (air and water quality), and oceanographic/meteorological research, serving enterprise and government clients globally via direct sales and an 11-country distributor network.
- Ownership category
- akta.pro rank
Nereides industry classification
Industry- Product category
- Industrial Environmental Instrumentation
- NAICS
- Navigational, Measuring, Electromedical, and Control Instruments Manufacturing (3345), Oil and Gas Field Machinery and Equipment Manufacturing (333132), Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing (334511)
- SIC
- Industrial Instruments For Measurement, Display, And Control (3823), Oil & Gas Field Machinery & Equipment (3533)
- akta.pro primary industry
- Leak Detection, Emissions & LDAR Testing (OGI, methane, fugitive emissions) (EUAEAHAL)
- akta.pro secondary industries
- Online Monitoring, Sensors & Instrumentation (SCADA-integrated analyzers, probes, samplers) (EUANAJAC), Marine Automation, Control & PLC/SCADA Systems (IMAJAJAC), Marine Surveys, Testing & NDT (Thickness Gauging, UT/MPI, Pressure Testing, Commissioning) (TLAHAMAK)
Keywords
Where Nereides is headquartered
LocationHeadquarters
- HQ city
- Villejust
- HQ country
- France
- HQ region
- Europe
Offices2 records
Markets served
Nereides business model
Business model- GTM type
- B2B
- Offering type
- Hardware or Manufacturing
- Cost components
- Personnel, Operations, Technology or R&D, Supply Chain, Marketing or Sales, Infrastructure
Revenue model
- Environmental Instrumentation Products: Sale of manufactured and distributed environmental monitoring equipment including hydrocarbon detectors, gas analyzers, water quality stations, meteorological instruments, and marine mechanical equipment. Products are sold directly and through international distributors.
- Integration and Turnkey Systems: Design, integration, and supply of complete turnkey measurement systems tailored to customer specifications. Services include needs analysis, environmental assessment, system design, installation, and commissioning.
- Maintenance and After-Sales Services: On-site maintenance, technical support, and after-sales services for installed instrumentation. Includes calibration, repair, and ongoing technical follow-up.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Other | Multi-year contract | Custom quotation-based pricing |
Go-to-market motion2 records
Distribution channels2 records
Marketing channels6 records
Nereides product offering
Product offeringCore offering
NEREIDES studies, produces, integrates, operates, maintains and distributes high value-added instrumentation and solutions for environmental knowledge and measurement. The company manufactures its own products including OILSPY hydrocarbon detectors, OILSTOP closing valves, and complete wire antenna systems for submarines, while also serving as exclusive French distributor for partner brands OPSIS, SYNSPEC, LSE Monitors, ECOTECH, and OLICEM. The portfolio spans naval instrumentation, air and water quality analysis, oceanography, meteorology, and marine mechanics for industrial, defense, and research customers.
Product overview
NEREIDES is a custom industrial instrumentation designer offering a portfolio of environmental monitoring products organized into five categories: Water Quality (OILSPY hydrocarbon detectors, OILSTOP closing valves, and custom Quality Analysis Stations), Air and Gas Analysis (OPSIS DOAS gas analyzers, OLICEM environmental data monitoring software, SYNSPEC gas chromatographs, LSE NH3/N2O analyzers, and ECOTECH ambient air analyzers), Oceanography and Marine Meteorology (meteorological measurement systems, AADI oceanographic research platforms and instrumented buoys, Seaguard measurement platforms, and instrumented buoys), Marine Mechanics (powered winches, manual winches, counting pulleys, Shipeck sampling buckets, and water sampling bottles), and Defense (wire antenna systems for submarines). The company serves industrial, research, and defense sectors with engineering, integration, and maintenance services. NEREIDES distributes partner products from OPSIS, OLICEM, SYNSPEC, LSE Monitors, and ECOTECH, while manufacturing its own branded products including OILSPY, OILSTOP, wire antenna systems, and marine mechanical equipment.
Differentiator
Problem solved
Functional benefit
Brands
- OILSPY: Hydrocarbon floating detector and chlorinated solvents detector that triggers an alarm in case of accidental pollution
- OILSTOP
- Quality Analysis Stations
Products and services
- OILSPY Hydrocarbon Detector Floating hydrocarbon and chlorinated solvent detection system that triggers an alarm in case of accidental pollution. Features selective membrane technology to avoid false alerts, ATEX certification, and intrinsic safety version availability. Designed for water quality monitoring in retention basins and industrial sites.
- OILSTOP Closing Valve Automatic drain closure valve for floating roof storage tanks. Fuse-type polymer membranes react on contact with hydrocarbons to close the valve and contain pollution. Available in DN80 and DN100 sizes for Oil and Gas sector applications.
- Quality Analysis Stations
Quantifiable outcome
- OILSPY detects pollution from 0.1mm thickness of hydrocarbons
- +2 more outcomes
Companies that use Nereides
Customer profileNamed customers21 records
Segments4 records
Ideal customer profiles4 records
Nereides technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature4 records
Nereides partnerships and signals
Strategic signalPartnerships
21 partnerships are on record, tiered core, minor and regional.
- OPSIS (Sweden)coreOPSIS is a Swedish company specializing in DOAS (Differential Optical Absorption Spectroscopy) gas analyzers for ambient air, industrial emissions, and process monitoring. NEREIDES distributes OPSIS products in France and participates in annual OPSIS international sales meetings.
- SYNSPEC (Netherlands)coreSYNSPEC is a Dutch company developing and producing gas chromatographs and laser-acoustic analyzers for VOC and hydrocarbon monitoring. NEREIDES is the exclusive distributor of SYNSPEC products in France. All operations and installations are based in Groningen, Netherlands.
- LSE Monitors (Netherlands)coreLSE Monitors is a Dutch joint venture between SYNSPEC and Senso-Sense, combining photoacoustic analysis expertise with low-concentration gas analyzer production. NEREIDES distributes LSE Monitor products for NH3 and N2O measurement.
- ECOTECH (Australia)coreECOTECH is an Australian company offering continuous gas emission monitoring systems, air samplers, dilution systems, zero air generators, and data acquisition software. NEREIDES distributes ECOTECH products in France.
- OLICEM (Denmark)coreOLICEM is a Danish company specializing in environmental emission reporting software (DAHS) for waste incineration sites, compliant with EN 14181 and EN 17255 standards. NEREIDES distributes OLICEM's ReportLoq software in France.
- CEA (France)coreFrench Alternative Energies and Atomic Energy Commission. NEREIDES collaborates with CEA to develop original and innovative solutions for environmental measurement and naval instrumentation.
- CNRS (France)coreFrench National Centre for Scientific Research. NEREIDES partners with CNRS to develop innovative solutions. Equipment is designed and then industrialized and commercialized by NEREIDES under license from CNRS.
- DGA (France)coreFrench Defence Procurement Agency. NEREIDES maintains collaborative relationships with DGA for the development of naval defense instrumentation solutions.
- IFP (France)coreIFP Energies nouvelles. NEREIDES partners with IFP for joint development of solutions that are subsequently industrialized and commercialized by NEREIDES under license.
- TOTEX (Japan)minorTOTEX is a Japanese manufacturer of meteorological balloons and sounding balloons used worldwide in meteorological observation institutions. NEREIDES distributes TOTEX products for meteorological measurement applications.
- Inatech (Belgium)regionalDistributor for NEREIDES products in Belgium. Handles local sales, support, and customer relationships for Belgian market.
- Labkotec (Finland)regionalDistributor for NEREIDES products in Finland. Handles local sales and support for Finnish market.
- MeasurIT Technologies (Ireland)regionalDistributor for NEREIDES products in Ireland. Handles local sales and customer support.
- CFF Fluid Control Limited (India)regionalDistributor for NEREIDES products in India. Handles local sales and support for the Indian market.
- Vision Engineers (Netherlands)regionalDistributor for NEREIDES products in the Netherlands. Handles local sales and customer support.
- HOUM (Norway)regionalDistributor for NEREIDES products in Norway. Handles local sales and customer relationships.
- DIMA (Spain)regionalDistributor for NEREIDES products in Spain. Handles local sales and support.
- DMG Control Systems (UK)regionalDistributor for NEREIDES products in the United Kingdom. Handles local sales and customer relationships.
- SEMRAD (Australia)regionalDistributor for NEREIDES products in Australia. Handles local sales and customer support.
- Minic Hi-Tech (China)regionalDistributor for NEREIDES products in China. Handles local sales and customer relationships.
- FORTRADE (Morocco)regionalDistributor for NEREIDES products in Morocco. Handles local sales and customer support.
Scale indicators3 records
Recent moves5 records
Expansion highlights5 records
Nereides competitors and assessment
Company assessmentBroad incumbents
- HORIBA: Japanese-headquartered analytical and measurement instrument manufacturer with strong European presence in automotive, environmental, and process emissions testing. Comparable to Nereides in stack and ambient emissions analyzers, with much broader global footprint and R&D scale.
- Thermo Fisher Scientific: Major analytical instrument manufacturer with environmental and process monitoring portfolios including gas chromatography, FTIR, and air quality analyzers. Overlaps with Nereides' distributed SYNSPEC GC and OPSIS DOAS product lines from a position of much larger scale.
- Servomex (Spectris): UK-based specialist in gas and oxygen analyzers for industrial process and emissions markets. Overlaps with Nereides in stack monitoring, combustion analysis, and process gas measurement, often co-bidding in industrial customer tenders.
- Hach (Xylem): Specialist in water quality analysis instruments and reagents, owned by Xylem. Competes with Nereides' water quality monitoring and oil-in-water detection products at municipal and industrial water treatment customers.
- Endress+Hauser: Swiss-headquartered global leader in industrial process instrumentation, including water analysis and gas measurement. Nereides competes against Endress+Hauser in water quality and gas analysis at large industrial customers, although Endress+Hauser operates at a far larger scale.
- SICK AG: German manufacturer of industrial gas analyzers, process instrumentation, and environmental sensors. Competes with Nereides' air quality monitoring business across European industrial customers while offering broader product breadth in measurement and detection.
- AMETEK: US-listed manufacturer of process measurement and analytical instruments, including stack gas analyzers and water quality instruments. Overlaps with Nereides in industrial emissions and process gas monitoring, with broader scale and instrument breadth.
- Teledyne Marine / Teledyne Technologies: US-headquartered technology group with a substantial underwater/naval instrumentation portfolio (Teledyne Marine) and analytical instruments (Teledyne Technologies). Comparable to Nereides in oceanographic measurement platforms, sonar deployment winches, and submarine/naval sensors.
Direct peers
- OPSIS AB: Swedish manufacturer of DOAS gas analyzers that Nereides distributes in France. Operates its own direct sales channels elsewhere in Europe and Asia, competing with Nereides for end-customer relationships in markets where Nereides does not hold exclusive distribution.
- ENVEA (formerly Environnement S.A): French-headquartered environmental monitoring company offering CEMS, ambient air analyzers, and process gas measurement solutions. Direct competitor to Nereides in the French industrial emissions monitoring market, with overlapping customer set in cement, waste incineration, and power generation.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat5 records
Key risks6 records
Key highlights7 records
Customer concentration
Nereides social profiles
Digital presenceNereides compliance and trust
Trust signalCompliance3 records
Nereides financial estimates
Financial estimateRevenue estimate
Valuation estimate
Nereides leadership team
Management profileNumber of profiles
Nereides funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Nereides 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 Nereides
What does Nereides do?
NEREIDES studies, produces, integrates, operates, maintains and distributes high value-added instrumentation and solutions for environmental knowledge and measurement. The company manufactures its own products including OILSPY hydrocarbon detectors, OILSTOP closing valves, and complete wire antenna systems for submarines, while also serving as exclusive French distributor for partner brands OPSIS, SYNSPEC, LSE Monitors, ECOTECH, and OLICEM. The portfolio spans naval instrumentation, air and water quality analysis, oceanography, meteorology, and marine mechanics for industrial, defense, and research customers.
Is Nereides a public or private company?
Nereides is a private company. It is classified as founder individual operated bootstrapped and is currently operating.
When was Nereides founded?
Nereides was founded in 1970. It employs 11 to 50 people.
Where is Nereides based?
Nereides is headquartered in Villejust, France, in the Europe region.
How does Nereides make money?
Three revenue lines are on record. Environmental Instrumentation Products are the primary driver. The others are integration and Turnkey Systems and maintenance and After-Sales Services.
Who are Nereides's main competitors?
Broad incumbents on record are HORIBA, Thermo Fisher Scientific, Servomex (Spectris), Hach (Xylem), Endress+Hauser, SICK AG, AMETEK and Teledyne Marine / Teledyne Technologies. Direct peers are OPSIS AB and ENVEA (formerly Environnement S.A).
Does Nereides have an API?
No public API is recorded for Nereides.
What industry is Nereides in?
Nereides's product category is Industrial Environmental Instrumentation. Its primary akta.pro industry code is EUAEAHAL, Leak Detection, Emissions & LDAR Testing (OGI, methane, fugitive emissions), with a secondary code of EUANAJAC, Online Monitoring, Sensors & Instrumentation (SCADA-integrated analyzers, probes, samplers). Its NAICS code is 3345 and its SIC code is 3823.