What NMi does

NMi is a Dutch Testing, Inspection, and Certification (TIC) organization and EU Notified Body headquartered in Delft, Netherlands, specializing in legal metrology for measuring and weighing instruments. Founded in 1873 as the Netherlands Measurement Institute and now operating as NMi Certin B.V., the company provides type examination, conformity assessment, calibration, testing, inspection, and training services across regulated verticals including utilities (smart electricity, gas, and water meters), EV charging infrastructure, weighing instruments, mobility (speed and taxi meters), liquid and gas flow measurement, batteries, and cybersecurity compliance. The firm holds mandatory regulatory designations including Notified Body status under the EU Measuring Instruments Directive (MID 2014/32/EU) and Non-Automatic Weighing Instruments Directive (NAWI 2014/31/EU), OIML Issuing Authority status for R61, and ISO/IEC 17065/17025/17020/17021-1 accreditations from the Dutch Accreditation Council (RvA).

Revenue is generated through project-based professional services fees for certification, testing, and inspection engagements, complemented by training and accredited calibration services. The company has expanded its offering through two acquisitions — UK-based Chamois Metrology (May 2022) for UKAS-accredited calibration and UK market access post-Brexit, and ExVeritas (integrated 2026) for ATEX/IECEx explosion protection certification. A tiered subscription model (Initiate, CONNECT digital portal, GUIDE premium service) overlays recurring fees on top of project work, and strategic partnerships — notably with Bureau Veritas for Asian EV charger manufacturers and active participation in OIML, IEC, CENELEC, WELMEC, and NMI-Q standards bodies — extend reach into new customer origins and emerging verticals such as EU Battery Regulation compliance, Cyber Resilience Act preparedness, hydrogen refueling, and quantum metrology.

Name

NMi

Legal name

NMi Certin B.V.

Website

https://nmi.nl

Company type

Private

Founded year

1873

Operating status

Operating

Headcount range

251–500 employees

Short description

NMi is a Dutch EU Notified Body providing testing, inspection, certification, and calibration services for measuring and weighing instruments, serving global manufacturers across utilities, EV charging, weighing, mobility, and oil and gas verticals from its Delft headquarters.

Ownership category

akta.pro rank

Product category

Metrology Testing, Inspection and Certification Services

NAICS

Testing Laboratories and Services (54138), Testing Laboratories and Services (541380), Professional, Scientific, and Technical Services (54)

SIC

Services-Testing Laboratories (8734), Services-Commercial Physical & Biological Research (8731)

akta.pro primary industry

Standards, Metrology & Accreditation Bodies (BPAIAOAC)

Keywords

• Metrology certification services
• Measuring instrument testing
• Weighing instrument inspection
• Calibration laboratory services
• Regulatory compliance services

Headquarters

HQ city

Delft

HQ country

Netherlands

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Technology or R&D, Infrastructure, Marketing or Sales

Revenue model

1. Certification Services: Fees for type examination, certification of quality systems, and conformity assessment under EU directives (MID, NAWI) and international standards (OIML). Revenue generated through project-based engagements with manufacturers seeking market access certification.
2. Testing and Inspection Services: Laboratory testing for measuring instruments including accuracy, safety, environmental, and performance testing. Inspection services for verification of measuring instruments.
3. Training Services: Educational courses and seminars on metrology standards, regulations, and compliance. Training provided through NMi Academy covering topics like MID software requirements, standards updates, and certification processes.
4. Calibration Services: Accredited calibration services for measuring instruments, expanded through acquisition of Chamois Metrology in the UK.
5. Tiered Services Packages: Tiered service offerings including basic Project Commissioning, CONNECT (digital portal with centralized document management), and GUIDE (premium service with dedicated coordinators and fast-track approvals).

Pricing tiers

Go-to-market motion1 record

Distribution channels4 records

Marketing channels7 records

Core offering

NMi Certin B.V. provides independent testing, inspection, certification, calibration, and training services for measuring and weighing instruments, operating as an EU Notified Body under the MID and NAWI directives and as an OIML Issuing Authority. Service revenue is generated through project-based certification engagements, laboratory testing, calibration programs, training courses, and tiered service packages delivered to manufacturers seeking regulatory market access across the EU, UK, and international markets.

Product overview

NMi is a certification and testing organization (Notified Body) for measuring instruments, not a software product company. The company operates as NMi Certin providing integrated certification, testing, inspection, and training services organized around regulatory compliance for measuring instruments. The core offerings include NMi Certin certification services, testing and inspection for various measuring instrument types (utility meters, EV charging, weighing, liquid/gas, mobility, force), and verification services. Supporting services include market access, training, remote auditing, and cybersecurity compliance. The company has expanded through acquisitions (ExVeritas for explosion protection, Chamois Metrology for UK calibration) and offers tiered service levels through the myNMi digital portal. Services span EU directives (MID, NAWI, Battery Regulation, Cyber Resilience Act), international standards (OIML, IEC, CENELEC), and national regulations for UK, Germany, and other markets.

Differentiator

Problem solved

Functional benefit

Products and services

• NMi Certin Certification Services

Quantifiable outcome

• Expedited market access through flexible early-stage evaluations vs traditional certification approaches
• +1 more outcomes

Named customers4 records

Segments8 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Partnerships

Eleven partnerships are on record, tiered core and minor.

• Bureau VeritascoreStrategic or Co-development Partner · 7 April 2026NMi Certin and Bureau Veritas are cooperating to support EV charging manufacturers in Asia seeking European market access. The partnership coordinates testing and MID conformity assessment phases, providing manufacturers with clearer requirements at each stage and a more coherent certification experience.
• NMI-Q (National Metrology Institutes for Quantum)coreStrategic or Co-development Partner · 4 November 2025NMi participates in NMI-Q, an international alliance comprising National Metrology Institutes from G7 nations and Australia, launched to advance standards and measurement science for quantum technologies. The initiative coordinates research and develops best practices for quantum commercialization.
• Chamois MetrologycoreTechnology or Integration · 9 May 2022NMi acquired UK-based Chamois Metrology, a UKAS-accredited calibration services provider. This acquisition expands NMi's footprint in the UK and Europe and diversifies its calibration offerings while strengthening its customer base.
• ExVeritascoreTechnology or IntegrationExVeritas was brought into the NMi Group to provide seamless metrology and explosion protection (ATEX and IECEx) certification services under one organization. This integration combines Ex certification with metrology expertise for hazardous environment measuring instruments.
• STS AssociationminorStrategic or Co-development PartnerNMi co-presents webinars with the Standard Transfer Specification (STS) Association on certification of prepayment meters under SANS 1524-1 standards for South Africa market, exploring compliance requirements and STS protocol for interoperability.
• OIML (International Organization of Legal Metrology)coreOthersInternational standards organization partnership. NMi participates in OIML TC 12 meetings on electricity meters and TC 8 for measurement standards. NMi is an OIML Issuing Authority for OIML R61 (Automatic Gravimetric Filling Instruments) under scheme B.
• IEC and CENELECcoreOthersInternational and European standards bodies for electrical equipment. NMi participates in IEC TC 13 (electricity metering equipment) and CENELEC TC 13 meetings to stay current on evolving standards for electricity meters and EV charging systems.
• WELMECcoreOthersEuropean cooperation in legal metrology. NMi participates in WELMEC working groups (WG2, WG7, WG8, WG11) addressing type evaluation, software requirements, and market surveillance for measuring instruments.
• ElexonminorStrategic or Co-development PartnerNMi partners with Elexon (administrators of the Balancing and Settlement Code) for webinars on Great British Codes of Practice compliance for metering systems, particularly relevant for EV charging stations and energy storage systems.
• Dutch Accreditation Council (RvA)coreOthersNMi holds accreditation from the Dutch Accreditation Council (RvA) for ISO/IEC 17025 testing, ISO/IEC 17020 inspection, and ISO/IEC 17065 certification activities. RvA periodically assesses NMi's activities for compliance.
• RDI (formerly Agentschap Telecom)coreOthersDutch regulator for digital infrastructure. NMi works with RDI on verification services, enforcement equipment testing, and regulatory compliance. RDI provides insights on handhaving (enforcement) of metrology regulations in the Netherlands.

Scale indicators3 records

Recent moves5 records

Expansion highlights7 records

Direct peers

• DEKRA: German-based TIC company with strong automotive and industrial focus. Holds Notified Body status for EU directives, providing testing, inspection, and certification services that directly compete with NMi in industrial, EV, and metrology-related verticals.
• SGS: World's largest TIC company by revenue, providing inspection, verification, testing, and certification services globally. SGS operates in industrial testing, EV-related certification, and metrology-adjacent services, with broad geographic and vertical overlap with NMi's offerings.
• Intertek: Major global TIC company providing testing, inspection, and certification services across industrial, consumer products, and energy sectors. Intertek's product qualification and certification services overlap with NMi's testing, certification, and market access offerings.
• Trescal: Specialized calibration services company with global operations. Direct competitor in calibration services — the segment NMi entered through the Chamois Metrology acquisition — serving industrial, aerospace, and laboratory customers with similar accredited calibration offerings.
• TÜV SÜD: Major German-based TIC company providing testing, inspection, and certification across automotive, industrial, energy, and consumer products. Holds Notified Body designations for multiple EU directives including MID and NAWI, directly competing with NMi in metrology certification and EV charging.
• Bureau Veritas: Global TIC giant and NMi's named partner. Bureau Veritas provides testing, inspection, and certification services including MID conformity assessment, EV charging certification, and explosion protection — directly overlapping NMi's service portfolio across utilities, EV charging, oil & gas, and industrial verticals.
• TÜV Rheinland: German-based TIC company providing testing and certification across multiple industries. Holds Notified Body status for EU directives and competes with NMi in industrial equipment, EV, and metrology-related certification services.

Regional players

• METAS (Federal Institute of Metrology, Switzerland): Swiss national metrology institute providing calibration, reference measurement, and metrology services. Regional peer with similar metrology focus and accreditation scope, though state-owned and serving primarily the Swiss market.
• NPL (National Physical Laboratory, UK): UK national metrology institute providing measurement standards, calibration, and testing services. Comparable scope to NMi in metrology testing and standards-setting, though primarily government-funded and focused on the UK market.

Broad incumbents

• Element Materials Technology: Global testing and certification company focused on materials and product qualification across aerospace, energy, transportation, and industrial sectors. Provides testing and certification services that overlap with NMi's testing, inspection, and product certification business, but with a much broader industry footprint.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks7 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/channel/UCPcMc1hpSI4VOpvftg72FlA
• LinkedInlinkedin.com/company/nmi-certin
• Xtwitter.com/nmi_certin

Compliance19 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles6 records

Subsidiaries3 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A1 record

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about NMi