Critical Flow Systems Ltd
Critical Flow Systems Ltd is a UK-based, founder-owned MCERTS inspection company that designs, installs and verifies flow measurement systems for major water utilities and industrial operators across England and Wales.
- Company typePrivate
- Founded1996
- HeadquartersAndoversford, United Kingdom
- Headcount1–10
- GTM typeB2B
- OfferingServices
Critical Flow Systems Ltd firmographics
Firmographics- Name
- Critical Flow Systems Ltd
- Legal name
- Critical Flow Systems Ltd
- Website
- https://criticalflow.co.uk
- Company type
- Private
- Founded year
- 1996
- Operating status
- Operating
- Headcount range
- 1–10 employees
- Short description
- Critical Flow Systems Ltd is a UK-based, founder-owned MCERTS inspection company that designs, installs and verifies flow measurement systems for major water utilities and industrial operators across England and Wales.
- Ownership category
- akta.pro rank
Critical Flow Systems Ltd industry classification
Industry- Product category
- Environmental Compliance Services
- NAICS
- Totalizing Fluid Meter and Counting Device Manufacturing (334514)
- SIC
- Totalizing Fluid Meters & Counting Devices (3824)
- akta.pro primary industry
- Field Operations & Repair Services (Emergency Response, Leak Repair, Crew Dispatch) (EUANAKAL)
- akta.pro secondary industries
- Leak Localization & Condition Assessment (Inline Inspection, GPR, CCTV for Water Mains) (EUANAKAF), Sensors & Feedback Devices (Pressure, Flow, Position, Encoders, Transducers) (IMAHAGAK)
Keywords
Where Critical Flow Systems Ltd is headquartered
LocationHeadquarters
- HQ city
- Andoversford
- HQ country
- United Kingdom
- HQ region
- Europe
Offices1 record
Markets served
Critical Flow Systems Ltd business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Personnel, Operations, Technology or R&D, Marketing or Sales, Others
Revenue model
- MCERTS Inspection Services: Independent site inspections for water utility and non-water utility companies to achieve MCERTS certification. Inspections cover flow measurement systems, flow audits, and QMS audits.
- Flow Measurement Products: Sale of proprietary products including Datum Reference calibration systems, Sun Shades for ultrasonic sensors, and open channel gauging structures (weirs, flumes, H flumes) in PVC/GRP and stainless steel.
- Training Services: Training courses in purpose-built training room with demonstration test rig. Courses for up to 10 persons provided on demand, covering MCERTS scheme and equipment operation.
- Maintenance, Calibration and Repair: Scheduled contracts or call-out services for maintaining, calibrating and repairing flow measurement equipment. Engineers carry calibrated survey and test equipment.
- Flow Measurement Design Services: Site visits to determine work area, site levels, flow rates and accessibility. Using Mflow software to design and fine tune measurement systems.
- Design Review Services: Review of proposed design drawings using Mflow software to check suitability, advise on modifications, and produce final design reports.
- Verification Reports: Verification reports using MCERTS standards for installations that may not require full MCERTS certification but need quality mark for installation or flow data accuracy.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Other | Multi-year contract | MCERTS Site Inspection |
| Unit Pricing | Pay-as-you-go | Flow Measurement Products |
| Other | Pay-as-you-go | Training Courses |
Go-to-market motion1 record
Distribution channels3 records
Marketing channels4 records
Critical Flow Systems Ltd product offering
Product offeringCore offering
Critical Flow Systems Limited is a certified MCERTS inspection company that conducts inspections, design, installation, maintenance, calibration, repair and training services for flow measurement systems used by water utility and non-water utility companies throughout the UK. The company supplements its services with proprietary hardware products (Datum Reference, Sun Shade, Gauging Structures, Event Duration Monitors) and its own Mflow flow computation software for system design and verification.
Product overview
Critical Flow Systems Ltd offers a portfolio of flow measurement products and services centred on MCERTS compliance certification. The core technology is the proprietary Mflow software, which underpins both the Flow Measurement Design and Design Review service lines. The product range includes the Datum Reference calibration system and Sun Shade sensor protection as add-on hardware modules, and Gauging Structures (Rectangular and V-Notch weirs, Rectangular flumes, H flumes) available in standardised kits or bespoke configurations. Event Duration Monitors (EDMs) support Flow4 storm event compliance. The company also delivers a suite of services: Installation, Flow Measurement Design, Design Review, Maintenance/Calibration/Repair, and Training. Several solutions originated as case study-driven innovations — including the Three Chamber Magnetic Meter System, H Flume System, and Pump Run Time Methodology — which have been refined into repeatable methodologies for the water utility and power generation sectors.
Differentiator
Problem solved
Functional benefit
Products and services
- MCERTS Inspection Services
- Installation Services
- Flow Measurement Design
- Design Review
- Maintenance, Calibration and Repair
- Training
- Datum Reference
- Sun Shade
- Gauging Structures
Quantifiable outcome
- Aberthaw Power Station saved over £100,000 using Pump Run Time Methodology
- +3 more outcomes
Companies that use Critical Flow Systems Ltd
Customer profileNamed customers9 records
Segments6 records
Ideal customer profiles3 records
Critical Flow Systems Ltd technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature7 records
Critical Flow Systems Ltd partnerships and signals
Strategic signalPartnerships
Six partnerships are on record, tiered core.
- UKWIR (UK Water Industry Research)coreSuccessfully bid to carry out UKWIR research project investigating potential use of final effluent flow measurement to demonstrate Flow To Treatment compliance. Project developed models showing retention time through sewage works and storm spill point identification.
- Servelec TechnologiescorePartnership with Servelec Technologies to successfully bid for UKWIR research project. Servelec carried out background research and developed two models to trial for final effluent flow measurement demonstration.
- E.ONcoreCollaborated with E.ON to develop the Pump Run Time Methodology for power generation sites. Working with E.ON, JEP group and the MCERTS steering committee, an accepted method was developed to calibrate and report pump run times to supply flow data. First implemented at Aberthaw Power Station, saving over £100,000.
- JEP GroupcoreCollaborated on developing Pump Run Time Methodology for MCERTS compliance at power generation sites. Method involves measuring pressure differential across pumps and using pump characteristic curves to determine flow rates.
- CSA Sira CertificationcoreCSA Sira Certification (on behalf of the Environment Agency) issues MCERTS certificates after successful inspection and QMS audit. CFS applies to CSA Sira Certification for certificates after inspections are completed. CSA Sira also conducts QMS audits.
- MCERTS Steering CommitteecoreCFS sits on MCERTS steering group, working with Environment Agency, Natural Resources Wales and Water Utilities to continually improve the scheme.
Scale indicators9 records
Recent moves6 records
Expansion highlights5 records
Critical Flow Systems Ltd competitors and assessment
Company assessmentDirect peers
- Hydro-Logic Services: UK environmental and water-quality monitoring services firm offering flow measurement and compliance support to water utilities and regulators. Closest direct peer in MCERTS-style inspection and field services.
- ADS Environmental Services: US-based flow monitoring services company providing temporary and permanent wastewater flow monitoring and data services to utilities. Directly comparable service model focused on compliant flow data for wastewater.
- Detectronic: UK-based specialist in flow monitoring, MCERTS-certified instrumentation and wastewater monitoring services. Directly comparable niche peer serving UK utilities with similar compliance-led inspection offerings.
- Enviro Technology Services: UK distributor and service provider for MCERTS-certified water-quality and flow monitoring instruments. Overlaps with CFS on instrumentation supply, calibration and compliance services for the UK water sector.
Broad incumbents
- KROHNE: Global manufacturer of process instrumentation including electromagnetic, ultrasonic and variable area flowmeters used in water and wastewater. Broad incumbent supplying the same class of flow meters that CFS inspects and verifies.
- Veolia Water Technologies: Large water and wastewater solutions provider offering monitoring, treatment and compliance services to utilities globally. Overlaps with CFS where it provides MCERTS-adjacent flow and effluent monitoring work.
- Endress+Hauser: Global manufacturer of industrial flow, level and analytical measurement instruments with service networks in water/wastewater. A broad incumbent supplying flow meters and related services that CFS inspects and integrates.
- Stantec (UK Water): Global engineering and consulting firm with significant UK water-utility practice, including flow monitoring, compliance and asset management. Broad incumbent whose water-services work intersects CFS's domain.
- Xylem (including its Smith & Loveless and Idex predecessor units): Global water technology company offering flow measurement, smart metering and wastewater solutions. Large incumbent overlapping with CFS in flow measurement hardware and water-utility services.
- ABB Measurement & Analytics: Global supplier of flow meters and analytical instrumentation for water, wastewater and industrial applications. Overlaps with CFS in flow measurement technology deployed at utility sites.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat5 records
Key risks6 records
Key highlights7 records
Customer concentration
Critical Flow Systems Ltd social profiles
Digital presenceCritical Flow Systems Ltd compliance and trust
Trust signalCompliance7 records
Critical Flow Systems Ltd financial estimates
Financial estimateRevenue estimate
Valuation estimate
Critical Flow Systems Ltd leadership team
Management profileNumber of profiles
Profiles26 records
Critical Flow Systems Ltd funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Critical Flow Systems Ltd 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 Critical Flow Systems Ltd
What does Critical Flow Systems Ltd do?
Critical Flow Systems Limited is a certified MCERTS inspection company that conducts inspections, design, installation, maintenance, calibration, repair and training services for flow measurement systems used by water utility and non-water utility companies throughout the UK. The company supplements its services with proprietary hardware products (Datum Reference, Sun Shade, Gauging Structures, Event Duration Monitors) and its own Mflow flow computation software for system design and verification.
Is Critical Flow Systems Ltd a public or private company?
Critical Flow Systems Ltd is a private company. It is classified as family owned and is currently operating.
When was Critical Flow Systems Ltd founded?
Critical Flow Systems Ltd was founded in 1996. It employs 1 to 10 people.
Where is Critical Flow Systems Ltd based?
Critical Flow Systems Ltd is headquartered in Andoversford, United Kingdom, in the Europe region.
How does Critical Flow Systems Ltd make money?
Seven revenue lines are on record. MCERTS Inspection Services are the primary driver. The others are flow Measurement Products, training Services, maintenance, Calibration and Repair, flow Measurement Design Services, design Review Services and verification Reports.
Who are Critical Flow Systems Ltd's main competitors?
Direct peers on record are Hydro-Logic Services, ADS Environmental Services, Detectronic and Enviro Technology Services. Broad incumbents are KROHNE, Veolia Water Technologies, Endress+Hauser, Stantec (UK Water), Xylem (including its Smith & Loveless and Idex predecessor units) and ABB Measurement & Analytics.
Does Critical Flow Systems Ltd have an API?
No public API is recorded for Critical Flow Systems Ltd.
What industry is Critical Flow Systems Ltd in?
Critical Flow Systems Ltd's product category is Environmental Compliance Services. Its primary akta.pro industry code is EUANAKAL, Field Operations & Repair Services (Emergency Response, Leak Repair, Crew Dispatch), with a secondary code of EUANAKAF, Leak Localization & Condition Assessment (Inline Inspection, GPR, CCTV for Water Mains). Its NAICS code is 334514 and its SIC code is 3824.