FourPhase

What FourPhase does

FourPhase is a Norwegian industrial-technology company specializing in solids separation and management for offshore oil and gas operations. Founded in Bergen in January 2012 and PE-backed by EV Private Equity since April 2014, the company designs, deploys, and operates the DualFlow™ dual cyclone desander, a patented unit integrating roughly 560 inbuilt sensors, a patented real-time solids weighing system, a closed-loop flushing system, and DNV-certified 99.8% separation efficiency. The company is led by founder Anders Arefjord in a Solution Architect role and operates from Bergen with offices in Aberdeen and Forfar (UK) and Houston (USA), serving enterprise customers including Aker BP, Equinor, Talos Energy, and Harbour Energy across Norway, the UK North Sea, the US Gulf of Mexico, the Middle East, the Caspian, and North Africa.

The company's revenue model combines equipment and hardware supply with Solids Management as a Service (SMaaS™) campaign contracts and a recurring remote-monitoring/digital-integration layer delivered via the Observer™ platform launched in 2023. By 2022 FourPhase had executed more than 100 operations, completed 22 campaigns in the year with a peak of 12 simultaneous deployments, and reported 99.9% uptime and 0.07% non-productive time across 130,000 operating hours, claiming up to $30M of incremental customer profit per campaign and an average 35% production uplift on choked-back wells. Customer acquisition was active in 2022 (five new enterprise customers added) and the company was recognized as ESG Portfolio Company of the Year by its sponsor.

Mechanically, the DualFlow™ unit is paired with what FourPhase describes as the world's largest solids-management database — built continuously since 2013 across the installed base — which feeds smart-erosion software, digital-twin modeling, and trend-based predictive analytics surfaced to operators through Observer™. Headcount stood at 80-90 as of 2022-2023 across field operations, engineering, ESG/quality, and digital functions. No public revenue, ARR, or pricing data is disclosed, and the company's filings are not public.

Name

FourPhase

Legal name

FourPhase AS

Website

https://fourphase.com

Company type

Private

Founded year

2012

Operating status

Operating

Headcount range

51–100 employees

Short description

FourPhase is a Norwegian industrial-technology company that designs and operates the DualFlow™ dual cyclone desander and Observer™ remote-monitoring platform to provide Solids Management as a Service (SMaaS™) for offshore oil and gas operators across Europe, the Americas, and the Middle East.

Ownership category

akta.pro rank

Product category

Upstream Oil and Gas Solids Management Equipment

NAICS

Oil and Gas Field Machinery and Equipment Manufacturing (333132)

SIC

Oil & Gas Field Machinery & Equipment (3533)

akta.pro primary industry

Field Treating & Separation (Heater Treaters, Separators, LACT) (EUALACAI)

akta.pro secondary industry

Oilfield Equipment Manufacturing & Supply (Wellheads, BOPs, Surface Equipment) (EUALABAL)

Keywords

• Solids management
• Cyclonic desanding
• Hydrocarbon production
• Well intervention services
• Upstream oil and gas equipment

Headquarters

HQ city

Bergen

HQ country

Norway

HQ region

Europe

Offices4 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Solids Management as a Service (SMaaS™): FourPhase provides managed solids management services — operating their equipment on the customer's offshore facility with FourPhase personnel. Covers both short-term intervention (well cleanout, flowback) and long-term permanent infrastructure deployments. Customers engage on a per-operation or contractual basis.
2. Equipment & Hardware Sales: Sale of solids separation systems including DualFlow™ desanders (5K and 10K psi variants), Bulk Desander, Observer™, choke manifolds, and auxiliary components. Modular, bespoke configurations specified per customer challenge.
3. Remote Monitoring & Digital Integration Services: Remote monitoring and data integration services using OPCUA interface to existing platform control systems, Data Historians, or third-party interfaces. Ongoing support and remote operations from the OTC.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels6 records

Core offering

FourPhase designs, manufactures and operates patented cyclonic solids separation systems — primarily the DualFlow dual-cyclone desander, Bulk Desander, and Observer remote monitoring platform — for offshore and onshore oil and gas operators. The company delivers these systems either as equipment sales or through its Solids Management as a Service (SMaaS) model, in which FourPhase personnel deploy and run the equipment on the customer's facility. Core applications include optimised production from sand-producing wells, coiled tubing flowback support, online separator jetting, produced water management, and plug & abandonment operations.

Product overview

FourPhase is an industrial technology company specializing in solids separation for the oil and gas industry. Their product portfolio centers on the DualFlow™ dual cyclone desander as the core product, supplemented by the Bulk Desander for multi-well high-volume applications and the Observer™ remote monitoring system. These systems are supported by auxiliary modular components including choke manifolds, filter units, and RockCatcher. The DualFlow operates as an adaptive technology platform with advanced digital capabilities, combining automated solids management with real-time data capture to enhance operational, commercial, and environmental performance.

Differentiator

Problem solved

Functional benefit

Brands

• DualFlow™: The only dual cyclone desander on the market with a 2x2 meter footprint. Automated and remote-operated solids management system with 99.8% separation efficiency.
• Bulk Desander
• Observer™
• SMaaS™

Products and services

• DualFlow™ The company's flagship dual cyclone desander: two patented single-liner cyclones in one compact 2x2m unit delivering DNV-certified 99.8% separation efficiency across a 20 micron to 10mm dynamic range. Features ~560 inbuilt sensors, automated interlocking valves, remote operation capability, and a closed-loop flushing system. Designed for offshore and onshore oil and gas operators managing sand-producing wells.
• Bulk Desander A modular multi-cyclone solids separation system designed to manage solids from multiple wells and high-volume production. Features multiple modular cyclones that can be flexibly configured and automated for high-throughput applications. For oil and gas operators needing bulk solids management across multiple wells.
• Observer™ Remote monitoring system enabling shore-based monitoring of solids management operations. Connects FourPhase systems to customers and the company's Operations & Technology Centre (OTC) via OPCUA. For offshore and onshore operators seeking real-time visibility into solids production data.
• Solids Management as a Service (SMaaS™) A managed service delivery model under which FourPhase deploys and operates its DualFlow, Bulk Desander and associated systems on the customer's offshore or onshore facility, with FourPhase personnel managing the operation. Covers short-term well intervention engagements (cleanouts, flowback) and long-term permanent infrastructure installations. For oil and gas operators seeking outsourced solids management.
• Auxiliary Equipment Modular components combined with FourPhase's desanders to create bespoke, solution-orientated separation systems. Includes choke manifolds, filter units, and RockCatcher. For oil and gas operators building application-specific solids management configurations.

Quantifiable outcome

• 35% average production increase on choked-back wells
• +8 more outcomes

Named customers10 records

Segments4 records

Ideal customer profiles2 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration1 record

AI capability5 records

Feature10 records

Partnerships

One partnership is on record.

• Centurion Pressure ControlsupportingOthersUK workshop and testing facility partnership. FourPhase's Forfar, Scotland location is hosted at Centurion Pressure Control's facility, where FourPhase conducts equipment build, maintenance, and pre-deployment testing.

Scale indicators13 records

Recent moves6 records

Expansion highlights5 records

Broad incumbents

• SLB (Schlumberger): Global oilfield services leader offering integrated production optimization and sand-management solutions. Competes with FourPhase on large IOC/NOC tenders where bundled service contracts dominate, but does not focus exclusively on topside cyclonic solids separation.
• Halliburton: Major oilfield services company with production solutions and sand-control offerings spanning drilling to production. Comparable as a broad incumbent addressing the same offshore operators with overlapping production-optimization capabilities.
• Baker Hughes: Large diversified oilfield services and industrial energy technology company. Comparable through its production solutions and downstream/chemical adjacencies relevant to produced water and solids handling for offshore operators.
• Weatherford International: Oilfield services company with sand management, production, and well intervention offerings. Directly comparable as a competing provider of solids management solutions to offshore operators across multiple basins.
• NOV (National Oilwell Varco): Equipment manufacturer for drilling, completion, and production operations. Comparable through its solids-control equipment portfolio and global manufacturing footprint serving offshore production assets.
• Forum Energy Technologies: Diversified oilfield equipment manufacturer with production and subsea product lines including separation and processing equipment. Comparable as a broader-portfolio competitor producing solids-handling and process equipment for offshore operators.

Emerging players

• ENPRO Subsea: Subsea production technology specialist addressing sand management and flow assurance challenges. Comparable as a niche provider of solids-handling technology targeting similar offshore operator pain points, though with a subsea rather than topside focus.
• Tendeka: Independent specialist in sand control and zonal isolation technology. Comparable as a niche sand-management peer serving similar offshore and mature-field operators, though focused more on downhole sand control than topside separation.
• RGL Reservoir Management: Flow assurance and sand management specialist serving North Sea and international operators. Comparable as a niche peer addressing solids production and produced water challenges with similar customer profile.

Regional players

• Cactus Wellhead: Wellhead and production equipment provider serving North American shale and conventional operators. Comparable as a supplier of production-surface equipment to upstream operators, though focused regionally on North American onshore vs FourPhase's offshore-heavy mix.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks5 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/5079671
• Facebookfacebook.com/FourPhaseAS

Compliance10 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles7 records

Subsidiaries2 records

Funding overview

Funding rounds1 record

Investors1 record

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

M&A

Investments

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

Frequently asked questions about FourPhase