What Constant Power Services does

Constant Power Services Ltd was a UK-based uninterruptible power supply (UPS) specialist and wholly owned subsidiary of Italian UPS manufacturer RPS SpA, operating from Wrexham. The company supplied a comprehensive portfolio of UPS systems spanning 400 VA to 1,600 kVA, including online (Sentinel, Sentryum, Multi Power, Master, NextEnergy), line-interactive (Vision, Net Power), and VFD (iPlug, iDialog) product families, alongside central power supplies, transfer switches, generator sets, and a proprietary software and connectivity stack (PowerShield3, PowerNetGuard, NetMan 208C, MultiCom series). Service offerings including preventive maintenance, battery maintenance, health checks, emergency response and repairs, overhauls, data centre design consultancy, and a 5-year warranty on UPS products up to 3 kVA.

The company served UK B2B customers across five primary verticals: data centres, industrial facilities, medical institutions, transport infrastructure, and emergency services, with a secondary digital living/consumer segment. Go-to-market was direct enterprise field sales via phone and website inquiry, with quote-based pricing on multi-year contracts. Effective 1 January 2025, Constant Power Services Ltd merged with Power Tecnique Ltd and the existing UK Riello UPS operations into a unified Riello UPS Ltd entity headquartered at Wrexham Industrial Estate, consolidating all RPS SpA UK subsidiary operations under a single brand to deliver enhanced product offerings and expanded customer support.

Name

Constant Power Services

Legal name

Constant Power Services Ltd

Website

https://constantpowerservices.com

Company type

Private

Founded year

1989

Operating status

Operating

Headcount range

11–50 employees

Short description

Constant Power Services supplies UPS systems (400 VA to 1,600 kVA), generators, transfer switches, and maintenance services to UK data centre, industrial, medical, transport, and emergency customers. As of January 2025, it merged into unified Riello UPS Ltd.

Ownership category

akta.pro rank

Product category

Uninterruptible Power Supply (UPS) Systems

NAICS

Switchgear and Switchboard Apparatus Manufacturing (335313), Electric Power Generation (22111), Electric Power Transmission, Control, and Distribution (22112)

SIC

Electronic & Other Electrical Equipment (No Computer Equip) (3600), Motors & Generators (3621), Switchgear & Switchboard Apparatus (3613)

akta.pro primary industry

Uninterruptible Power Supplies (UPS) (HDACAJAA)

akta.pro secondary industries

UPS Systems & Backup Power (Online/line-interactive UPS, industrial backup) (IMAGADAD), Power Distribution & Switchgear (UPS, PDUs, Busway) (HDABAKAA), Replacement Parts, Maintenance & Service (UPS/Power Protection) (HDACAJAH), UPS Accessories & Monitoring (Network Cards, Software, Sensors) (HDACAJAF), Backup Power & Critical Power Systems (Generators/UPS) (IMAIABAJ)

Keywords

• Uninterruptible power supply
• UPS systems
• Power protection hardware
• Standby generators
• UPS maintenance services

Headquarters

HQ city

Legnago

HQ country

Italy

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Personnel, Operations, Marketing or Sales, Infrastructure

Revenue model

1. UPS Hardware Sales: Sale of uninterruptible power supply systems ranging from small 400 VA units to large 1600 kVA installations
2. UPS Maintenance Services: Recurring maintenance contracts including health checks, battery maintenance, on-site services, emergency response and repairs, overhauls
3. Generator Maintenance Services: Maintenance, servicing, testing and health checks for generator systems
4. Data Centre Design & Consultancy: Professional services for data centre UPS design and consultancy
5. Warranty Services: 5-year warranty on UPS products up to 3 kVA
6. Software & Connectivity Products: PowerShield3, PowerNetGuard, NetMan cards, environmental sensors, and MultiCom communication products

Pricing tiers

Go-to-market motion1 record

Distribution channels2 records

Marketing channels5 records

Core offering

Constant Power Services supplies uninterruptible power supply (UPS) systems, transfer switches, standby generator sets, and associated monitoring software and connectivity products spanning 400 VA to 1600 kVA. The company also delivers installation, preventive maintenance, battery servicing, emergency response, overhauls, and data centre UPS design consultancy to enterprise customers in the UK.

Product overview

Constant Power Services (now unified under Riello UPS Ltd as of January 2025) is a power protection company offering a comprehensive portfolio of uninterruptible power supply (UPS) systems across multiple form factors and power capacities, ranging from 400 VA to 1600 kVA. The product portfolio is organized into four core hardware categories: Online UPS systems (Sentinel, Sentryum, Multi Power, Master, and NextEnergy series) for mission-critical applications; Central Power Supplies (CSS series) for safety-critical infrastructure; Transfer Systems (Multi Switch, Master Switch) for automatic power source switching; and Generator Sets (Open Frame, Canopied, and Bespoke solutions) for standby power generation. Supporting these hardware platforms is an extensive software and connectivity ecosystem including PowerShield³, PowerNetGuard, and NetMan network management cards, alongside MultiCom communication modules and Environmental Sensors for comprehensive remote monitoring. The company also provides a full suite of services including preventive maintenance, health checks, battery maintenance, emergency repairs, and data center design consultancy. Following the merger with Power Tecnique Ltd into Riello UPS Ltd, all products and services are now consolidated under the unified Riello UPS brand.

Differentiator

Problem solved

Functional benefit

Products and services

• Sentinel Pro2 UPS (700 - 3000 VA) Online UPS delivering 700 to 3000 VA of continuous power protection for small business and edge IT applications.
• Sentinel Rack UPS (1.5 - 3 kVA) Rack-mountable online UPS providing 1.5 to 3 kVA power protection for server racks and small data centre installations.
• Sentinel Dual2 UPS (1000 - 3000 VA) Dual-input online UPS delivering 1000 to 3000 VA capacity with configurable power paths for redundancy.
• Sentinel Dual SDU UPS (4 - 10 kVA) Split-phase dual-conversion online UPS providing 4 to 10 kVA capacity for medium-scale power protection.
• Sentinel Tower UPS (5 - 10 kVA) Tower-format online UPS delivering 5 to 10 kVA for standalone small/medium power protection installations.
• Sentryum UPS (10 - 120 kVA) Mid-range online UPS providing 10 to 120 kVA capacity for critical infrastructure and data centre applications.
• Multi Sentry UPS (160 - 200 kVA) High-capacity online UPS providing 160 to 200 kVA protection for large-scale data centres and industrial sites.
• Multi Power Modular UPS (45 - 294 kVA) Modular online UPS offering scalable 45 to 294 kVA capacity for flexible data centre power architectures.
• Multi Power2 Modular UPS (120 - 600 kVA) Second-generation modular UPS delivering 120 to 600 kVA with enhanced efficiency and scalability.
• Multi Power2 Scalable Modular UPS (1000 - 1600 kVA) Highly scalable modular UPS system providing 1000 to 1600 kVA capacity for enterprise and hyperscale data centres.
• Sentryum Rack UPS (20 - 160 kVA) Rack-mountable Sentryum-based online UPS providing 20 to 160 kVA for data centre rack installations.
• Master MPS UPS (10 - 200 kVA) Industrial-grade online UPS providing 10 to 200 kVA for demanding applications and critical infrastructure.
• NextEnergy NXE UPS (250 - 800 kVA) High-capacity energy-efficient online UPS providing 250 to 800 kVA for large facility power protection.
• Master HE UPS (100 - 800 kVA) High-efficiency online UPS providing 100 to 800 kVA with optimised energy performance.
• Master HP UPS (100 - 600 kVA) High-performance online UPS delivering 100 to 600 kVA for critical power applications.
• Master Industrial UPS (30 - 80 kVA) Industrial-specific online UPS providing 30 to 80 kVA designed for manufacturing and harsh environments.
• Master FC400 Frequency Converter UPS (30 - 125 kVA) Frequency-converter online UPS providing 30 to 125 kVA for applications requiring frequency conversion.
• Net Power Line-Interactive UPS (600 - 2000 VA) Line-interactive UPS providing 600 to 2000 VA capacity for basic power protection and backup.
• Vision Line-Interactive UPS (800 - 2000 VA) Line-interactive UPS providing 800 to 2000 VA capacity featuring LCD display and advanced monitoring.
• Vision Rack Line-Interactive UPS (800 - 1100 VA) Rack-mountable line-interactive UPS providing 800 to 1100 VA for small server and networking setups.
• Vision Dual Line-Interactive UPS (1.1 - 3 kVA) Dual-input line-interactive UPS providing 1.1 to 3 kVA capacity for enhanced power redundancy.
• iPlug VFD UPS (600 - 800 VA) Entry-level VFD UPS providing 600 to 800 VA capacity for basic backup power needs.
• iDialog VFD UPS (400 - 1600 VA) Compact VFD UPS providing 400 to 1600 VA capacity for desktop and small office power protection.
• Lithium Battery UPS Solutions UPS systems configured with lithium-ion battery technology offering longer lifespan, lower weight, and faster charging versus lead-acid.
• SuperCaps UPS Supercapacitor-based UPS solution delivering ultra-fast response times and extended cycle life for short-duration backup.
• Sentinel Dual Marine UPS Marine-certified dual-conversion UPS for maritime and offshore applications with enhanced vibration and salt-mist resistance.
• Temporary Containerised UPS Solutions Mobile, container-based UPS installations providing temporary power protection for events, construction, or emergency backup.
• CSS Sentinel Tower Central Power Supply (3 - 5 kVA) Central power supply unit based on the Sentinel Tower platform providing 3 to 5 kVA capacity for critical safety systems.
• CSS Sentryum Central Power Supply (6 - 120 kVA) Central power supply system using Sentryum technology providing 6 to 120 kVA capacity for safety-critical applications.
• CSS Master Central Power Supply Master-series central power supply unit for high-capacity safety and emergency applications.
• Open Frame Generators Open-frame standby generator systems for permanent installation in industrial and commercial backup power applications.
• Canopied Generators Enclosed generator sets with weatherproof canopies for outdoor installation and reduced-noise operation.
• Bespoke Standby Generator Solutions Custom-engineered standby generator systems designed to meet specific site requirements and power needs.
• PowerShield³ Monitoring Software UPS monitoring and management software providing shutdown management, event logging, and remote control for connected UPS systems.
• PowerNetGuard Management Software Network-based UPS management software for monitoring and controlling multiple UPS units across distributed IT infrastructure.
• UPS Maintenance Service Preventive maintenance services for UPS systems including inspection, testing, firmware updates, and performance verification.
• UPS Health Check Service Diagnostic health assessment evaluating UPS condition, battery status, and identifying potential failure points.
• UPS Battery Maintenance Service Specialised battery maintenance including testing, replacement, and lifecycle management for UPS battery systems.
• Riello Connect Remote Monitoring Service Remote monitoring service providing continuous UPS supervision and proactive issue identification.
• On-Site UPS Services On-site technical services including UPS installation, commissioning, and emergency field support.
• Emergency Response & UPS Repair Service Rapid emergency response and repair services for UPS failures with contractual response-time SLAs.
• UPS Overhaul Service Complete UPS refurbishment and overhaul services restoring older units to optimal operating condition.
• Data Centre UPS Design & Consultancy Service Consulting services for data centre power infrastructure design, including capacity planning and redundancy architecture.
• Generator Maintenance Service Preventive generator maintenance, servicing, testing, and health checks for standby generator systems.

Quantifiable outcome

• 5-year warranty on UPS products up to 3 kVA

Segments6 records

Ideal customer profiles1 record

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature12 records

Partnerships

One partnership is on record.

• RPS SpAcoreOthers · 1 January 2025Italian parent company RPS SpA is the manufacturer and owner of the Riello UPS brand. The company merger integrates all wholly owned UK subsidiaries of RPS SpA into unified Riello UPS Ltd.

Scale indicators2 records

Recent moves4 records

Expansion highlights6 records

Broad incumbents

• Vertiv: Global provider of critical digital infrastructure including UPS systems, power distribution, and thermal management for data centres. Comparable because Vertiv competes head-to-head with Riello in modular UPS (Liebert) and services for data centre and industrial customers in the UK.
• Eaton: Global power management company with a strong UPS offering (5P, 9PX, 93PM, 9395 series) and UK service network. Direct overlap in modular UPS for data centres and three-phase industrial power protection.
• ABB: Global electrification and automation group with UPS and power protection offerings (e.g., PowerLine DPA, MegaFlex). Competes with the company in industrial, transport, and large data centre bids in the UK.
• Schneider Electric (APC): Through its APC brand, Schneider offers one of the broadest UPS portfolios in the market, from entry-level to multi-megawatt data centre systems. Competes directly with the company in UK data centre, industrial, and enterprise power protection tenders.
• Riello UPS (RPS SpA): The Italian parent manufacturer whose products (Sentinel, Sentryum, Multi Power, Master series) form the core of the company's portfolio. Directly comparable because the UK subsidiary is essentially the local channel for RPS SpA, with shared product roadmap and brand.

Direct peers

• Centiel: Swiss-headquartered UPS specialist focused on three-phase modular UPS for data centres and critical infrastructure. Comparable as a similarly-sized independent UPS specialist with adjacent product positioning and overlapping UK channel partners.
• CyberPower: UPS and power protection brand with strong presence in single-phase and small-business UPS (similar to Sentinel, Vision, iDialog ranges). Direct competitor in the lower-power segments that overlap with the company's entry-level catalogue.
• Socomec: European-headquartered specialist in critical power, including UPS, static transfer switches, and power monitoring. Closely comparable as a smaller-than-ABB/Schneider European UPS specialist competing in the same UK industrial and data centre channels.
• Borri: Italian UPS manufacturer with a comparable product line (online UPS up to 1.6 MVA) and similar target verticals (data centre, industrial, oil & gas, transport). Closely comparable as a European specialist competitor of similar scale to Riello UPS.

Regional players

• Kohler Uninterruptible Power: UK-focused UPS specialist providing single- and three-phase UPS plus maintenance services. Comparable because it competes head-to-head in the UK market with a similar service-heavy, mid-market positioning.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/cps_ups
• YouTubeyoutube.com/channel/UCGn_rxxzK8LfVMsBEKeS_ww/videos
• Facebookfacebook.com/constantpowerservices
• LinkedInlinkedin.com/company/riello-ups-ltd

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds

Investors

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 Constant Power Services