What Cyrisea does

Cyrisea is a French multi-brand Building Management System (GTB / Gestion Technique du Bâtiment) integrator founded in 2008 and headquartered in Carquefou near Nantes. The company specializes in the development and integration of digital systems for the energy and environmental performance of buildings, supplying hardware (PLCs, automation controllers, regulation cabinets), conducting technical studies, managing installation works, and providing commissioning, parametrization, and user training. Its core technology stack centers on GTB integration complemented by a Building Operating System (BOS) layer that aggregates heterogeneous data from GTB, video surveillance, access control, and IoT sensors into a unified digital system, a proprietary Odete SmartDiag application for energy diagnostics, and a Smart Monitoring module built on the Energisme platform. The company also assists clients with CEE (Certificats d'Économies d'Énergie) financing for GTB deployments.

Cyrisea serves six vertical segments — housing/social housing, private tertiary, public tertiary, industry, retail, and healthcare — through a direct enterprise field sales motion and participation in public procurement. Named customers include Intermarché (60 supermarket multi-site rollout), Préfecture de Police de Paris (energy diagnostics on 200 police stations via Odete SmartDiag), CDC Habitat, TRUFFAUT, Ville de la Baule, and Nantes Université (energy monitoring across 131 buildings / 430,000 m²). Revenue is generated primarily through professional services for GTB integration projects on multi-year contracts, supplemented by recurring smart monitoring subscriptions and CEE financing advisory services. Pricing is quote-based and tailored to client needs rather than publicly disclosed.

Since 2019, Cyrisea has operated as a subsidiary of ALTYN Group, an independent French group of 7 companies covering the entire building value chain (consulting, engineering, services, and construction for energy, environmental, and digital transition). In 2024, Cyrisea joined ALTYN's Société à Mission status under the French PACTE law and holds LUCIE 26000 ESG certification (score 864/1000). Cyrisea operates from three offices in Carquefou, Paris, and Lyon, with more than 30 experts in Intelligent Energy Management Systems.

Name

Cyrisea

Legal name

CYRISEA

Website

https://cyrisea.com

Company type

Private

Founded year

2008

Operating status

Operating

Headcount range

11–50 employees

Short description

Cyrisea is a French multi-brand Building Management System (GTB) integrator founded in 2008, deploying energy and environmental performance solutions across housing, public/private tertiary, retail, industry, and healthcare. It operates as a subsidiary of ALTYN Group with 30+ experts across three French offices.

Ownership category

akta.pro rank

Product category

Building Management Systems Integration

NAICS

Computer Systems Design and Related Services (54151), Computer Systems Design Services (541512)

SIC

Services-Engineering, Accounting, Research, Management (8700)

akta.pro primary industry

Custom Application Development (Web/Mobile/Desktop) (BPAEAFAA)

akta.pro secondary industry

iBPMS (Intelligent BPM Suites) & Process Automation Suites (HDAEAHAG)

Keywords

• Building management systems
• GTB integration services
• Energy performance monitoring
• Smart building solutions
• Building automation integration

Headquarters

HQ city

Carquefou

HQ country

France

HQ region

Europe

Offices3 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. GTB Integration Services: CYRISEA provides complete GTB (Building Management System) integration services including system design, equipment supply, installation, commissioning, and user training. Services are tailored to client needs across multiple sectors including housing, tertiary, industry, retail, and healthcare.
2. Multi-site GTB Deployment: Specialized deployment of GTB systems across multiple sites, providing standardized, reliable, and industrial approach adapted to commercial site operational constraints. Collaboration with local electrical partner networks.
3. Smart Monitoring and Energy Management: Centralized data collection, visualization, and analysis of technical and energy data from buildings. Real-time monitoring tools for consumption tracking, deviation identification, and continuous energy performance optimization.

Pricing tiers

Go-to-market motion1 record

Distribution channels3 records

Marketing channels6 records

Core offering

Cyrisea is a multi-brand GTB (Gestion Technique du Bâtiment / Building Management System) integrator that supplies, installs, commissions, and trains users on building automation systems. It provides energy monitoring modules and proprietary diagnostics applications (Odete SmartDiag) and integrates Building Operating System (BOS) platforms, serving housing, private/public tertiary, retail, industry, and healthcare clients primarily in France.

Product overview

CYRISEA is a multi-brand GTB (Building Management System) integrator specializing in digital systems for building energy and environmental performance. Its core offering is GTB integration — encompassing hardware supply (PLCs, controllers, regulation cabinets), technical studies, installation management, commissioning, parametrization, and user training — deployed across single and multi-site portfolios for clients in housing, private/public tertiaries, retail, healthcare, and industry. The portfolio includes a Smart Monitoring module built on the Energisme platform for centralized energy data visualization and analytics; Odete SmartDiag, a proprietary application for building energy diagnostics and portfolio RT-OAD enrichment; and BOS (Building Operating System) integration services for open, unified building data aggregation. CYRISEA also provides CEE financing assistance to help clients fund GTB deployments. The company operates as part of the ALTYN group.

Differentiator

Problem solved

Functional benefit

Products and services

• GTB Integration (Multi-brand Building Management System Integration) Multi-brand GTB (Gestion Technique du Bâtiment / Building Management System) integration service covering hardware supply (PLCs, automation controllers, regulation cabinets), technical studies, installation works management, commissioning, parametrization, and user training. Delivered to housing, private/public tertiary, retail, healthcare, and industry clients.
• GTB Multisite Deployment Standardized deployment of GTB systems across multi-site portfolios, enabling structured management of technical equipment across geographically distributed buildings. Delivered in collaboration with local electrical partner networks for industrial-scale rollouts.
• Smart Monitoring Module Energy monitoring and data visualization module enabling automated collection of energy consumption data across building portfolios. Provides real-time dashboards, anomaly detection for energy savings opportunities, and data sharing with stakeholders. Built on the Energisme platform.
• Odete SmartDiag Application Proprietary application developed by Cyrisea for conducting energy diagnostics on building portfolios. Enables efficient field characterization of existing buildings and identification of energy potential, and supports automated enrichment of the national RT-OAD information system.
• BOS (Building Operating System) Integration Integration of BOS (Building Operating System) platforms - open, scalable software layers that aggregate and translate heterogeneous building data from GTB, video surveillance, access control, and IoT sensors into a unified digital system, enabling smarter analytics and building optimization.
• GTB Pilotage (GTB Control and Supervision) GTB monitoring and control services enabling building operators to remotely manage heating, lighting, access control, and other technical systems, with supervisory and hypervision capabilities for centralized building oversight.
• CEE Financing Assistance Support service for clients to identify and secure CEE (Certificats d'Économies d'Énergie) financing for GTB installations, including assistance with eligibility assessments, application dossiers, and ongoing CEE compliance.

Named customers7 records

Segments6 records

Ideal customer profiles6 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration7 records

Feature3 records

Partnerships

Five partnerships are on record, tiered core and minor.

• EnergismecoreStrategic or Co-development Partner · 1 January 2021Partnership with Energisme for energy monitoring platform deployment. CYRISEA ensures integration within organizations while Energisme provides the software platform and data collection capabilities. Combined expertise enables comprehensive energy performance monitoring solutions.
• WITcoreTechnology or Integration · 1 January 2019Technology partner providing GTB installations for the Ville de la Baule project, supplying intelligent building management solutions.
• CABELEFminorImplementation/ SI/ Consulting Partner · 1 January 2019Electrical partner company working on the Ville de la Baule GTB deployment project.
• Volt ElectricitéminorImplementation/ SI/ Consulting Partner · 1 January 2019Electrical partner company working on the Ville de la Baule GTB deployment project.
• ALTYN GroupcoreOthers · 1 January 2019CYRISEA is part of ALTYN Group, an independent company engaged in consulting, engineering, services, and construction related to energy, environmental, and digital transition. ALTYN comprises 7 companies covering the entire building value chain.

Scale indicators10 records

Recent moves7 records

Expansion highlights6 records

Broad incumbents

• SPIE France: European multi-technical services group with significant French building services operations including BMS integration. Comparable as a broad incumbent serving overlapping French enterprise and public-sector customers.
• Schneider Electric (EcoStruxure): Global leader in energy management and automation with EcoStruxure Building platform. Comparable as a broad incumbent whose BMS products are integrated by Cyrisea and whose French service network competes for similar projects.
• Honeywell Building Technologies: Global BMS and building automation vendor with French operations. Comparable as a broad incumbent offering overlapping BMS and energy management capabilities, often through certified integrator networks similar to Cyrisea.
• Siemens Smart Infrastructure: Major global vendor of building automation and energy management systems. Comparable as a broad incumbent competing for large-scale BMS tenders, with Cyrisea acting as a multi-brand alternative to single-vendor Siemens deployments.
• ENGIE Solutions: Major French energy services provider offering building management, energy efficiency, and smart building solutions. Comparable as a broad incumbent in the same French B2B building energy management space, with much larger scale and broader portfolio.

Emerging players

• Distech Controls: Independent BMS and building automation vendor offering open integration platforms. Comparable as an emerging player in the multi-brand BMS space where Cyrisea acts as integrator, addressing similar mid-market French and European building portfolios.
• WIT (Wonderware / Schneider Electric partner network): French GTB integrator providing building management hardware and installations. Comparable as a competing regional multi-brand integrator with similar target customers in housing, tertiary, and public sector.

Direct peers

• Deepki: French SaaS provider of energy and ESG data management for real estate portfolios. Directly comparable to Cyrisea as both serve French building owners with energy performance optimization, though Deepki is software-first while Cyrisea is integration-led.
• Energisme: French energy data management platform serving building and multi-site portfolios. Comparable as both operate in French building energy monitoring and partner with system integrators like Cyrisea to deliver combined hardware-plus-software solutions.

Regional players

• ALTEREA: Sister company within ALTYN Group focused on energy and environmental consulting for buildings. Comparable as a sibling group entity serving the same French building performance market, with potential cross-sell motion with Cyrisea.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights6 records

Customer concentration

• YouTubeyoutube.com/user/CYRISEA44
• LinkedInlinkedin.com/company/cyrisea
• Xx.com/CYRISEANantes

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles4 records

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 Cyrisea