Obelisk Group

What Obelisk Group does

Obelisk Group is an Irish-headquartered professional engineering partner that designs, builds, installs and maintains infrastructure for the telecommunications and renewable energy sectors. Founded in 1996 and headquartered in Cavan, Ireland, the company operates across two service divisions. The telecoms division delivers wireless network deployment (4G/5G), fixed line and fibre infrastructure, tower maintenance, critical telecoms infrastructure, and event-based temporary network coverage for large festivals. The renewables division covers solar PV systems, wind measurement infrastructure (met masts up to 120m and LiDAR units) including a rental offering, and EV charging deployment. The company maintains 14,700 sites and has built 1,704 4G/5G sites since 2019, drawing on a workforce of approximately 200 employees supported by offices in Cavan, Dublin and Whiteley (UK).

Obelisk generates revenue through B2B managed services and project-based engineering contracts secured via direct enterprise field sales and public tendering. Its client base is concentrated among Ireland's three mobile network operators (Vodafone, Three, eir), European tower companies (Vantage Towers, Cellnex), and major renewable energy developers and state-owned entities (SSE Renewables, RWE, Bord na Mona, ESB Telecoms, Irish Coast Guard, OPW, Met Eireann). Long-term contracts such as the five-year Vantage Towers maintenance deal and 24/7 managed maintenance for 3,100 sites under one Irish MNO anchor recurring revenue. Pricing is not publicly disclosed, consistent with bespoke project and tender-based engagements.

The company is a subsidiary of Constructel Visabeira, which acquired Obelisk in April 2022, providing access to additional European and US markets. In June 2023, Obelisk extended its UK footprint by acquiring the Balfour Beatty Telecommunications Division. Reported turnover was €36 million in 2021, with a stated five-year plan to reach €60.2 million by 2026. The company has received Deloitte Ireland's Best Managed Companies recognition for four consecutive years and a Silver EcoVadis sustainability rating, and is pursuing a 50% commercial fleet electrification target within three years.

Name

Obelisk Group

Legal name

Obelisk International Group Holdings Limited

Website

https://obelisk.com

Company type

Private

Founded year

1996

Operating status

Operating

Headcount range

251–500 employees

Short description

Obelisk Group is an Irish-headquartered professional engineering partner, founded in 1996, that designs, builds and maintains telecommunications and renewable energy infrastructure for major mobile network operators, tower companies, and energy developers across Ireland, the UK and select international markets.

Ownership category

akta.pro rank

Product category

Telecommunications and Renewable Energy Infrastructure Services

NAICS

Management, Scientific, and Technical Consulting Services (5416), Electric Power Generation, Transmission and Distribution (2211)

SIC

Services-Engineering Services (8711)

akta.pro primary industry

Pole, Tower & Structure Installation / Replacement (Distribution) (EUAEACAE)

akta.pro secondary industries

Civil & Site Works EPC (Earthworks, Roads, Drainage, Foundations) (EUAEADAA), Wind Balance-of-Plant EPC (Crane Pads, Turbine Foundations, Internal Roads) (EUAEADAI), Underground Distribution (Cable, Duct Bank & Vault) EPC (EUAEACAB)

Keywords

• Telecoms infrastructure services
• Renewable energy solutions
• Wireless network deployment
• Solar PV installation
• Wind measurement services

Headquarters

HQ city

Cavan

HQ country

Ireland

HQ region

Europe

Offices3 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Telecoms Infrastructure Services: Design, build, installation, and maintenance of wireless telecoms infrastructure including 4G and 5G sites, tower works, fibre deployment, and critical infrastructure management for mobile network operators.
2. Renewables Infrastructure Services: Design, installation, and maintenance of solar PV systems, wind measurement equipment (met masts, LiDAR), EV charging infrastructure, and meteorological monitoring solutions.
3. Project-Based Engineering Services: Discrete infrastructure projects including design-build contracts for wind farms, solar installations, telecoms site builds, and event-based telecoms solutions.

Go-to-market motion2 records

Distribution channels2 records

Marketing channels4 records

Core offering

Obelisk Group is a professional engineering partner providing end-to-end telecommunications and renewable energy infrastructure solutions. The company designs, builds, installs, and maintains wireless and fixed-line telecoms networks, solar PV systems, EV charging infrastructure, and wind measurement equipment for enterprise clients. Services span Ireland, the UK, and multiple European markets plus the US, delivered through direct enterprise sales and long-term maintenance contracts.

Product overview

Obelisk Group is a leading professional engineering partner providing innovative telecommunications and renewable energy infrastructure solutions. The company operates two core service divisions: Telecoms (Wireless, Fixed Line) and Renewables (Solar PV, EV Charging, Wind Measurement/WMI, and WMI Rental Packages). Under these divisions, Obelisk delivers project-specific offerings including Critical Telecoms Infrastructure, Wireless Telecoms Infrastructure, Mobile Telecommunication Site Management, and Telecoms Solutions for Festivals and Events. The product portfolio spans design, installation, commissioning, and maintenance services across both sectors, serving clients in Ireland, the UK, and internationally. The company was founded in 1996, employs approximately 200 people, and maintains 14,700+ sites since 2019, with 1,704 4G & 5G sites built since 2019. Obelisk is part of Constructel Visabeira.

Differentiator

Problem solved

Functional benefit

Products and services

• Wireless Telecoms Infrastructure Design, installation and 24/7 first line managed maintenance service on fibre and radio networks, encompassing cellular network infrastructure (4G and 5G) for mobile network operators across Ireland.
• Fixed Line Telecoms Fixed line telecommunications infrastructure solutions including fibre deployment and maintenance services for telecom operators.
• Solar PV Systems Nationwide installation and commissioning of domestic and commercial solar photovoltaic systems, including design, maintenance and meteorological monitoring solutions.
• EV Charging Innovative design and deployment of electric vehicle charging solutions for domestic and commercial projects, including survey, design, build and maintenance services.
• Wind Measurement (WMI) Industry-leading wind monitoring, assessment and solutions including specialized systems and site-specific designs spanning full installation, maintenance, repair and upgrade services for microgeneration and large-scale wind farms.
• Critical Telecoms Infrastructure Survey, design, planning and build of power deployment and fibre infrastructure across greenfield and rooftop sites, including PSDP and PSCS management and drone technology for site surveys.
• Telecoms Solutions for Festivals and Events Temporary mast structures and additional 4G and 5G network coverage for large-scale festivals and events with crowds of up to 250,000.
• Mobile Telecommunication Site Management Management and operation of portfolio of mobile telecommunication sites including design, installation, maintenance and strengthening works.

Quantifiable outcome

• 14,700 sites maintained since 2019
• +5 more outcomes

Named customers19 records

Segments4 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

Twelve partnerships are on record, tiered core, minor and major.

• Balfour Beatty Telecommunications DivisioncoreStrategic or Co-development Partner · 1 June 2023Obelisk acquired the Balfour Beatty Telecommunications Division in June 2023, accelerating its growth in the UK market. This acquisition brought additional infrastructure capabilities and UK client relationships.
• SEAI (Sustainable Energy Authority of Ireland)minorStrategic or Co-development Partner · 1 January 2023Obelisk participated in the SEAI EV Commercial Fleet Trial in 2023, a pilot scheme run by SEAI on behalf of Zero Emission Vehicles Ireland. The trial involved testing battery electric vehicles as part of day-to-day operations, with Obelisk's Transport Manager Deirdre Brady joining a panel discussion at the SEAI Energy Show 2024.
• Constructel VisabeiracoreStrategic or Co-development Partner · 1 April 2022Obelisk was acquired by Constructel Visabeira in April 2022, joining a leading global telecommunications and energy networks engineering group. This acquisition enabled Obelisk's entry into broader international markets including UK, France, Germany, Belgium, Portugal, Spain, Italy, Denmark, Sweden and the US. Constructel Visabeira is a subsidiary of multinational holding company Grupo Visabeira.
• Vantage TowersmajorStrategic or Co-development PartnerFive-year sustainable maintenance contract for tower infrastructure across Ireland. Obelisk delivers ongoing maintenance services ensuring infrastructure meets performance and sustainability standards.
• SSE RenewablesmajorStrategic or Co-development PartnerLong-standing partnership for renewable energy infrastructure solutions including wind measurement services and renewable energy project delivery across Ireland.
• VodafonemajorStrategic or Co-development PartnerMajor telecom client for whom Obelisk provides nationwide wireless infrastructure design, installation, and maintenance services including 24/7 managed maintenance across Ireland.
• Three IrelandmajorStrategic or Co-development PartnerLeading Irish mobile network operator for whom Obelisk completed the design, rollout and maintenance of cellular networks across Ireland. Obelisk's team supporting the 3 Ireland account received the Team of the Year award at the 2025 Company Day.
• Cellnex TelecommajorStrategic or Co-development PartnerEuropean tower company operating across multiple markets; Obelisk provides infrastructure services as part of Cellnex's Irish and UK operations.
• Tallaght University (TU Dublin)minorStrategic or Co-development PartnerObelisk partners with Tallaght University for the Higher Cert in Engineering in Telecommunications and Data Network Engineering (Level 6) apprenticeship programme, combining classroom learning with on-the-job experience for telecommunications engineers.
• eirmajorStrategic or Co-development PartnerMajor Irish telecommunications operator; Obelisk provides fixed line and broader telecoms infrastructure services.
• RWEmajorStrategic or Co-development PartnerGlobal renewable energy company for whom Obelisk delivers infrastructure solutions in the UK and Ireland markets.
• Bord na MonamajorStrategic or Co-development PartnerIrish climate solutions company and state-owned commercial company; Obelisk partners on renewable energy infrastructure projects across Ireland.

Scale indicators8 records

Recent moves7 records

Expansion highlights6 records

Direct peers

• Circet Group: Europe's largest dedicated telecommunications infrastructure services provider, delivering turnkey design, build and maintenance for fixed, mobile and fibre networks. Directly comparable to Obelisk in core telecoms EPC and managed maintenance services across European markets.
• TLI Group: Ireland and UK-headquartered contractor providing telecoms, electrical and overhead line infrastructure services to MNOs, tower operators and utilities. Closely mirrors Obelisk's geographic focus on Ireland/UK and multi-sector infrastructure services model.
• KN Network Services: Irish family-owned contractor with deep heritage in telecoms, electrical and civils infrastructure across Ireland, the UK and globally. Head-to-head competitor for similar MNO and utility infrastructure contracts.
• Kirby Group Engineering: One of Ireland's largest mechanical, electrical and process engineering contractors with growing renewable energy and data-centre infrastructure services. Overlaps with Obelisk on the electrical and renewables infrastructure side.
• McNicholas Construction: UK multi-disciplinary infrastructure services contractor delivering telecoms, utilities, power and renewable energy infrastructure. Direct competitor for similar design-build-maintain contracts with UK and Irish network operators.
• NG Bailey: UK-headquartered engineering and infrastructure services firm with a Telecoms division delivering fibre, mobile and tower services alongside wider MEP work. Comparable service mix targeting similar MNO and enterprise clients.
• Murphy Group: UK construction and infrastructure specialist operating across utilities, telecoms, rail and energy including renewable energy infrastructure. Competes on similar civil and electrical scope within the Irish and UK telecoms/utility sector.
• Mercury Engineering: Irish engineering contractor delivering mechanical, electrical and telecommunications infrastructure projects across Ireland, the UK and Europe. Overlaps with Obelisk on electrical and telecoms infrastructure delivery at similar scale.

Broad incumbents

• Balfour Beatty plc: One of the UK's largest infrastructure groups operating across rail, highways, utilities and power. Divested its Telecommunications Division to Obelisk in 2023, so they overlap on the wider infrastructure contracting and electrical works market rather than directly in telecoms today.
• AtkinsRéalis (formerly Atkins/SNC-Lavalin): Global engineering, design and project management consultancy with significant telecoms and energy infrastructure advisory and asset management work. Comparable in engineering services delivery but at much larger scale and across much broader scope.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/obelisk_group
• LinkedInlinkedin.com/company/obelisk
• Instagraminstagram.com/obeliskbeyondconnection

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles3 records

Funding overview

Funding rounds2 records

Investors2 records

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 Obelisk Group