Glennon Brothers

What Glennon Brothers does

Glennon Brothers is a third-generation, family-owned Irish timber processing company founded in 1913 in Longford and now operating across Ireland and the United Kingdom. The company manufactures kiln-dried strength-graded carcassing timber, CLS (Canadian Lumber Standard) for timber frame manufacturing, pallet and packaging material, machined whitewoods, and branded outdoor products (Glendeck decking and Glenfence fencing) treated with Osmose Naturewood and Protim Clearchoice preservatives. Its downstream portfolio also includes engineered timber frame homes and roof trusses via Dempsey Timber Engineering (Ireland) and Alexanders Timber Design (UK), and a renewable energy business (CHP and wood pellets) acquired through Balcas in 2021. The group runs eight production sites with combined sawn timber capacity of approximately 450,000m³ per annum and the largest kiln drying capacity in the British Isles at 220,000m³ per annum; the January 2026 acquisition of Pontrilas Group added a further £120 million in turnover and substantially expanded UK capacity.

The company's production technology centres on capital-intensive European sawmilling equipment — Linck sawlines, Microtec GOLDENEYE X-ray strength graders (first in the UK), USNR lineal graders, and Ledinek planers — supported by FSC Chain of Custody certification, NSAI and BM Trada grading certification, and early ISPM 15 compliance enabling international pallet exports. Revenue is generated through one-time sales of timber products distributed via a regional field sales team across Ireland and Great Britain, through national builders' merchants (B&Q, Heiton Buckley, Chadwicks), specialist retailers, and direct export relationships (notably PBM Import in France). Residual wood streams (chips, sawdust, bark, shavings) are monetised into MDF, biomass, and animal bedding channels, while the Balcas Energy business adds a managed-service renewable energy component.

Name

Glennon Brothers

Legal name

Glennon Brothers Timber Ltd.

Website

https://glennonbrothers.ie

Company type

Private

Founded year

1913

Operating status

Operating

Headcount range

251–500 employees

Short description

Glennon Brothers is a third-generation, family-owned Irish timber processor founded in 1913 that manufactures kiln-dried structural timber, fencing, decking, pallets, and engineered timber frame homes across eight sites in Ireland and the UK, distributing through builders' merchants including B&Q, Heiton Buckley, and Chadwicks.

Ownership category

akta.pro rank

Product category

Sawn Timber & Building Materials Manufacturing

NAICS

Sawmills (321113), Cut Stock, Resawing Lumber, and Planing (321912)

SIC

Sawmills & Planting Mills, General (2421), Lumber & Wood Products (No Furniture) (2400)

akta.pro primary industry

Softwood Lumber Sawmills (IMAMABAA)

akta.pro secondary industries

Wood Remanufacturing (Mouldings, Millwork Blanks, Cut Stock) (IMAMABAI), Planing Mills & Lumber Surfacing (IMAMABAE), Mass Timber Panels & Components (DLT, NLT, Hybrid Panels) (IMAMACAG)

Keywords

• Sawn timber products
• Timber frame construction
• Fencing and decking
• Engineered roof trusses
• Wood preservation services

Headquarters

HQ city

Longford

HQ country

Ireland

HQ region

Europe

Offices8 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Sawn timber products: Core revenue from manufacturing and selling sawn softwood timber products including kiln dried strength graded carcassing, pallet and packaging material, CLS (Canadian Lumber Standard) for timber frame, and machined whitewoods for construction and garden shed industries.
2. Fencing products: Glenfence brand fencing products including closed panels, ribbed picket panels, sleepers, loose boards, and post & rail. All products pressure treated using Osmose Naturewood Preservative.
3. Decking products: Glendeck timber decking and accessories for outdoor use, supplied through builders' merchants and specialist retailers.
4. Timber frame homes and roof trusses: Design, manufacture and supply of timber frame homes and engineered roof trusses through Dempsey Timber Engineering (Ireland) and Alexanders Timber Design (UK).
5. Residual products: Wood chips, sawdust, bark, and shavings sold to various end-use applications including MDF board manufacture, biomass energy (CHP plants), and animal bedding.
6. Combined heat and power (CHP) and wood pellets: Balcas Energy operates renewable energy plants at Enniskillen and Invergordon, Scotland, incorporating CHP and wood pellet manufacturing.

Go-to-market motion2 records

Distribution channels5 records

Marketing channels5 records

Core offering

Glennon Brothers is a timber processing and sawmilling company that manufactures kiln-dried strength-graded carcassing timber, pallet and packaging material, CLS (Canadian Lumber Standard) for timber frame manufacturing, machined whitewoods, outdoor decking (Glendeck), fencing (Glenfence), and designs/supplies timber frame homes and engineered roof trusses. The company also sells residual by-products (wood chips, sawdust, bark, shavings) and operates a renewable energy business (Balcas Energy) producing CHP and wood pellets. Operations span Ireland and the UK with a total sawn timber capacity of 450,000m³ per annum.

Product overview

Glennon Brothers is a timber processing company offering a comprehensive portfolio of timber products and related services. The core product portfolio includes kiln dried strength graded carcassing timber, pallet and packaging material, CLS (Canadian Lumber Standard) for timber frame manufacturing, machined whitewoods, Glendeck decking and accessories, and Glenfence fencing products. The company also designs, manufactures, and supplies timber frame homes and engineered roof trusses through acquired brands Dempsey Timber Engineering (DTE Manufacturing) in Ireland and Alexanders Timber Design in the UK. Additional acquired brands include Balcas Timber (sawmilling) and Balcas Energy (renewable energy/CHP). The company offers timber treatment services using Osmose Naturewood and Protim Clearchoice preservatives. Residual by-products including woodchip, sawdust, bark, and shavings are sold to various end-use applications.

Differentiator

Problem solved

Functional benefit

Products and services

• Kiln Dried Strength Graded Carcassing Timber
• Pallet & Packaging Material
• CLS (Canadian Lumber Standard)
• Machined Whitewoods
• Glendeck Decking
• Glenfence Fencing
• Timber Frame Homes
• Engineered Roof Trusses
• Balcas Energy (CHP and Wood Pellets)
• Residual Products
• Glenpine Decorative Pine Flooring

Quantifiable outcome

• Speed of construction up to 50% faster than conventional block and mortar construction
• +2 more outcomes

Named customers4 records

Segments5 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

16 partnerships are on record, tiered core and minor.

• Pontrilas GroupcoreStrategic or Co-development Partner · 27 January 2026Acquisition completed January 27, 2026. UK timber-processing business with £120m turnover. Deal increases Glennon Brothers' production capacity and strengthens ability to supply sawn softwood across UK and Ireland.
• BalcascoreStrategic or Co-development Partner · 29 October 2021Acquisition completed October 2021 from parent company SHV Energy. Includes sawmilling operation in Enniskillen producing fencing, landscaping, agricultural, construction and pallet products, plus Balcas Energy with CHP and wood pellet manufacturing in Enniskillen and Invergordon.
• Alexanders Timber DesigncoreStrategic or Co-development Partner · 1 January 2008Leading provider of quality timber frames and engineered roof trusses in the UK, supplying both timber frame homes and commercial properties. Located in Troon, Scotland.
• Adam Wilsons & Sons (now Glennon Brothers UK Ltd)coreStrategic or Co-development Partner · 1 January 2008Fifth generation family business located in Troon port. One of the largest sawmills in the UK, employing over 100 people. Specialises in kiln dried carcassing, fencing, pallet and packaging material.
• Dempsey Timber Engineering (DTE)coreStrategic or Co-development Partner · 1 January 2007Specialises in supply and installation of Timber Frame Homes and Engineered Roof Trusses to construction industry and one-off self builders. Located in Arklow, County Wicklow.
• Windymains TimbercoreStrategic or Co-development Partner · 1 January 2005Specialist fencing and treated timber mill located in Humbie, near Edinburgh. Annual production capacity of 50,000m3.
• Woodfab Fermoy (from Smurfit Group)coreStrategic or Co-development Partner · 1 January 1998Acquired from Smurfit Group in 1998. €25-27 million capital development transformed the loss-making plant into state-of-the-art timber processing operation. Located on 60-acre site in Fermoy, County Cork.
• Forest Stewardship Council (FSC)coreOthersFSC Chain of Custody Certification provides guarantee about production of FSC certified products. Glennon Brothers Chain of Custody code NC-COC-014377, Controlled Wood code NC-CW-014377, trademark licence code FSC-C006033.
• Control UnioncoreOthersVerification body for Chain of Custody certification at Windymains and Troon sites. Multi-site certification with code CU-COC-856459 and trademark licence FSC-C021680.
• NEPConcoreOthersNon-profit international organisation focused on sustainable use of natural resources. Certified Glennon Brothers Chain of Custody system.
• Osmose InccoreTechnology or IntegrationUS-based company established in 1932 providing Osmose Naturewood preservative system based on copper and organic co-biocide (Alkaline Copper Quaternary). Used for pressure treatment of Glennon Brothers fencing and decking products.
• Protim (Osmose Group)coreTechnology or IntegrationProtim Clearchoice preservation systems for wood pressure-treated for construction projects including roof timbers, timber framing, internal and external joinery.
• CoilltecoreOthersState forestry company supplying approximately 80% of logs to Irish sawmills. Paddy Glennon was member of steering group that led to Coillte's formation and served as non-executive director.
• National Standards Authority of Ireland (NSAI)coreOthersStandards body providing grading certification for Glennon Brothers products in Ireland. DTE Manufacturing approved and monitored by NSAI.
• BM TradacoreOthersUK certification body responsible for grading certification. Alexanders Timber Design members of Q Mark Plus scheme accredited by BM Trada.
• Enterprise IrelandminorGTM or Marketing PartnerGovernment trade body that supported Glennon Brothers participation in trade missions, including mission to France that resulted in €1.5 million deal and €10 million sales milestone.

Scale indicators15 records

Recent moves6 records

Expansion highlights6 records

Broad incumbents

• UPM-Kymmene: UPM is a Finnish forest products company with sawmilling operations across Europe and significant UK market presence. It is a broad incumbent peer with overlapping softwood timber and engineered wood offerings but operates across forestry, pulp, paper, biofuels, and biomaterials at much larger scale.
• Binderholz: Binderholz is an Austrian family-owned timber company operating sawmills, CLT/mass timber production, and biomass energy across Europe. It is a broad incumbent peer competing with Glennon Brothers in softwood lumber and engineered timber while also serving the broader European construction market.
• Stora Enso: Stora Enso is a Finnish-Swedish global forest products giant with sawmilling, engineered wood (CLT), and renewable packaging operations across Europe. It is a broad incumbent competing with Glennon Brothers in CLT/mass timber and softwood supply, but operates at vastly larger scale with a more diversified product portfolio.
• Mayr-Melnhof Holz: Mayr-Melnhof Holz is an Austrian sawmilling and engineered wood (CLT, glulam) group with operations across Europe. It is a broad incumbent peer with comparable softwood sawmilling and value-added engineered timber products, supplying similar construction and prefabrication markets.

Direct peers

• James Jones & Sons: James Jones & Sons is a UK-based sawmilling and timber products company producing sawn softwood, pallet timber, and engineered wood products. It is a direct competitor with overlapping product portfolio, distribution through builders' merchants, and shared exposure to UK construction and pallet markets.
• BSW Timber: BSW Timber is the UK's largest integrated softwood sawmilling group, operating multiple sawmills across the UK. It is a direct peer with comparable product mix (sawn timber, fencing, landscaping), customer base (builders' merchants), and end markets (construction, pallet, fencing), making it the most directly comparable competitor to Glennon Brothers in the British Isles.
• VIDA AB: VIDA AB is one of Sweden's largest softwood sawmill groups, exporting significant volumes to the UK and Irish markets. It competes directly with Glennon Brothers in British Isles supply for construction timber and competes with Irish/UK sawmillers in the European export market from its Swedish cost base.

Emerging players

• KLH Massivholz: KLH Massivholz is an Austrian manufacturer of cross-laminated timber (CLT) panels used in mass timber construction. It is an emerging player focused on CLT — a technology adjacency to Glennon Brothers' timber frame and engineered roof truss businesses (Dempsey/Alexanders).
• Wiehag: Wiehag is an Austrian engineered timber specialist focusing on glulam and complex timber structures (stadiums, bridges, commercial buildings). It is an emerging player in mass timber/CLT that intersects with Glennon Brothers' engineered wood ambitions via Dempsey Timber Engineering and Alexanders Timber Design.

Others

• Coillte: Coillte is the Irish state forestry company supplying approximately 80% of round timber to Irish sawmills. It is the most important raw material supplier and strategic counterparty for Glennon Brothers; Paddy Glennon helped lead Coillte's formation and Mike Glennon served as a non-executive director, making this a critical upstream ecosystem relationship rather than a competitor.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/GlennonBrothers

Compliance9 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

Subsidiaries6 records

Funding overview

Funding rounds

Investors

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

M&A1 record

Investments

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

Frequently asked questions about Glennon Brothers