EU & global entity of Forsyth of Denny

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Historic McNally’s Leyland transport truck
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A family business since 1958

Our story.

From agricultural drainage and railway decommissioning to wind turbine decommissioning, McNally’s has moved with Ireland’s changing infrastructure.

Where it started

Dan McNally started in 1958, in agricultural drainage, then railway decommissioning. The office is still on Dawson Street. McNally’s is the EU and global company in the Forsyth of Denny group.

1958

Agricultural drainage

Dan McNally starts out in agricultural drainage in County Monaghan.

1960s

Railway decommissioning

The company moves into railway decommissioning, with bigger machines and harder logistics.

1972

The first crane

The first crane is bought, and the company moves into crane hire.

1984

Dan McNally Limited

The business is incorporated as Dan McNally Limited.

1996

Heavy cranes and lift engineering

A new generation of management takes the company into heavy cranage and specialist lift engineering.

1999

First wind project

A 400-tonne crane erects 600kW Vestas turbines. It is the beginning of more than 25 years in wind energy.

2001

First crane and installation package

McNally’s offers its first combined crane and installation package to a wind turbine manufacturer.

2005

Integrated wind work

Sister company Windhoist is set up to combine heavy cranage with mechanical and electrical installation, so one contract covers the cranes and the erection crews. Around the same time, the team decommissions eight turbines at Drumlough Hill, Co. Donegal, including site management and civil works.

2008

First cranes in Australia

McNally’s cranes go to work in Australia for the first time, alongside sister company Windhoist, the first in the country to offer both the cranes and the crews to erect turbines (Access Briefing, 2008).

2016

Forsyth of Denny joins the group

The group acquires Forsyth of Denny, the crane hire company based in Denny, Stirlingshire (Vertikal, 2016).

2025–2026

Bellacorick decommissioning

McNally’s cranes take down the last turbines at Bellacorick, Co. Mayo. It was Ireland’s first commercial wind farm and had generated since 1992. The site is redeveloped as Oweninny Wind Farm Phase 3.

2026

Carrigdangan installation

A crane and installation package to install three Nordex Delta4000 turbines at Carrigdangan wind farm, Co. Cork.

Today

Wind decommissioning and heavy lift

McNally’s supports the full wind lifecycle, from installation, major component exchange, facilitating repowering and decommissioning through to end-of-life dismantling and component recycling, with mobile crane capacity up to 700 tonnes.

6,150+

Wind turbines erected globally

More than 6,150 wind turbines erected, from Ireland and the UK to Australia, Morocco and the Falklands.

Machine firsts

Firsts in Ireland and the UK.

Machines and methods McNally’s brought to Ireland and the UK first. Where a trade press report backs a claim it is linked; the rest are the company’s own account and have not been independently verified.

  1. 1998Liebherr LTM 1400Ireland’s biggest crane at the time
  2. 2001Demag TC 3300Ireland’s biggest crane at the time
  3. 2003Favelle FavcoIreland’s first telescopic crawler crane
  4. 2004Liebherr LTM 1500 with Y-guy technologyIreland’s first 500t Liebherr
  5. 2005Demag TC 2800The first in Ireland
  6. 2006Liebherr LTR 1100The first in the British Isles, a 100t telescopic crawler (Vertikal, 2006)
  7. 2007Terex-Demag TC 2800-1Placed the largest precast beams ever installed in Ireland: five 135t, 45m beams on the Limerick Southern Relief Road
  8. 2008Terex-Demag AC 500The first and only new one in the UK and Ireland
  9. 2008Liebherr LTM 11200-9.1The first 1,200t crane in the UK and Ireland, and the first anywhere to work on a wind farm (Cranes & Access, 2011; Cranes & Access, 2008)
  10. 2008Wumag WT 1000 103m platformThe first 103m MEWP in the UK and Ireland, and the world’s tallest at the time (Access Briefing, 2008)
  11. 2010Liebherr LG 1750The first new one in the UK and Ireland
  12. 2010Liebherr LTR 11200The first in the UK, Ireland and Australia, shipped to Australia in 2010 (Cranes & Access, 2011; Vertikal, 2010)
  13. 2014Liebherr LTM 1750The first in Ireland
  14. 2015Crane hoist rope tensioning systemDesigned in house for decommissioning, a world first

Then and now

From low-loaders to cranes.

The low-loaders are how a heavy crane reaches a difficult site.

McNally’s Leyland tractor unit in Monaghan heritage livery
Modern McNally’s heavy crane transport convoy

On site

Past work.

Wind turbine installations, heavy lifts and vessel work from the project archive.

See all work →

From the archive

Read the 2011 Cranes & Access feature.

An eight-page industry article covering McNally’s wind experience, crane strategy and approach to difficult sites. Fleet references in the article are historical.

Download PDF ↓
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