ISG Ltd
Formerly | Interior Services Group |
---|---|
Company type | Subsidiary |
LSE: ISG | |
Industry | fit-out, construction, engineering services |
Founded | 1989 |
Headquarters | , England |
Area served | Europe, Middle East, Asia |
Key people | Zoe Price (CEO) |
Revenue | £2,190 million (2022)[1] |
Number of employees | 2,982 (2021)[2] |
Parent | Cathexis |
Website | isgltd.com |
ISG Ltd (formerly Interior Services Group) is a privately-owned, London-based construction company that employed around 3,000 people, mainly in the UK, mainland Europe and the Middle East. In terms of turnover, at one point it was the sixth biggest contractor in the UK.
It was founded in 1989 as Stanhope Interiors; it was renamed Interior plc following a management buyout during 1995. Two years later, the business, which was then trading as Interior Services Group, was floated on the Alternative Investment Market of the London Stock Exchange. It expanded rapidly during the late 1990s and early 2000s, branching into construction management and facilities management. During the mid 2000s, the firm opted to reduce its presence in some markets, such as France and Germany, while embarking on an spree of acquisitions, including Propencity, Commtech Asia, and Pearce Group.
Following the start of the Great Recession in the late 2000s, both orders and profits at the company dipped sharply. In response, ISG sought out new business on the still-growing international market. During March 2016, ISG was taken private by the US-based firm Cathexis (the investment vehicle of Texan billionaire William Harrison). During the early 2020s, the company's fiscal condition was impacted by the COVID-19 pandemic. In September 2024, following months of concerns about its finances and a stalled sale of the group, eight ISG businesses entered voluntary administration; the situation has been called the biggest collapse in Britain's construction sector since Carillion in 2018. At the time of its collapse, ISG was working on 69 UK public sector projects worth at least £1.84bn, and owed its supply chain over £700m. Around 2,200 ISG UK employees were immediately made redundant.
History
[edit]ISG originated as Stanhope Interiors, which was founded in 1989 by David King.[3][4] During 1995, King led a management buyout of the firm from the indebted Stanhope in 1995, when it was renamed Interior plc.[5][6]
During early 1998, Interior PLC opted to move into construction management via the launch of a new subsidiary.[7] Around this time, the firm experienced a period of rapid growth.[8][9]
In 1997, the business, which was then trading as Interior Services Group, was floated on the Alternative Investment Market of the London Stock Exchange.[10] By this time, much of the firm's work involved kitting out offices across the City of London.[11] During 2003, it opted to reduce its presence in the poorly performing economies of France and Germany.[12] One year later, David King became Interior Services Group's chief executive while Roy Dantzic was appointed its chairman; other changes around this time included the sale of the firm's facilities management division to Erinaceous for £10 million.[13][14]
During 2005, Interior Services Group paid £12.5 million in exchange for the social housing specialist Propencity.[15] One year later, it also bought the facilities management firm ISG Asia for £4.6 million.[16] In 2007, the firm acquired the regional contractor Pearce Group in a deal that was potentially valued at around £20 million; this purchase expanded Interior Services Group's regional coverage, which had traditionally centred around the southern, eastern and northern regions into the west of England and South Wales, as well as expanding its presence in the affordable housing and student accommodation sectors.[17] That same year, it also purchased the fit-out specialist Cathedral Contracts in exchange for £11.8 million,[18] and technical consultancy firm Commtech Asia for £1.2 million.[19]
During the late 2000s, the company's profits and order book both dipped sharply; this was mostly attributed to the wider economic downturn known as the Great Recession.[20][21] In September 2011, Interior Services Group reported a record high in terms of revenue while profits for its struggling south west construction division had roughly halved.[22] During the early 2010s, the firm's then-chief executive David Lawther responded to the decline by reorienting the company towards the still-growing international market.[23][24] In April 2013, the firm officially changed its name to ISG plc.[25][26] That same year, its construction arm underwent restructuring, which involved the streamlining of its eastern construction division while retail activity was placed under a single management team.[27]
In March 2016, ISG was taken private by the US-based firm Cathexis (the investment vehicle of Texan billionaire William Harrison),[28] previously a substantial shareholder, in a £85m takeover.[29][30][31] At that time, the renumeration of ISG's highest paid director, David Cossell, tripled to £3m.[32]
In May 2021, ISG reported its results for 2020, affected by the COVID-19 pandemic. Revenue was down 23% to £2.0bn (2019: £2.6bn); underlying EBITDA for the year was £37.6m (2019: £63.3m).[28] Fit-out was ISG's biggest source of revenue (£1,042.3m in 2020), followed by construction (£690.8m) and engineering services (£293.3m).[33]
In the year to December 2021, ISG reported revenues of £2.263bn, still not back to its pre-pandemic peak, while pre-tax profits increased to £18.9m, from £8.9m a year earlier;[34] fit-out remained ISG's largest service line, the company had 3,001 employees and derived £1.8bn of its revenues from the UK.[2] In early 2022, ISG acquired a majority shareholding in ESS Modular, selling it later that year to Cathexis.[35] In 2022, ISG revenues slipped to £2.19bn, while pre-tax profit was down 38% to £11.5m.[1] ISG's order book was adversely affected by the August 2022 suspension of the Britishvolt gigafactory in Blyth, Northumberland, and delays to a film studio project in Hertfordshire.[36][37][38] In November 2023, ISG CEO Matt Blowers and other senior staff held urgent meetings with stakeholders to reassure them about the financial status of the group.[39][40]
Appointed in 2022, Blowers left ISG as the business underwent a 'fundamental reset' in February 2024,[41] being replaced as CEO by Zoe Price.[1] There were also changes affecting the company secretary, vice-chair and chief financial officer roles;[42] in the last five years, ISG's highest-paid executive had been paid over £18m.[32] In July 2024, ISG finances incurred a £14m hit after a key supplier went into liquidation.[43]
Also in July 2024, ISG staff and suppliers were informed that the company would be sold by Cathexis in the very near future, with the sale including a significant investment to recapitalise the business and support a return to normal trading.[44] Staff and suppliers had become concerned about the state of the company's finances in late 2023.[45] The prospective buyer was reported to be a UK-registered holding company called Antipodean Holdings with two equal shareholders: South African Andre Redinger and Australian James Overton.[46]
Administration
[edit]No further progress on the sale was announced. Late on Thursday 19 September 2024, six ISG Ltd subsidiaries – ISG Construction, ISG Engineering Services, ISG Retail, ISG Jackson, ISG UK Retail and ISG Central Services – were reported to have applied to go into administration.[47][48][49] ISG Fit Out, which accounted for around £500m of ISG revenue and was profitable, was not included in the initial application,[50] but further applications followed on 20 September 2024, including ISG Fit Out and ISG Interior Services Group[51] (on 24 September, Cathexis-owned ESS Modular and subsidiary Spatial Initiative also went into administration, with the loss of 100 jobs,[35][52] though their insolvency was unrelated to ISG's collapse).[53] ISG's failure was described as UK construction's biggest collapse since Carillion in 2018.[49][54]
According to Construction News, some site workers were told that the firm – ranked by turnover as the sixth biggest contractor in the UK[55] – had gone under, amid rumours that it had been struggling to pay subcontractors. One supplier had filed a winding-up petition against ISG Engineering Services;[47] other suppliers facing huge debts criticised ISG for "stringing them along" for months.[56]
In a late night email to staff on 19 September, CEO Zoe Price apologised for the news leaking out ahead of a planned announcement on Monday 23 September 2024. She explained ISG's problems stemmed from legacy issues relating to large loss-making contracts secured between 2018 and 2020, which, as a result of the COVID-19 pandemic, had a significant effect on liquidity. In the circumstances, "it was not possible to conclude a sale, as the purchaser could not satisfy the funding needed to recapitalise the business"; Cathexis had also looked unsuccessfully at refinancing the company, and selling individual businesses had not been practicable in the timescale, leaving "no option but to file for administration".[57] Andre Redinger of Antipodean Holdings disputed Price's position on the sale. A "fair deal" had been on the table, he said; Antipodean had a robust turnaround plan which it believed could save jobs and return ISG to growth and profitability, but ISG suddenly stopped communicating on 12 September.[58][59] Antipodean said it had also identified a senior industry figure to be ISG's new chairman.[60]
Ernst & Young's appointment as administrators was confirmed on 20 September 2024. It confirmed that most of the 2,400 people employed by ISG in the UK were being made redundant immediately, with 200 retained to assist the administrators.[61][62] Regarding the failed sale to Antipodean Holdings, a joint EY/ISG statement said: "the potential purchaser could not, despite repeated requests of them to do so, adequately demonstrate that they had the funding needed to recapitalise the business and keep it solvent."[62] Redinger defended Antipodean's approach saying ISG's liabilities were "three or four times" his first offer, hence the lower bid;[63] the initial bid was based on an assumed deficit of £200m, but the figure jumped to over £500m, with rival firms suggesting the total deficit could be over £800m.[64]
Because of ISG's extensive involvement in ongoing public sector projects, UK government officials were reported to be monitoring the situation and appointing advisors to implement "detailed contingency plans";[54][65][66] on 24 September 2024 the Insolvency Service set up information pages for employees and creditors.[67] ISG was working on 69 live public sector projects worth at least £1.84bn, including schools, police stations and prisons; it had 22 ongoing Ministry of Justice projects (including a £300m extension of HM Prison Spring Hill in Buckinghamshire, work at neighbouring HM Prison Grendon, and upgrades for HM Prison Guys Marsh in Dorset and HM Prison Liverpool)[68] plus work for the Department for Work and Pensions,[61] a £518m Ministry of Defence contract,[69] and £190m of contracts for the Department for Education.[70]
At the time of the company's collapse, ongoing ISG schemes included the £170m fit-out of Google's London headquarters at King's Cross (due for completion in late 2025),[71] conversion of Regents Quarter (also in King's Cross, London) into a life sciences campus,[72] a £44m conversion of a former IKEA store in Coventry into an arts and culture centre,[73] various school projects, including the £108m Fairwater Campus project in Cardiff,[74] Hempland primary school in York[75] and two schools in Bishop's Stortford, Essex,[76] a sports centre in Clayton-le-Moors, Lancashire,[77] three data centres (total value £500m) in southern England, and a £200m biotechnology centre in Billingham, Cleveland.[70] ISG clients were told to move quickly to find replacement contractors, or risk their projects being delayed for months,[78] though some firms were cautious about taking on ISG contracts ("You don't know what liabilities you're going to find," one firm said).[79]
On 8 October 2024, administrator EY told subcontractors and suppliers there were insufficient funds available to pay ISG creditors.[80] On 21 October, EY filed a report showing ISG suppliers to seven ISG businesses (excluding ISG Fit Out) had made over £180m in claims for unpaid bills - a figure which was likely to rise.[81] Former ISG employees were owed over £72.3m while HMRC was owed £54.4m by seven of the eight ISG businesses.[82] ISG Fit Out owed a further £111m to suppliers, with one electrical contractor owed over £20m.[83] That electrical contractor, Phoenix ME, told its suppliers that they would not be paid because Phoenix had not been paid by ISG.[84]
On 25 October 2024, Seventynine Lighting, a Gloucestershire-based ISG lighting subcontractor, went into administration, with 30 staff being made redundant, after ISG's collapse left an "insurmountable" bad debt of around £2m.[85]
Industry reaction
[edit]As news of ISG's collapse broke, the Construction Leadership Council called a meeting of key construction trade bodies, education and skills providers and the Department for Business and Trade to discuss the industry's response;[69] it urged contractors to pay subcontractors promptly with ISG's collapse likely to wreak havoc down supply chains[86] (ISG was estimated to owe its supply chain over £700m).[87] Contractor Balfour Beatty contacted its suppliers to ascertain the impact of ISG's failure, potentially so it could speed up payments.[88]
A Build UK and CITB working group was established to support ISG apprentices and graduates;[69] Build UK CEO Suzannah Nichol said ISG's collapse was "devastating" for the sector and could lead to other firms going under.[89] David Frise, CEO of the Building Engineering Services Association, said "the lessons of Carillion have not been learned", adding "ISG needs to be construction's last major financial collapse that threatens entire supply chains, and the government must help us put a more robust and fit-for-purpose industry in place."[90]
In October 2024, former ISG staff called for an investigation of the company's owners and directors saying problems were emerging nearly two years previously.[91]
Operations
[edit]ISG employed around 3,000 people, mainly in Europe and the Middle East; it has Europe offices in the UK, Germany, Iberia (Spain and Portugal), Luxembourg and Switzerland, and two offices in the UAE.[92]
Notable projects
[edit]- Renovation of Royal Festival Hall, London (2007)[93]
- Fit-out of St Pancras International railway station, London (2008)[94]
- Renovation of Zayed Sports City Stadium, Abu Dhabi, United Arab Emirates (2009)[95]
- Lee Valley VeloPark, London (2011)[96][97]
- Humber Gateway Wind Farm visitor centre (2013)[98]
- Bush House, London (2013).[99]
- Seevic College (2013–14), notable for a legal ruling on the interim payment provisions in Part 8 of the Local Democracy, Economic Development and Construction Act 2009[100]
- Royal Mint visitor centre, Llantrisant (2016)[101]
- Wigan Town Hall restoration (2016)[102]
- BBC Cymru Wales New Broadcasting House, Cardiff (2019)[103]
- Waterloo International redevelopment, London (ongoing in 2021)[104]
- Lord's cricket ground, London: redevelopment of Compton and Edrich stands (2019–2021)[105]
- Cardiff Bus Interchange (due to complete in 2023,[106] opened in June 2024)[107]
- New facility for UCL Queen Square Institute of Neurology and Institute of Dementia Research (due to complete in 2024).[108]
- Britishvolt gigafactory, in Blyth, Northumberland (construction started in September 2021[109] and was suspended in August 2022,[110] after which Britishvolt went into administration)[a]
- A £32.7m restoration and redevelopment of Birmingham's Moseley Road Baths[112]
Notes
[edit]References
[edit]- ^ a b c Rogers, Dave (9 February 2024). "ISG chief executive goes". Building. Retrieved 9 February 2024.
- ^ a b "ISG Annual Report 2021" (PDF). ISG. Retrieved 21 February 2023.
- ^ "Directors' Deals: King sized sale as ISG founder dumps a third of his stake". The Times. 30 October 2005. Retrieved 17 May 2021.
- ^ "What goes on inside the head of Interior?". constructionnews.co.uk. 15 July 1999.
- ^ "What goes on inside the head of Interior?". Construction News. 15 July 1999. Retrieved 21 February 2023.
The fit-out arm of developer Stanhope has gone from strength to strength under his leadership, expanding after a management buyout in 1995.
- ^ Fishlock, Bill (12 January 1995). "Stanhope is set for rebirth". constructionnews.co.uk.
- ^ Morby, Aaron (8 January 1998). "Fit-out contractor mounts assault on construction management market with launch of new company Interior's outside move". constructionnews.co.uk.
- ^ "Interior in demand". constructionnews.co.uk. 9 March 2000.
- ^ Cronin, Sean (21 September 2000). "Bullish ISG gears up for future expansion". constructionnews.co.uk.
- ^ "Float nets Interior fit-out chiefs £3.3m". constructionnews.co.uk. 2 July 1998.
- ^ "Archive: INTERIOR SERVICES (ISG)". investorschronicle.co.uk. 23 January 2003.
- ^ "ISG cuts off European arms". building.co.uk. 19 September 2003.
- ^ Gardiner, Joey; Leftly, Mark, eds. (11 June 2004). "Shake-up at Interior Services gives King more power". building.co.uk.
- ^ Gardiner, Joey; Leftly, Mark, eds. (7 May 2004). "ISG lops off facilities arm in bid for faster growth". building.co.uk.
- ^ "Totty looks to social housing after buyout". constructionnews.co.uk. 6 October 2005.
- ^ "Interior Services Group buys ISG Asia for £4.6m". building.co.uk. 11 July 2006.
- ^ Richardson, Sarah (13 November 2007). "ISG snaps up Pearce Group". building.co.uk.
- ^ "ISG buys Cathedral". building.co.uk. 20 April 2007.
- ^ Richardson, Sarah (30 May 2007). "ISG buys Commtech Asia for £1.2m". building.co.uk.
- ^ "ISG profit falls 7% but retail turnover increases by half". building.co.uk. 11 September 2009.
- ^ Stothart, Chloe (3 December 2010). "ISG orders drop £55m". constructionnews.co.uk.
- ^ Cros, Luke (6 September 2011). "ISG reports 'best ever' revenue as construction profits halve". constructionnews.co.uk.
- ^ Cross, Luke (16 January 2012). "ISG chief looks overseas as firm takes £3m profit hit". constructionnews.co.uk.
- ^ Cross, Luke (5 March 2013). "ISG chief predicts another year of 0.2% construction margin". constructionnews.co.uk.
- ^ "It is now officially ISG". The Construction Index. 5 April 2013. Retrieved 17 May 2021.
- ^ Gardiner, Joey (4 April 2013). "ISG completes rebrand". building.co.uk.
- ^ Morby, Aaron (5 March 2013). "ISG construction arm edges back into profit". constructionenquirer.com.
- ^ a b "ISG weathers challenging year". The Construction Index. 17 May 2021. Retrieved 17 May 2021.
- ^ "AIM - Cancellation - ISG Plc". Proactive Investors. Retrieved 17 May 2021.
- ^ "Takeover of AIM listed ISG Plc by Cathexis". BDO. Retrieved 17 May 2021.
- ^ "ISG sets delisting date". The Construction Index. 26 February 2016. Retrieved 17 May 2021.
- ^ a b Taylor, Guy (24 September 2024). "ISG collapse shows cracks in UK construction industry". City AM. Retrieved 24 September 2024.
- ^ "ISG profits tumble 80%". The Construction Index. 12 July 2021. Retrieved 12 July 2021.
- ^ Haynes, Luke (10 June 2022). "ISG revenue grows by £300m after pandemic shock". Construction News. Retrieved 21 February 2023.
- ^ a b Prior, Grant (24 September 2024). "ESS Modular staff start looking for new jobs". Construction Enquirer. Retrieved 24 September 2024.
- ^ Morby, Aaron (5 July 2023). "Hollywood film studio pauses £600m Hertfordshire job". Construction Enquirer. Retrieved 19 September 2024.
- ^ Weinfass, Iain (8 September 2023). "Uncertainty surrounds ISG's £700m film studio". Construction News. Retrieved 19 September 2024.
- ^ Curtin, Andrew (8 August 2024). "The rise and decline of ISG". Construction Wave. Retrieved 19 September 2024.
- ^ Rogers, Dave (13 November 2023). "ISG tackles 'inaccurate and false claims' which prompted bosses into round of meetings with concerned firms". Building. Retrieved 19 September 2024.
- ^ Ing, Will (14 November 2023). "ISG denies 'wholly inaccurate' rumours about finances". Construction News. Retrieved 19 September 2024.
- ^ Banks, Charlotte (9 February 2024). "ISG chief steps down as 'fundamental reset' beckons". Construction News. Retrieved 19 September 2024.
- ^ Rogers, Dave (1 March 2024). "ISG brings in replacement for Paul Cossell as company secretary leaves". Building. Retrieved 1 March 2024.
- ^ Weinfass, Iain (3 July 2024). "Envelope specialist liquidation set to hit ISG for £14m". Construction News. Retrieved 19 September 2024.
- ^ Morby, Aaron (5 July 2024). "ISG sale set to be rubber-stamped". Construction Enquirer. Retrieved 8 July 2024.
- ^ Rogers, Dave (5 July 2024). "ISG set to be sold 'in coming days'". Building. Retrieved 5 July 2024.
- ^ Prior, Grant (23 July 2024). "ISG sale imminent as buyers set-up UK holding company". Construction Enquirer. Retrieved 23 July 2024.
- ^ a b Banks, Charlotte (19 September 2024). "ISG UK subsidiaries apply for administration". Construction News. Retrieved 19 September 2024.
- ^ Morby, Aaron (19 September 2024). "ISG files notice of administration". Construction Enquirer. Retrieved 19 September 2024.
- ^ a b "ISG heads for administration". The Construction Index. 20 September 2024. Retrieved 20 September 2024.
- ^ "FIS responds to concerns related to ISG Group". Federation of Interior Specialists. 19 September 2024. Retrieved 20 September 2024.
- ^ Prior, Grant (20 September 2024). "ISG Fit Out arm follows others with administration notice". Construction Enquirer. Retrieved 20 September 2024.
- ^ "ESS follows ISG into administration". The Construction Index. 24 September 2024. Retrieved 24 September 2024.
- ^ Prior, Grant (24 September 2024). "100 jobs lost as ESS Modular goes into administration". Construction Enquirer. Retrieved 25 September 2024.
- ^ a b Kleinman, Mark (20 September 2024). "Whitehall on alert as construction group ISG heads for collapse". Sky News. Retrieved 20 September 2024.
- ^ Barnard, Lucy (20 September 2024). "ISG UK subsidiaries file for administration". Construction Briefing. Retrieved 20 September 2024.
- ^ Prior, Grant (20 September 2024). ""Strung along" subcontractors fury over fall of ISG". Construction Enquirer. Retrieved 20 September 2024.
- ^ Prior, Grant (20 September 2024). "ISG boss apologises to staff in late night email". Construction Enquirer. Retrieved 20 September 2024.
- ^ Morby, Aaron (20 September 2024). "ISG buyer claims contractor walked away from deal". Construction Enquirer. Retrieved 20 September 2024.
- ^ Marrs, Colin (20 September 2024). "War of words over collapsed ISG sale". Construction News. Retrieved 20 September 2024.
- ^ Marrs, Colin (23 September 2024). "Senior industry figure 'had agreed' to chair ISG". Construction News. Retrieved 23 September 2024.
- ^ a b Simpson, Jack (20 September 2024). "More than 2,000 jobs axed as UK prison builder ISG collapses". The Guardian. Retrieved 20 September 2024.
- ^ a b "UK construction group appoints administrators". BE News. 20 September 2024. Retrieved 20 September 2024.
- ^ Rogers, Dave (25 September 2024). "Amount of money needed to fix ISG's finances 'way bigger' than first thought, entrepreneur who tried to buy firm says". Building. Retrieved 25 September 2024.
- ^ Rogers, Dave (30 September 2024). "Deficit at ISG originally thought to be 'at least £200m' but due diligence discovered it was 'way more', buyer claims". Building. Retrieved 2 October 2024.
- ^ Banks, Charlotte (20 September 2024). "Exclusive: ISG collapse risks £1.84bn of government contracts". Construction News. Retrieved 20 September 2024.
- ^ Gayne, Daniel (20 September 2024). "Government implementing 'detailed contingency plans' as ISG heads into administration". Building. Retrieved 20 September 2024.
- ^ "ISG group of companies in administration: information for employees and creditors". Gov.uk. 24 September 2024. Retrieved 24 September 2024.
- ^ Prior, Grant (20 September 2024). "Prison building plans facing delays over ISG collapse". Construction Enquirer. Retrieved 20 September 2024.
- ^ a b c "More than 2,000 jobs lost as ISG collapses". The Construction Index. 22 September 2024. Retrieved 23 September 2024.
- ^ a b Hakimian, Rob (25 September 2024). "Extent of upheaval caused by ISG failure becoming clear". New Civil Engineer. Retrieved 25 September 2024.
- ^ Rogers, Dave (4 September 2023). "ISG lands prized fit-out job with £150m Google King's Cross win". Building. Retrieved 20 September 2024.
- ^ Morby, Aaron (12 December 2023). "ISG wins £70m London Regents Quarter offices to labs job". Construction Enquirer. Retrieved 20 September 2024.
- ^ Waite, Richard (20 September 2024). "Top contractor heads for collapse leaving doubts over major projects". Architects' Journal. Retrieved 20 September 2024.
- ^ "Cardiff novates ISG contracts to keep Fairwater on track". The Construction Index. 21 October 2024. Retrieved 21 October 2024.
- ^ Kavanagh, Alice (20 September 2024). "Hempland Primary work stops as ISG files for administration". The Press. Retrieved 22 September 2024.
- ^ Corr, Sinead (20 September 2024). "Failure of construction giant ISG hits work at Bishop's Stortford High School and Avanti Grange". Bishop's Stortford Independent. Retrieved 20 September 2024.
- ^ Stott, Jack (24 September 2024). "Hyndburn's Wilson Sport Village at threat after ISG collapse". Lancashire Telegraph. Retrieved 24 September 2024.
- ^ Rogers, Dave (20 September 2024). "Clients told to move quickly to find replacements for ISG, or risk sites being stalled for months". Building. Retrieved 20 September 2024.
- ^ Rogers, Dave (24 September 2024). "Rival fit-out firm rules out taking on jobs left stranded by ISG collapse". Building. Retrieved 24 September 2024.
- ^ Morby, Aaron (8 October 2024). "ISG administrator tells subbies no funds to pay debts". Construction Enquirer. Retrieved 9 October 2024.
- ^ Prior, Grant (21 October 2024). "ISG suppliers facing initial £180m hit". Construction Enquirer. Retrieved 22 October 2024.
- ^ Weinfass, Iain (21 October 2024). "ISG: Former employees owed more than £70m". Construction News. Retrieved 23 October 2024.
- ^ Prior, Grant (28 October 2024). "ISG Fit Out arm went down owing subbies £111m". Construction Enquirer. Retrieved 28 October 2024.
- ^ Prior, Grant (29 October 2024). "Phoenix subbies get pay less notices after ISG failure". Construction Enquirer. Retrieved 29 October 2024.
- ^ Banks, Charlotte (25 October 2024). "ISG subcontractor files for administration". Construction News. Retrieved 25 October 2024.
- ^ Ing, Will (20 September 2024). "CLC urges prompt payment after ISG collapse". Construction News. Retrieved 23 September 2024.
- ^ Prior, Grant (23 September 2024). "ISG supply chain facing £700m+ hit". Construction Enquirer. Retrieved 23 September 2024.
- ^ Morby, Aaron (25 September 2024). "Balfour Beatty acts to head-off ISG contagion in supply chain". Construction Enquirer. Retrieved 25 September 2024.
- ^ Edser, Nick (23 September 2024). "ISG collapse 'devastating' for construction industry". BBC News. Retrieved 23 September 2024.
- ^ Lago, Christina (24 September 2024). "'Suppliers will feel hugely betrayed': trade body warns over ISG fallout". Construction Management. Retrieved 24 September 2024.
- ^ Morby, Aaron (1 October 2024). "Angry staff call for investigation into collapse of ISG". Construction Enquirer. Retrieved 2 October 2024.
- ^ "Our office locations". ISG Ltd. Retrieved 20 September 2024.
- ^ "Royal Festival Hall". European Union Prize for Contemporary Architecture. Retrieved 25 July 2023.
- ^ "News | Interactive Investor". Iii.co.uk. 9 September 2008. Retrieved 2 February 2013.
- ^ "ISG completes Zayed Sports City Stadium". Middle East Construction News. Retrieved 25 July 2023.
- ^ "ISG installs timber cycling track at Olympic Velodrome". The Construction Index. 20 September 2010.
- ^ Fitzpatrick, Tom (26 July 2012). "Eyes of the world on London and Olympic infrastructure". constructionnews.co.uk.
- ^ "£3m Grimsby wind farm base contract handed out". Grimsby Telegraph. 27 March 2013. Archived from the original on 2 February 2014. Retrieved 31 January 2014.
- ^ "Bush House to get £52m revamp". standard.co.uk. 29 May 2013.
- ^ "ISG Construction Ltd v Seevic College". fenwickelliott.com. 3 December 2014. Retrieved 5 August 2022.
- ^ "ISG to build Royal Mint visitor centre". Construction News. 14 October 2015. Retrieved 25 July 2023.
- ^ "ISG takes Wigan Town Hall back to the future". The Construction Index. 11 July 2013. Retrieved 6 August 2020.
- ^ "ISG named as main contractor for BBC Wales new headquarters at Central Square scheme in the centre of Cardiff". Wales Online. 18 November 2015. Retrieved 25 September 2017.
- ^ Weinfass, Ian (24 September 2020). "Client to reimburse ISG as cost on Waterloo job rises". Construction News. Retrieved 17 May 2021.
- ^ "Redevelopment at Lord's enhances world-class experience at the home of cricket". Lord's. Retrieved 18 May 2021.
- ^ Gregory, Rhys (3 December 2019). "ISG secures £89 million Cardiff transport interchange project". Wales247. Retrieved 20 November 2020.
- ^ "Inside Cardiff's new bus station as it opens after seven-year delay". ITV News. 27 June 2024. Retrieved 29 June 2024.
- ^ "ISG wins £281m UCL neurology centre". The Construction Index. 3 April 2019. Retrieved 21 February 2023.
- ^ Haill, Oliver (6 September 2021). "Construction begins on UK's first battery gigafactory". Proactive Investor. Retrieved 31 August 2022.
- ^ Lowe, Tom (16 August 2022). "ISG pauses work on £2.6bn car battery 'gigafactory' amid funding delays". Building. Retrieved 30 August 2022.
- ^ Jolly, Jasper (29 September 2022). "Shock therapy: turmoil engulfs Britishvolt's £3.8bn battery factory". The Guardian. Retrieved 29 September 2022.
- ^ "ISG starts £33m Moseley Road Baths restoration". The Construction Index. 23 August 2024. Retrieved 20 September 2024.