Carillion and the two other firms in the joint venture - Eiffage and Kier - were forced to give assurances that they could step in to deliver on the work if one of the partners collapsed.
A HS2 spokesman described Carillon going into liquidation as “clearly disappointing for them and the wider UK construction industry”.
He went on: “We are continuing to discuss with Kier and Eiffage the implementation of contingency plans.
“Work will continue as planned with no unnecessary or additional exposure to the taxpayer.”
The firms are still in the design phase of the deal, with detailed proposals due to be submitted by the end of the year.
Phase one of the £55.7bn railway will run between London and Birmingham from December 2026, with a second Y-shaped phase extending to the North.
Carillion are one of around six main contractors for Network Rail, which owns and operates Britain's railway infrastructure.
It is mostly involved in bridge replacements and track renewal, with contracts worth in total around £150m to £200m.
A Network Rail spokeswoman said: “Network Rail is activating its contingency plans as a result of this unfortunate news.
“Passengers can be reassured that their services will be running as normal today as Carillion's work for Network Rail does not involve the day-to-day running of the railway.”
Business news: In pictures
Show all 12
Business news: In pictures
1/12 Future product placement will be 'tailored to individual viewers'
Marketing executives say that product placement in films and televison shows on streaming services such as Netflix may be tailored to individuals in future. For instance, if data shows that a viewer is a fan of pepsi, a billboard in the background of a shot would host an advert for pepsi, while for a viewer known to have different tastes it could be for Coca-Cola
Paramount
2/12 Corbyn wishes Amazon a happy birthday
In a card sent to Amazon CEO Jeff Bezos on the company's 25th birthday, Labour leader Jeremy Corbyn writes: "You owe the British people millions in taxes that pay for the public services that we all rely on. Please pay your fair share"
3/12 No deal, no tariffs
The government has announced that it would slash almost all tariffs in the event of a no-deal Brexit. Notable exceptions include cars and meat, which will see tariffs in place to protect British farmers
Getty
4/12 Fingerprint payment
NatWest is trialling a new bank card that will allow people to touch their hand to the card when paying rather than typing in a PIN number. The card will work by recognising the user's fingerprint
NatWest/PA Wire
5/12 Mahabis bust
High-end slipper retailer Mahabis has gone into administration. 2 Jan 2019
Mahabis
6/12 Costa Cola
Coca-Cola has paid £3.9bn for Costa Coffee. A cafe chain is a new venture for the global soft drinks giant
PA
7/12 RIP Payday Loans
A funeral procession for payday loans was held in London on September 2. The future of pay day lenders is in doubt after Wonga, Britain's biggest, went into administration on August 30
PA
8/12 Musk irks investors and directors
Elon Musk has concluded that Tesla will remain public. Investors and company directors were angry at Musk for tweeting unexpectedly that he was considering taking Tesla private and share prices had taken a tumble in the following weeks
Getty
9/12 Jaguar warning
Iconic British car maker Jaguar Land Rover warned on July 5, 2018 that a "bad" Brexit deal could jeopardise planned investment of more than $100 billion, upping corporate pressure as the government heads into crucial talks
AFP/Getty
10/12 Spotif-IPO
Spotify traded publically for the first time on the New York Stock Exchange on Tuesday. However, the company isn't issuing shares, but rather, shares held by Spotify's private investors will be sold
AFP/Getty
11/12 French blue passports
The deadline to award a contract to make blue British passports after Brexit has been extended by two weeks following a request by bidder De La Rue. The move comes after anger at the announcement British passports would be produced by Franco-Dutch firm Gemalto when De La Rue’s contract ends in July.
The British firm said Gemalto was chosen only because it undercut the competition, but the UK company also admitted that it was not the cheapest choice in the tendering process.
12/12 Beast from the east economic impact
The Beast from the East wiped £4m off of Flybe’s revenues due to flight cancellations, airport closures and delays, according to the budget airline’s estimates. Flybe said it cancelled 994 flights in the three months to 31 March, compared to 372 in the same period last year.
1/12 Future product placement will be 'tailored to individual viewers'
Marketing executives say that product placement in films and televison shows on streaming services such as Netflix may be tailored to individuals in future. For instance, if data shows that a viewer is a fan of pepsi, a billboard in the background of a shot would host an advert for pepsi, while for a viewer known to have different tastes it could be for Coca-Cola
Paramount
2/12 Corbyn wishes Amazon a happy birthday
In a card sent to Amazon CEO Jeff Bezos on the company's 25th birthday, Labour leader Jeremy Corbyn writes: "You owe the British people millions in taxes that pay for the public services that we all rely on. Please pay your fair share"
3/12 No deal, no tariffs
The government has announced that it would slash almost all tariffs in the event of a no-deal Brexit. Notable exceptions include cars and meat, which will see tariffs in place to protect British farmers
Getty
4/12 Fingerprint payment
NatWest is trialling a new bank card that will allow people to touch their hand to the card when paying rather than typing in a PIN number. The card will work by recognising the user's fingerprint
NatWest/PA Wire
5/12 Mahabis bust
High-end slipper retailer Mahabis has gone into administration. 2 Jan 2019
Mahabis
6/12 Costa Cola
Coca-Cola has paid £3.9bn for Costa Coffee. A cafe chain is a new venture for the global soft drinks giant
PA
7/12 RIP Payday Loans
A funeral procession for payday loans was held in London on September 2. The future of pay day lenders is in doubt after Wonga, Britain's biggest, went into administration on August 30
PA
8/12 Musk irks investors and directors
Elon Musk has concluded that Tesla will remain public. Investors and company directors were angry at Musk for tweeting unexpectedly that he was considering taking Tesla private and share prices had taken a tumble in the following weeks
Getty
9/12 Jaguar warning
Iconic British car maker Jaguar Land Rover warned on July 5, 2018 that a "bad" Brexit deal could jeopardise planned investment of more than $100 billion, upping corporate pressure as the government heads into crucial talks
AFP/Getty
10/12 Spotif-IPO
Spotify traded publically for the first time on the New York Stock Exchange on Tuesday. However, the company isn't issuing shares, but rather, shares held by Spotify's private investors will be sold
AFP/Getty
11/12 French blue passports
The deadline to award a contract to make blue British passports after Brexit has been extended by two weeks following a request by bidder De La Rue. The move comes after anger at the announcement British passports would be produced by Franco-Dutch firm Gemalto when De La Rue’s contract ends in July.
The British firm said Gemalto was chosen only because it undercut the competition, but the UK company also admitted that it was not the cheapest choice in the tendering process.
12/12 Beast from the east economic impact
The Beast from the East wiped £4m off of Flybe’s revenues due to flight cancellations, airport closures and delays, according to the budget airline’s estimates. Flybe said it cancelled 994 flights in the three months to 31 March, compared to 372 in the same period last year.
Network Rail pledged to work with the administrators and Carillion's management to ensure the firm's collapse “has as little impact as possible on our projects”.
In November 2014 Carillion was one of five companies handed deals to carry out “high value construction work” for Highways England's £5bn five-year investment in England's motorways and major A roads.
It holds a major role in the smart motorway project, through which the hard shoulder is converted to a live traffic lane.
Carillion's website also states that it is “delivering transformative pieces of infrastructure” on the road network in Scotland and Wales.
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