Hundreds of workers at Hartlepool's Utility Alliance have been made redundant after the company filed administration.
The energy consultancy firm is understood to have informed staff of its administration yesterday and announced that its workforce was being made redundant.
The company employed around 240 people at its Hartlepool office, as well as another 70 at its Newcastle and Sheffield sites.
Utility Alliance's website has now been taken offline and its telephone lines have been taken out of service.
A source close to the firm said that the company had filed for administration, with the expectation that administrators will be officially appointed next week.
One of the company's former employees took to Facebook to reveal she was being made redundant, saying: "So after four years of working for utility alliance today we got made redundant.
"I have met some amazing people and friends for life, I am absolutely gutted. I wish every one of you the very best and good luck for the future."
Another member of staff posted an update on LinkedIn about her redundancy.
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She said: "After almost four years at Utility Alliance I am gutted to say I've been made redundant. I've worked with some amazing people over the past four years and it's really sad that the era is coming to an end.
"What a day! Best of luck to everyone in the same position x."
Utility Alliance was formed in 2015 and had been named as one of the 海角视频's Best Companies to Work For in 2019 and 2020.
BusinessLive has attempted to contact Utility Alliance for comment.