The engineering firm IMI revealed that it had been hit by of a cyberattack, barely one week after rival Smiths Group claimed that hackers had accessed its worldwide systems.
IMI, a company based in Birmingham, refused to reveal what information had been accessed during the hack, however it is believed that systems in several of its locations throughout the world were affected.
In order to address the intrusion, it has isolated specific systems and is collaborating with cybersecurity experts that were hired from outside.
"The company hired outside cybersecurity specialists to look into and contain the incident as soon as IMI learned about the unauthorized access," IMI stated.
Additionally, it stated that IMI is taking action to meet its regulatory responsibilities.
Employees and customers have been informed about the incident, but it is understood that the hack was not targeting staff or customer data.
Shares in the firm fell 3% in morning trading on Thursday.
Just last week, fellow FTSE 100 firm Smiths Group alerted the stock market to a cyber attack amid a recent spate of IT hacks on UK companies, although the two incidents are not believed to be linked.
Transport for London suffered a major IT hack, which saw about 5,000 customers warned their details may have been accessed.
High-end department store Harvey Nichols also revealed last autumn that some customer details may have been exposed when it fell victim to a cyber attack.
And in November, Portsmouth City Council said it was one of a number of local authorities across the country hit by a distributed denial-of-service (DDoS) attack, which involves the attacker flooding a server or website with internet traffic originating from more than one source.
IMI operates in 50 countries, with the US, Europe, and Asia currently accounting for the majority of its activity.
The company's areas of expertise include fluid and motion control markets, engineering components for factories and production lines, process automation, climate control, transportation, and the life sciences.