Rosen, which is also based in Switzerland, offers oil and gas pipelines inspection services.
After outbidding other competitors, Partners Group is now the most likely buyer for Rosen, according to sources.
The company is currently trying to negotiate the conditions of a contract, sources added.
Rosen’s shareholders have been asking as much as $4bn for the company, the publication reported.
According to sources, Rosen’s investors may choose to keep the company if their value expectations are not satisfied, as several bids came in far below that.
How well do you really know your competitors?
Access the most comprehensive Company Profiles on the market, powered by GlobalData. Save hours of research. Gain competitive edge.
Your download email will arrive shortly
Not ready to buy yet? Download a free sample
We are confident about the unique quality of our Company Profiles. However, we want you to make the most beneficial decision for your business, so we offer a free sample that you can download by submitting the below formBy GlobalData
One of them added that the family shareholders of the business could retain a small stake in any transaction.
Talks are still ongoing and there is no certainty that a deal will materialise.
Partners Group’s representative declined to comment on the development, while Rosen’s agent did not immediately respond to requests for comment.
Earlier in September 2023, reports emerged that Brookfield Asset Management and Thomas H Lee Partners were considering bidding for the energy services company.
The investment arm of US-based banking major Goldman Sachs Group was also believed to be among the suitors.
Rosen was founded in the early 1980s and manufactures instruments for evaluating the integrity of gas and oil assets, such as storage tanks and pipelines.
The company employs about 4,000 people and has operations in the Americas, Europe, the Middle East, and Asia Pacific.