The Bitcoin Group SE from Herford is considering taking over the Munich bank von der Heydt.
The company confirmed a previous Bloomberg report on Friday.
Only at the beginning of the year did a purchase of the bank by the crypto trading platform Bitmex fail.
According to informed circles, the bank could be valued at around 20 million euros if sold.
A representative of the institute declined to comment on the matter.
"All possible takeover activities are currently in an ongoing review process, in which various legal, regulatory and financial issues still have to be assessed," explained the Bitcoin Group with a view to the bank and other, unspecified takeover targets.
Bankhaus von der Heydt, with around 20 employees, recently not only operated traditional banking, fund and securitization transactions, but was also active in the application of blockchain technology and offered a range of banking services for digital assets.
However, the institute reportedly canceled some contracts with customers in the past few months.
The Bitcoin Group sees its focus on “innovative, disruptive business models and technologies from the areas of cryptocurrency and blockchain”, as it says on its own website.
When the takeover failed in the spring, the purchase offer came from BXM Operations AG, a company co-founded by Bitmex CEO Alexander Höptner - once head of the Stuttgart Stock Exchange.
The purchase contract with the owner of the bank, Dietrich von Boetticher, had already been signed at the time, but was not completed.
According to reports, von Boetticher is reluctant to put more money into the loss-making bank.