"The recent acceleration of digital transformation has made data security and compliance essential for all businesses," said Nitro chief product officer Sam Thorpe.
"Many key sectors and countries now have regulations and legislation specifying data residency requirements, and organisations around the world are deeming this increasingly important.
"Addressing and adapting to the rapidly changing legal frameworks in different regions can be a major challenge, but Nitro Sign Premium makes it simple for organisations to meet eSignature security and compliance requirements."
Nitro says it uses local data centres to address compliance issues, plus increased security via Microsoft Azure.
The move into the Australian and North American esignature markets will build on a strong foundation in Europe, the company said.