Extend Technologies (Australia), Business Formula (Malaysia) and Cornerstone Asia (Singapore) are now trading as NTT Data Business Solutions, creating one of the world's largest SAP reseller and consulting firms.
The firm also draws on the experience of Germany-based itelligence.
NTT Data Business Solutions is led by Herbert Vogel, CEO and founder of itelligence, with Max White (formerly managing director of Extend Technologies) as CEO Asia Pacific.
"I am delighted that Extend, Business Formula and Cornerstone now form part of NTT Data Business Solutions in the APAC region and that Max White has taken the lead," said Mr Vogel.
NTT Data Business Solutions has over 3000 SAP consultants, with 300 of them in South East Asia and Australia.
"The APAC region is thriving and having already commenced operations in Vietnam earlier this year, NTT Data Business Solutions is looking to further expansion in growth markets such as Thailand, Indonesia and the Philippines," Mr White added.