The acquisition was first agreed in October.
Under the deal, Esports Technologies will own Aspire’s B2C online content portfolio and sportsbook brands.
Aspire will run back-end operations for the acquired brands, which include Karamba, Hopa and BetTarget.
Also through the deal, Esports Technologies will enter into tier one regulated markets including Great Britain, Germany and Denmark as the deal gives it access to Aspire’s licences in those countries.
“Acquiring Aspire Global’s portfolio of innovative B2C brands, access to new markets, and its 1.25 million depositing customers is a strategic leap in our journey to become a world leader in esports wagering,” said Aaron Speach, CEO of Esports Technologies.
“We look forward to our partnership with Aspire as we continue to scale.”
Aspire reported B2C revenue of $78.3m in the full year ended 30 September a rise of 43.0% year-on-year. Also in this period, Aspire’s B2C business reported wagering stakes of $1.86bn.
“Esports Technologies has rapidly established itself as one of the foremost innovators in esports wagering,” said Tsachi Maimon, CEO of Aspire.
“Acquiring the world-class B2C portfolio we’ve built will further expand their reach in this skyrocketing global market.”
In July, Aspire appointed Quincy Raven as managing director to lead its US expansion.