Delegates from most common law jurisdictions, including the US, Canada and Australia, will attend the two-day meeting, which starts next Monday.
Andrew Hind, chief executive of the commission, said he wanted to examine its approaches and be "stimulated into thinking about different ways of seeing things. Nobody has a monopoly on good ideas."
Hind said he also hoped to offer advice to New Zealand's Charities Commission, which was launched in 2005.
Trevor Garrett, chief executive of the New Zealand commission, said it made sense to bring together Anglophone jurisdictions because they all took notice of each other's case law. He said regulators from other jurisdictions might be invited to future meetings.