The mystery members of the Hastings City Business Association are revealing themselves, but 100 remain in the shadows.
Membership is comprised of businesses and building owners in the city centre.
The council levies rates, which funds the 460-member association, but has not revealed the people behind property-owning trusts, citing the Privacy Act.
"The council has sent a letter out to all of the ratepayers, telling them we would like to communicate with them," association manager Susan McDade said. Forty responses were received but the identity of about 100 building owners remained a mystery.
"All the businesses we know - we can walk in and say hi and get their details that way - but some of them don't even know who their landlord is."