Dean Thompson, a partner at Holland Beckett Lawyers, said Hobec was a long-standing business in the community.
"We make money largely out of the local population and it's a chance for us to give back. As a firm, we've always given - there's not too much we're not involved with and it's good to be seen to be doing things."
However, Mr Thompson noted members of the firm also gave a lot to various causes anonymously and were involved in a range of community activities.
Mark Cairns, chief executive, Port of Tauranga, said the company operated in a "pretty special" piece of real estate and got a lot out of the community.
"You can have people at the hard right end who would call sponsorship shareholder theft, but I think we have to put something back and we try to make sure we do it across all sectors."
Leanne Taylor, of Taylor Brothers Transport, said her family had been inspired to sponsor by her first festival attendance at Knee Deep, an acrobatic dance performance by Casus in 2013.
"My then 9-year-old son and my husband were enthralled.
"We decided when we were approached for sponsorship that we wanted more kids and people to be exposed to the fact that Tauranga has something really special happening. We're also celebrating our 50th anniversary this year so it's a great opportunity to give something back to the community."
The Tauranga Arts Festival
* Budget - $1 million
* Funding: Box office, 23 per cent; cash sponsorship, 12 per cent; contra sponsorship, 15 per cent (mostly media); patronage, 5 per cent (individual and small business donations);
grants, 42 per cent (includes TECT, Creative NZ, TCC, and community trusts); other, 3 per cent (interest, bar revenues).
* In 2013 the festival injected about $2.6 million into the local economy.