Apply to join
It's free so why not? In other words, zero cost and great value.
All we ask is to commit to promoting your business and, by doing that, you also promote this cluster of good member businesses.
You might also consider opting-in to the benefits your business will gain from supporting an ideal community organisation, Research For Life - Wellington Medical Research Foundation. It's entirely over to you but a small regular donation acts as great philanthropic marketing for your business and might cost you $1 per day, which entitles you to show your support in your Profile Page.