About Us

A dedicated team you can rely on.

We can relate to business owners because we've all been business owners ourselves.

It is to our advantage that our employees are all Central Otago locals, so we understand and recognise how change and growth has affected our district and the businesses and families who live here. We have formed many great relationships with our clients because they know and trust us.

We understand the importance of being able to have face to face meetings sometimes. Lucky for you, we have our own office with a boardroom with all the trimmings (including a coffee machine!) AND parking in the industrial area of Wanaka. You can pop in anytime to catch up with us and have a coffee and a chat. You can even hire our boardroom for client meetings.

Meet the Mighty Efficient team

Bronwyn McCarthy

Bronwyn started Mighty Efficient in 2012, identifying the Wānaka region’s need for a quality, reliable, bookkeeping service using new Xero accounting technology. Mighty Efficient has been the area’s number one booking service for a number of years, just ask a local. This is due to Bronwyn’s work ethic and ability to relate with everyday kiwis involved in business, just like she is.

She is the Otago Regional Director for the Institute of Certified New Zealand Bookkeepers, which brings new and experienced bookkeepers together to socialise and talk all things bookkeeping.

Bronwyn is also involved in her husband’s hunting and tourism business, Lake Hawea Hunting Safaris. She assists various local non profit organisations free of charge and is Mum to four amazing girls which means being time efficient is a necessity for Bronnie!

Once the tools are down you will find her out on the lake with her family, a glass of wine in hand, paddle boarding, at the gym, or running kids around.

Jess Schmelz

Jess is our in house tradie lady, with years of experience behind her she brings valuable knowledge of all things Trade. Her arsenal of qualifications includes being an ICNZB Certified Bookkeeper, NZQBA Qualified Bookkeeper, Xero Certified, Payhero Certified, and on top of that she is currently studying for a Diploma in Business majoring in Project Management via correspondence.

Jess’ background includes Managing Shooters bar for over 10 years, winter seasons at Cardrona and Coronet peak in Race & Events crew and Mum to two gorgeous boys.

If she’s not in the office, you’ll find her on the slopes, on the water in her yacht, paddleboarding, or laying on the beach with a glass of Rosé in her hand.