Woodville dairy farmers Ben and Nicky Allomes were named the Best Primary Sector Employers.
The couple, who own Hopelands Dairies, also won the Innovative Employment Practices award.
"They have creatively solved the age-old problem of work-life balance by investing in a rostering system that allows their workers ownership of when they work and what they do on the ground," said Minister of Agriculture Damien O'Connor."
"They have also shared this knowledge with their community."
Ben is also a DairyNZ board director.
The Māori owned and operated Miraka dairy company won the Māori Agribusiness category.
The MPI AGMARDT Primary Industries Good Employer Awards have been established to recognise exceptional employers across the dairy, seafood, forestry, and horticulture sectors, which collectively employ about 350,000 people — one in seven working New Zealanders, and as many as one in three in some regions.
In this year's NZI Sustainable Business Awards, presented recently in Auckland, dairy won two categories, and received the judges' commendation in a third.
Matamata dairy farmer and chair of the Dairy Environment Leaders' Forum, Tracy Brown, claimed the Sustainable Superstar award presented to a person who inspires and leads others to make a difference.
The judges said Tracy is a dairy farmer who has devoted the past 17 years to modelling and promoting sustainable farming.
"She set up her farm in a sustainable way long before it became mainstream…She is a human dynamo with great passion, commitment and guts…Sustainable dairying isn't just Tracy's job, it's her life".
The Transforming Food category went to the organic dairy farm Our Land of Milk and Honey, which also produces honey, and has a market garden.
The farm is located in the foothills of Sanctuary Mountain Maungatautari Reserve.
Judges said this organic dairy farm is modelling a different way of farming. Its focus is on carbon reduction and the interface between profit and environmental mitigation. It shows that farming can benefit the environment, community and economy…".
In the Efficiency Champion category the judges commended Fonterra for its plant in Pahiatua.
The NZI Sustainable Business Awards are New Zealand's longest-standing sustainability awards, established 16 years ago to recognise and celebrate success in sustainability.