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The Dunedin-based company, which provides computer-based data acquisition systems for research and education and has offices around the world, has been named the best place to work by The Scientist magazine.
The magazine for life science professionals is published by Canada-based LabX Media Group.
The first staff in New Zealand heard about it was when they were contacted by the company's United States office, after an article was spotted in the magazine, global HR manager Kelly Macknight said.
"That's pretty much at this point what we know. If that's what they [The Scientist] think, we're pleased with that."
The company's New Zealand office has also been a finalist in the JRA best workplace awards for the past three years.
Asked what made it such a good workplace, Mrs Macknight said the company really valued its staff, who were "fantastic".
It tried to be as open with staff as possible, making sure "people know what's going on".
The Dunedin office is the company's research and development office, employing 43 staff. There are also offices in Australia, Europe, the United States, Brazil, Chile, Japan, China, Malaysia, India and Pakistan, with a total workforce of about 170.
In its June edition, the magazine said the atmosphere at ADInstruments was still laid-back, even after 25 years in business and after going global.
In March, Mrs Macknight helped organise a company conference in Hong Kong, attended by about 120 people, including 80 staff. Conferences were held every two to three years.
In Dunedin, they were "a reasonably social bunch", with a social club and activities organised, Mrs Macknight said.
ADInstruments was established in 1988 and has become a world-leading provider of computer-based data acquisition and analysis systems for life science.
The company's products enabled users to record and analyse life science data, whether to further industry research, or or to advance understanding of scientific concepts in biomedical classrooms.
The company's client list includes Toyota, Shiseido, Pfizer, Human Genome Project and Roche Bioscience.
Other companies in The Scientist's top 10 workplaces included DuPont, which has more than 70,000 employees, and Dow AgroSciences, which has more than 7000 staff.