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A telecommunications firm deploys sensor-driven surveillance to stop rhino poaching.

Rangers in South Africa noticed a horrible thing around 2011: They were losing a lot of rhinoceroses. The species, long considered a relative conservation success story, was rather suddenly under aggressive attack—not from the typical local poacher looking to get by, but from organized crime groups harvesting their horns for sale. By 2015, South Africa—home to nearly 80% of the world’s roughly 30,000 remaining rhinos—estimated it was losing a rhino to poachers every eight hours. Enter NTT, the Japanese IT services firm, which that year set up its technology at one of the country’s private game reserves. Rather than use drones and guards to track animals, NTT, working with Cisco, a two-time Change the World list honoree, set up sensor-powered surveillance equipment to help rangers communicate and monitor the humans coming and going from the reserve. (One of those rangers is depicted in the photo above.) The results were dramatic—reducing poaching incidents on the reserve by 96% in the first two years, dropping fence crossing and cutting to almost zero, and lowering security response time on the 6,200-hectare reserve to seven minutes. NTT has since spread these efforts to other reserves across Africa.

(Editor’s note: The activities described here were spearheaded by a division of NTT Holdings called Dimension Data. On July 1, Dimension and several other divisions were spun off as a wholly owned subsidiary of NTT, called NTT Ltd. The data below refer to NTT Ltd.)

Company Information

Impact Segment
Environmental Impact
IT Services
Jason Goodall
Company Type
Prior Year Rank-
Revenues ($M) (Last Fiscal Year)-
Profits ($M) (Last Fiscal Year)$11,000
Market Value ($M) as of 8/12/19-