The enterprise Wi-Fi market grew 5.9% yr/yr in Q4, and 3.7% over the whole of 2015, according to figures from IDC.
The consumer market, where firms like Netgear and D-Link compete, declined 3.9% in Q4 and 4.8% in 2015.
Cisco is still the enterprise market's dominant vendor.
IDC respectively assigns Cisco Q4 and full-year enterprise Wi-Fi shares of 45% and 47%, down from 48.1% and 47.8% a year earlier.
Cisco's wireless revenue (dominated by Wi-Fi) was flat yr/yr in the company's January quarter at $613M. Second biggest HP Enterprise, which acquired Wi-Fi hardware/software vendor Aruba Networks last year for $3bn, is estimated to have a 16.9% 2015 share (up 70 bps yr/yr) after factoring sales from both Aruba and HP proper.
Thanks in part to Aruba, HPE reported 54% yr/yr networking sales growth for its January quarter, allowing the company's enterprise hardware unit to see positive growth in spite of server, storage, and tech services declines.
Third-placed Ruckus Wireless is estimated to have a 6.9% share, up from 2014's 6.3%.