The number of active fleet management systems deployed in commercial vehicle fleets in Europe was 5.3 million in Q4-2015, according to a new research report from the M2M/IoT analyst firm Berg Insight. Growing at a compound annual growth rate (CAGR) of 14.9%, this number is expected to reach 10.6 million by 2020.

All the top 10 vendors have more than 100,000 active units in Europe. TomTom is now the largest provider of fleet management solutions for the European market, with an installed base of about 529,000 units at the end of 2015, according to the report. Masternaut ranks second with an estimated 350,000 units at the year’s end, and Microlise is third with around 175,000 units. Trakm8, ABAX, Teletrac Navman, Transics, Trimble, and OCEAN (Orange) also have more than 100,000 active devices in the field.

Manufacturers are now growing their subscriber bases considerably in Europe thanks to standard line installation of fleet management solutions, according to Berg Insight. Dynafleet by Volvo, FleetBoard by Daimler and Scania Fleet Management are the most successful, with active subscriber bases of 81,000 units, 86,000 units and 133,000 units respectively as of Q4-2015.

The consolidation trend the European market continued in 2016, according to the researchers. TomTom acquired Finder in Poland in December 2015, adding 60,000 vehicles to its installed base. In the Netherlands, ITmobile was acquired by Canadian Fleet Complete in December 2015. Viasat acquired Poland’s CMA Monitoring in April 2016 and Belgium’s EMIXIS in July. The investment firm Sofindev acquired a majority stake in GeoDynamics in April. GSGroup has acquired three companies in the past years, most recently acquiring PPCT in Finland in May. In June, Verizon agreed to acquire Telogis, and in August, the company acquired Fleetmatics for $2.4 billion, becoming the largest fleet management solution vendor worldwide. The two recent deals mean that Verizon’s telematics unit will have more than 1.6 million vehicles under management.