Keller Group plc (LSE: KLR) is a major British based ground engineering company.

It is listed on the London Stock Exchange and is a constituent of the FTSE 250 Index.

The Company was first established as the Ground Engineering division of GKN plc in the 1950's.

In 1974 it acquired Johann Keller, a German ground engineering business from which name of the Company is derived.

In 1984 it bought Hayward Baker Inc., a US ground engineering business.

In 1990 it was the subject of a management buy-out from GKN plc supported by Candover.

It was first listed on the London Stock Exchange in 1994.

The Company had a social housing division until 2007 when it was sold for nominal consideration.

Source: Wikipedia