In a trading update for the year ended 31 January 2019, the AIM-listed group – which floated in November 2017 - said it continued to trade strongly through the second half of the year.
The company said, over the period, it has continued to focus on delivering its strategy by “driving strong organic growth and has continued to invest in the infrastructure which underpins this strategy.”
James Knight, Keystone Law’s chief executive officer, commented: “I am delighted with the progress the Group has made in our first full year on AIM.”
He added: “Our distinctive platform model has successfully attracted a significant number of new, high-quality lawyers which has helped us scale the business.
“This impressive growth coupled with the excellent performance and hard work of our lawyers means that we are confident that we will comfortably beat market expectations.”
In mid-morning trading, Keystone law shares were 12.9% higher at 384p.
The firm said it will be announcing its final results for the year ending 31 January 2019 on Wednesday, 8 May 2019.