Eversheds Sutherland saw its global revenue rise by 10 percent last year, hitting $1.18 billion (£900 million) in turnover two years after its transatlantic tie-up.
The firm first broke the $1 billion barrier last year, reaching $1.03 billion (£700 million).
Last year the firm continued its global expansion, launching in Prague and Bratislava via local mergers.
The firm invested in technology, rolling out a new software for its disputes team and launching a crowdsourcing platform for all its staff. It also signed up to use the artificial intelligence platform Luminance.
Significant deals during the year included winning a role on the insurance company Legal & General’s £4 billion ($5.18 billion) pension buy-in of a British Airways pension scheme and advising on the renationalization of train company East Coast Main Line.
Last year, the firm’s financial accounts for its non-U.S. business revealed that its top earner took home £1.5 million ($1.9 million) during 2016-17. The legacy Eversheds business took in revenues of £438.6 million ($567.7 million) during the last financial year, up from £405.5 million ($524.84 million) in 2015-16.
“Based on client feedback, we focused in 2018 on enhanced service through the use of innovative solutions, including improved processes and new technology, as well as by expanding our geographic presence,” Eversheds Sutherland co-CEO Mark Wasserman said in a statement.
Fellow co-CEO Lee Ranson added: “The growing strength of our business during 2018 was evidenced not only by our revenue growth but also by a number of significant new global panel appointments and major client wins.”