Staff and partners at Autonomous Research, the independent financials research house chaired by City of London grandee Lord Myners, have risen as the firm recorded its sixth consecutive year of revenue growth.

The firm, established in 2009 by former Merrill Lynch banks analysts including Stuart Graham and Ed Allchin, said average UK staff headcount increased from 21 to 28 over the 12 months to March 31, according to accounts filed at Companies House.