Macfarlanes has promoted five associates into the partnership, a slight increase on the last two years, when the firm made up four associates.
There were two new partners in debt finance, the first for several years, and one each in the firm's corporate tax, property and litigation groups.
Senior partner Robert Sutton said: "To promote five excellent partners in key areas of the practice is a tangible sign of our confidence in our practice. We see a growing demand for specialist, high quality, independent advisers across many of the markets on which we concentrate."
There were no promotions in the firm's core private equity and private clients practices, which have seen one new partner each in the last two years.
The sole litigation promotion, Douglas Wass in contentious construction and engineering practice, follows five years without a new partner in the department.
For the second year running, no women were invited to join the partnership.
All the new partners go to the non-equity tier for three years before being given a chance to share in the equity.
The new partners are: Andrew Loan (corporate tax) Colin Morgan (debt finance) Richard Rogerson (debt finance) Tristan Ward (property) Douglas Wass (contentious construction and engineering)