The firm is among a group of mid-sized buyers that focus on lower-mid-market and mid-market secondaries deals.
The asset manager's predecessor fund raised $568m to invest in small- and medium-sized funds in developed and emerging markets.
The firm has added 29 staff this year, including two from British Columbia Investment Management Corporation and Citco Canada.
The flight towards high-quality assets is ongoing as buyers wait for clarity on the real economic impact of covid-19, according to Jasmin Capital's head of secondaries.
The firm has held the final close on its latest secondaries vehicle, which is already 20% committed to deals involving GPs such as Thomas H Lee Partners and Clearlake Capital Group.
The management team of Glouston Partners bought it out of $22bn hedge fund and private equity manager Permal Group in 2016.
Campbell Lutyens worked on $12.5bn of deals last year including five single-asset restructurings, two strip sales and two preferred equity deals.
Brian Mooney is one of seven high-level executives to have resigned from Greenhill's secondaries advisory unit in recent months.
The secondaries market is more seller-friendly than ever, allowing sponsors to push terms that surprise even seasoned pros. This is unlikely to last.
This is the second GP-led process that HarbourVest has led on a Portobello fund, after the 2015 restructuring of 2006-vintage Fund II.