The proxy contest at Hudson Global Inc. (NASD: HSON), a New York-based professional staffing firm, appears to be intensifying as the firm’s 2014 annual meeting on May 29 approaches. Investment firm Lone Star Value Management LLC nominated Richard Coleman Jr. and Jeffrey Eberwein as directors. The group, led by Lone Star Value, holds approximately 7.4 percent of the outstanding common stock of Hudson.

Lone Star Value on Friday issued an open letter to Hudson Global shareholders contending that Robert Dubner and Jennifer Laing as incumbent board members have “terrible track records and should be held accountable.” The letter claims the company is losing money and its stock price is down 14 percent year to date.

And today, Lone Star issued a press release stating that Institutional Shareholder Services, an independent proxy voting advisory firm, has recommended that Hudson’s shareholders vote for both Lone Star Value’s nominees.

However, Hudson today issued a letter to stockholders stating that its transformation plan is working and that independent proxy advisory firm Glass Lewis & Co. recommends that stockholders not elect Eberwein.