Calls to Boston Properties and the Bedford Business Park's prospective tenants were not returned by press deadline, but industry sources claim Zink Imaging and Citrix Systems have each committed to taking space at the 22-acre, 470,000-sf campus. Presently headquartered in Waltham, Zink Imaging is a cutting-edge digital printing firm that is expected to lease about 60,000 sf at Building 4G. Sources say the company will take over sublease space left by the departure earlier this year of Affymetrix, a life sciences company that consolidated operations in California. Zink has agreed to extend its term beyond the end of that sublease, add industry sources. The brokers for Zink are reportedly Brooks Murphy and Neil Ross of Staubach Co., who did not respond to inquiries.

Citrix Systems is also angling for more than 50,000 sf at Bedford Business Park's 14 Crosby Dr. Another rising technology player, Citrix presently has offices in Westford and Waltham, taking over the latter property following last year's purchase of a burgeoning startup company. Both operations would be consolidated at the Bedford Business Park, sources indicate. A letter-of-intent has been inked, GlobeSt.com has been told, but it was unclear whether the lease itself has been completed. Nonetheless, industry observers say the firm appears headed to the three-building campus. "I'm very comfortable" the move will be made, says one source who claims the LOI is in hand.

The nearby 125 Middlesex Turnpike is the focal point of GSI Group, a Billerica technology company that also is seeking to bring multiple divisions under one roof. Sources say the company has agreed to take 150,000 sf in the single-story building, which is owned by an affiliate of local investment group Mohawk Partners LLC. Calls to GSI's CFO, Robert Bowen, and to principals at Mohawk were not returned. "It's a big deal," one broker tells GlobeSt.com, among several colleagues who say that lease has also proceeded to the LOI stage.