Webridge, a local start-up whose software helps corporations create business-to-business e-commerce sites, added 16,191 sf to the 50,000 sf it was already leasing at 1925 NW AmberGlen Pkwy. for a 10-year term. The two-year-old, 90,000-sf building is now 100% leased, says Grubb & Ellis' Dave Squire, who with managing director Brad Fletcher and Steve Marcy are the exclusive leasing agents for AmberGlen. Lease rates in the building average about $25 per sf.

Cupertino, CA-based Rational Software, a publicly-traded maker of software that helps automate the software development process, added 14,381 sf to the 30,000 sf it was leasing at 1920 NW AmberGlen Pkwy. for an undisclosed term. The two-year-old, 50,000-sf building is now just 1,800 sf from being 100% leased, Squire tells GlobeSt.com Lease rates in this building average about $22 per sf. Seth Weinstein of Dallas, TX-based Cawley International represented Rational in the lease expansion.

Meanwhile, AmberGlen continues to expand. Three industrial-flex buildings and a third class A office building are under construction within the 217-acre business park. Birtcher broke ground late last year on 1915 NW AmberGlen Pkwy, a 100,000-sf, four-story class A office building to be the mirror image of Webridge's building.