America’s Growth Capital (AGC), a national growth focused investment bank, has leased 13,797 square feet of first class office space at 99 High St. in Boston.

The space on floor 22 will serve as the firm’s U.S. headquarters. The premier, LEED Certified 730,000-square-foot first class office and retail tower is owned by TIAA-CREF.

AGC occupied the space in August, moving from Boston’s 125 High St.

Jones Lang LaSalle is the construction manager, property management and exclusive leasing agent for the asset. An extensive capital improvements program is nearing completion at the building.

Company Managing Director Bill Barrack and Executive Vice President Ben Heller represented TIAA-CREF in the transaction, Senior Vice President Robert Cleary and Senior Associate Derek Losi of UGL Services represented the tenant.

"UGL Services did excellent work teaming with our executive staff and introduced us to several very viable opportunities during our market evaluation," said Chief Executive Officer Ben Howe of AGC. "99 High Street offered a combination of familiar location, very nice views, great value and strong ownership. For America’s Growth Capital, we have made a great decision and we are very pleased with our new office space environment."

99 High is currently 85 percent leased. Other tenants include: Wolf & Co., Capital Crossing, Cannacord Adams, FINRA, Marsh & McClennan, Hancock Natural Resources, Murtha Cullina LLP, Chartis and PNC. Jones Lang LaSalle has completed approximately 450,000 square feet of leasing in the building in the last six years.