WebAI is making a louder statement on the downtown Austin skyline, expanding its footprint inside the 26-story tower at 515 Congress Avenue and putting its name on the building. The move gives the local AI startup a highly visible headquarters and adds engineering capacity as it continues to scale.
WebAI Takes the Top Floor and a Street-Level Spotlight
The company has leased the top floor, a ground-level space, and several floors in between, about 40,000 square feet in all, and plans to mount new signage near the tower’s southeast corner at Sixth and Congress, replacing the existing PMG marquee. The deal pulls webAI’s Austin operations together under one downtown roof and boosts its profile along Congress Avenue, according to The Real Deal.
Fresh Funding Fuels the Push
webAI recently announced an extension to its Series A that values the company at about $2.5 billion, with investors including Time Ventures, Atreides Management, Forerunner, and OXCART Ventures. Company leaders say the influx of capital will accelerate research, support a new Intelligence Labs initiative, and speed up product work in aviation and connected devices, as detailed by the company and reported by Axios.
Headquarters, Labs and How the Space Is Set Up
webAI’s Austin headquarters is listed at 515 Congress, and the company is slated to occupy the tower’s 26th floor, giving it a top-floor executive suite with private access. The expansion also includes a ground-floor engineering lab with freight-elevator access that is intended for specialized hardware. Those headquarters and lab details appear in company materials and job postings, including on Built In Austin.
Who Owns 515 Congress and What Tenants Get
515 Congress is an approximately 268,000-square-foot Class A office tower owned by Newport Beach-based KBS Realty Advisors, with Stream Realty Partners handling leasing. Landlord materials note that KBS has put millions into renovations since 2015 and that the property offers street-level retail and tenant amenities aimed squarely at tech and other modern office users. Those building and leasing details are outlined in the property listing on LoopNet.
What It Signals for Downtown Austin’s Office Game
The high-profile headquarters and new marquee fit into a broader “flight to quality” trend, in which well-funded tech companies are snapping up premium, amenity-heavy office space even as the overall market deals with elevated vacancy. Local research shows Austin’s construction pipeline and availability remain significant, yet landlords report that Class A towers with modern perks continue to draw tenants. For more on the market backdrop, see the office report from Colliers.
