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Klaviyo Expands Boston Headquarters to More Than 250K SF

Marketing technology company Klaviyo is expanding its Boston headquarters, signing a lease for 256,000 square feet at 125 Summer St., the 22-story Financial District building where it has occupied 160,000 square feet. The Boston Business Journal reported that the expansion comes at a time when many other tenants in the tech sector have cut back on office space.

Landlord Oxford Properties has made 125 Summer St. into something of a tech hub, reported the Business Journal. Other tenants include Analog Devices and medical technology provider Haemonetics. The building is nearly 90% occupied.

“Klaviyo committing to more space for a longer term at 125 Summer St. clearly reflects the high quality of our asset and our conviction in the continued demand for centrally located, sustainable buildings focused on curated employee experiences,” Matthew Polhemus, VP of leasing at Oxford, said in a statement.

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About Paul Bubny

Paul Bubny serves as Senior Content Director for Connect Commercial Real Estate, a role to which he brings 16-plus years’ experience covering the commercial real estate industry and 30-plus years in business-to-business journalism. In this capacity, he oversees daily operations while also reporting on both local/regional markets and national trends, covering individual transactions across all property types, as well as delving into broader subject matter. He produces 7-10 daily news stories per day and works with the Connect team and clients to develop longer-form content, ranging from Q&As to thought-leadership pieces. Prior to joining Connect, Paul was Managing Editor for both Real Estate Forum and GlobeSt.com at American Lawyer Media, where he oversaw operations at both publications while also producing daily news and feature-length articles. His tenure in B2B publishing stretches back into the print era, and he has served as Editor in Chief on four national trade publications. Since 1999, Paul has volunteered as the newsletter editor of passenger rail advocacy groups (one national, one local).

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