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Digital Realty to buy Alexandria VC firm founded by Warner

Reported by Virginiabusiness
Jun 25, 2026· 2 min read
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Key Takeaways
  • • Digital Realty is acquiring Alexandria-based Columbia Capital for up to $775 million, with an initial payment of approximately $485 million ($45 million cash plus 2.3 million shares) and contingent earnout of up to $290 million tied to performance milestones.
  • • Columbia Capital, founded by U.S. Sen. Mark Warner in 1989 (though he has not been involved for over two decades), has raised more than $9 billion in commitments and maintains a portfolio focused on communications, technology, and digital infrastructure investments.
  • • The acquisition expands Digital Realty's investment platform and positions the data center REIT to capitalize on growing demand for AI-related infrastructure by gaining expertise in adjacent digital infrastructure sectors.
  • • Columbia Capital's institutional investor base includes sovereign wealth funds, pension funds, insurance companies, and endowments, representing a diversified LP network that Digital Realty can leverage for its private capital initiatives.
  • • Operational details remain unclear, including employee headcount, whether Columbia Capital will retain its Alexandria headquarters, and any planned leadership transitions.
Summary
Digital Realty, a Texas-based data center operator and real estate investment trust, announced plans to acquire Columbia Capital, an Alexandria venture capital firm, in a transaction valued at up to $775 million. According to SEC filings, Digital Realty will initially pay approximately $485 million, comprising $45 million in cash and roughly 2.3 million shares of common stock. The deal structure includes an additional performance-based component of up to $290 million in cash or, at Digital Realty's discretion, 1.46 million additional shares contingent on achieving specified milestones.

Columbia Capital was founded in 1989 by U.S. Senator Mark Warner, though he has maintained no active role with the firm for more than two decades. The venture capital platform has successfully raised more than $9 billion in commitments from a diverse institutional base including sovereign wealth funds, pension funds, insurance companies, and endowments. The firm's investment thesis centers on communications, technology, and digital infrastructure sectors, with a track record that includes early-stage investments in companies such as Nextel.

Digital Realty's acquisition strategy reflects broader industry positioning around artificial intelligence infrastructure demand. The company characterizes the Columbia Capital acquisition as an expansion of its investment expertise and exposure to adjacent digital infrastructure sectors, indicating a shift toward integrated investment platforms that combine real estate operations with private capital deployment. This aligns with Digital Realty's broader infrastructure development initiatives, including recent announcements regarding a two-gigabyte development site in Kansas City and plans to increase ownership in Teraco.

As of the announcement, critical operational questions remained unanswered, including the number of employees transferring to Digital Realty, the geographic location of Columbia Capital's future operations, and planned changes to firm leadership. Neither company provided immediate comment on these matters.

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Sources

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AlphaMaven summarised this story from the reporting below. Each link opens the original article.

Virginiabusiness Digital Realty to buy Alexandria VC firm founded by Warner