Crowell & Moring Advises Quantinuum on $1 Billion Joint Venture with Qatar’s Al Rabban Capital

Doha – June 4, 2025: Crowell & Moring advised Quantinuum, the world’s largest integrated quantum computing company formed by the merger of Cambridge Quantum and Honeywell Quantum Solutions, on its $1 billion joint venture with Al Rabban Capital, a prominent Qatari investment group.

The transaction involved sophisticated corporate, regulatory, compliance and intellectual property considerations, including export controls and foreign investment issues. This milestone partnership highlights Crowell & Moring’s wide breadth of expertise in corporate transactions and regulatory advisory across global markets and reinforces the firm’s commitment to enabling transformative technology partnerships worldwide.

The agreement was signed during President Donald J. Trump’s recent visit to Qatar, underscoring the strategic alignment of U.S.-Qatar partnerships in emerging technologies. The joint venture will invest significantly in cutting-edge quantum technologies and local workforce development, driving growth and innovation in both countries. The transaction was highlighted in the White House Fact Sheet as part of President Trump’s $1.2 trillion economic commitment to Qatar.

A cross-border team from Crowell, led by Charbel Maakaron, Catherine Martinez, Adelicia Cliffe, and Sam Cooper across offices in Doha, DC and London managed the deal’s complex legal structuring.

About Crowell & Moring LLP

Crowell & Moring is an international law firm with operations in the United States, Europe, MENA, and Asia. Drawing on significant government, business, industry, and legal experience, the firm helps clients capitalize on opportunities and provides creative solutions to complex regulatory and policy, litigation, transactional, and intellectual property issues. The firm is consistently recognized for its commitment to pro bono service, as well as its comprehensive programs and initiatives to advance the professional and personal development of all members of the Crowell community.

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