Suite 4400
370 Seventeenth Street
Denver, CO 80202-1370

Our Denver office has been an integral part of the firm's national practice since it opened in 1980. Our Denver lawyers work with national, regional, and Denver-based clients on matters including commercial litigation, business disputes, product liability and pharmaceutical litigation, mergers and acquisitions, corporate finance, antitrust litigation, and environmental, energy, federal lands, and Native American matters, as well as intellectual property law. The Denver office handles all stages of litigation including trials and appellate work, and business matters ranging from emerging growth company financings to large M&A and corporate finance transactions.

Our lawyers work with a diverse mix of clients—health care companies, technology companies, energy companies, pharmaceutical and consumer products companies, airlines, private equity firms, recreation and resort companies, financial services companies, and other major corporations. In addition, we work with public agencies, developers, Native American tribes, and individuals. We have played a lead role in representing clients in large commercial disputes, both as plaintiffs and defendants, all the way through trial, including DaVita Inc. and DCP Midstream. We have played a lead role in multijurisdictional mass tort litigation, including trials in jurisdictions that are considered hostile to corporate defendants. This has included representing Wyeth in both diet drug and hormone therapy cases and Philip Morris in smoking and health cases. We played the lead role in a number of recent litigation victories, including more than $100 million in damages awarded by the US Court of Federal Claims to our client, a decommissioned nuclear power plant, and a decertification of a nationwide class action on behalf of a major international retailer. The Denver office has represented the Hopi Tribe since 1986 in litigation and administrative proceedings concerning the tribe's land rights, said to be the largest quiet-title action in the US. Our corporate and finance lawyers represent large public and private equity-backed exploration and production companies, significant private equity funds and investors, a major real estate-focused asset management firm, and several growing technology businesses.

The Denver office makes a substantial contribution to our firmwide pro bono efforts. Lawyers in our Denver office have achieved recent successes in the areas of family law, indigent rights, mental health care treatment, land use, veterans' rights, and an injunction against the state's use of improper requirements to deny driver's licenses to Colorado citizens. As a result of this work, the Colorado Lawyers Committee named us "Law Firm of the Year," and we have been recognized by the Colorado Supreme Court for our pro bono efforts in the state.


Colorado Supreme Court Pro Bono Recognition (2006-2018)

For the 12th consecutive year,Colorado Supreme Court Pro Bono Commitment the Denver Office of Arnold & Porter has been recognized by the Colorado Supreme Court for performing at least 50 hours of pro bono legal service per attorney (pro-rated for part-time attorneys), primarily for the indigent and/or organizations serving indigent people. Recognized firms also commit to valuing attorney pro bono hours for purposes of attorney evaluation, advancement, and compensation as the firm would value compensated client representation.


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