TEAM
Castañeda + Heidelman LLP is a boutique law firm with a national presence serving businesses and nonprofits with a focus on litigation, investigations, employment, regulatory compliance, and intellectual property/data privacy.
We are bringing together highly experienced attorneys in major cities with top-tier backgrounds who share our core values and commitments to the deeper aspects of life.
We believe doing so provides our clients with responsive, practical, and sophisticated solutions while creating a collaborative and entrepreneurial law firm where both clients and partners can thrive.
OUR TEAM
PARTNER
Juan Castañeda
Juan Castañeda is an expert in complex corporate internal investigations, an experienced trial attorney and legal advisor and strategist for companies and individuals through the United States.
Juan gained his investigation and litigation experience while serving as an Assistant U.S. Attorney with the United States Attorney’s Office for the Southern District of California as well as through top-tier national firms, Sheppard Mullin and Mintz Levin.
His expertise in internal investigations is extensive and includes conducting over 15 years of corporate internal investigations...
PARTNER
Josh Heidelman
Josh Heidelman brings a breadth of experience to the table, having spent several years in private practice at AmLaw 100 law firms followed by more than five years in the role of General Counsel for a major global nonprofit.
This combination brings together the benefits of an in-house veteran who understands the need for practical business solutions and a hands-on litigator whose experience includes first-chair federal court trial work.
Josh is an AV Preeminent rated lawyer through Martindale-Hubbell and has been recognized by Illinois Super Lawyers…
PARTNER
Rob Dunikoski
Rob Dunikoski is a former federal prosecutor with extensive litigation and investigations experience who provides sound advice and counsel on high-stakes matters.
Before joining Castañeda + Heidelman, Rob served as a senior counsel for the U.S. Department of Homeland Security. Earlier in his career, he clerked for U.S. District Judge Jorge A. Solis, prosecuted federal criminal cases at the U.S. Attorney’s Office for the Northern District of Texas, and practiced in DLA Piper’s Commercial Litigation group…
PARTNER
Ryan June
Ryan June is a strategic legal advisor with complex commercial litigation and corporate internal investigations experience at an Am Law 50 firm, as well as dispute resolution, intellectual property, and corporate counseling and transactional experience at a major global media and higher education nonprofit. Ryan has a proven record of delivering high quality, yet practical and client-centered solutions to complex legal problems.
Ryan’s private practice experience started at the international law firm Winston & Strawn LLP. There, he represented Fortune 500 and other companies in the insurance, pharmaceutical, manufacturing, banking, and agriculture sectors in various litigation and dispute resolution proceedings, including class…