Jeremy Heep

Jeremy is a leading cross-border litigator with broad international arbitration experience. Described as an “impressive trial counsel” by Chambers USA: America’s Leading Lawyers for Business, Jeremy also represents domestic and international clients through all stages of complex commercial disputes in U.S. courts. He is particularly focused on antitrust and international issues.

Jeremy, who is fluent in French, represents clients in matters venued in Canada, China, France, England, Hong Kong, Isle of Man, Germany, Switzerland, the Netherlands, India, Singapore, British Virgin Islands, and Mauritius. He has handled international arbitrations under most major institutional rules, including the China International Economic and Trade Arbitration Commission (CIETAC), the Hong Kong International Arbitration Centre (HKIAC), the London Court of International Arbitration (LCIA), the International Court of Arbitration (ICC), and the International Centre for Dispute Resolution (ICDR). He has served as lead trial counsel in numerous arbitrations, including prevailing on all claims and counterclaims in a six-week arbitration in Hong Kong. In 2026, Jeremy was named global chair of the Litigation and Dispute Resolution group at Lex Mundi, where he will lead efforts to connect litigators across a nonexclusive global network of independent law firms.

Jeremy has also been involved in landmark antitrust litigation matters in the U.S., including class actions. He is experienced in major industry sectors, including manufacturing, pharmaceuticals, industrials, and professional services.

Before entering private practice, Jeremy was a U.S. Department of Justice trial attorney who briefed and argued several cases in the Third, Sixth, and Ninth Circuits. He then spent two and a half years in Central Africa as director of the International Foundation for Election Systems (IFES) program in the Democratic Republic of Congo, where he managed a technical assistance program and provided advice on constitutional and electoral law reform.

Jeremy’s background includes serving in the U.S. Peace Corps, teaching as a high school teacher and environmental education volunteer, serving as a spokesperson for the U.S. Environmental Protection Agency’s Superfund program, and working as an elections supervisor in Bosnia.

Jeremy serves as co-chair of the Philadelphia Bar Association’s International Law Committee and as immediate past president of the French-American Chamber of Commerce. He teaches contract law at the University of Pennsylvania Carey Law School. Jeremy routinely writes and speaks on antitrust issues as author and lecturer, conducts training for clients nationally and internationally, and provides counseling on pricing and distribution issues.

The Legal 500 United States distinguished Jeremy as a “respected practitioner” who provides “thoughtful and thorough analysis of legal issues.”

International Arbitration and Cross-Border Litigation

• Managing (for more than 25 years) domestic and international litigation, and providing advice, counseling, and compliance training, for a French manufacturer of yeast for baking, taste, health care, and biotechnology applications. This includes representing a French client company and its Dutch subsidiary in proceedings in the Indian Supreme Court in 2025 after successfully coordinating legal efforts in High Court of Mumbai to obtain favorable judgment, with aspects of litigation arising in Netherlands, France, and Switzerland.
• Representing a famous apparel manufacturer in a New York-seated ICC international arbitration with its former distributor in Columbia. Obtained a partial award in 2025 against the other party for its failure to pay ICC costs.
• Representing a clay mining company in ICDR international arbitration against a contract partner in a dispute over the depletion of mining reserves.
• Represented in 2025 an Indian manufacturing company and its U.S. subsidiary in an ongoing New York-seated ICC Arbitration involving breaches of representations and warranties in a membership interest purchase agreement under Delaware law.
• Served as lead trial counsel in a successful expedited International Chamber of Commerce (ICC) arbitration in 2025 arising from a $172 million earnout dispute following the acquisition of a California company by a UK-based buyer.
• Secured a significant settlement in 2025 for a prominent Charlotte-based real estate developer, in a complex ICDR international arbitration dispute with a renowned British clearing, correspondent, and wholesale bank.
• Obtained a significant final award in 2024, serving as first chair for a German national in a shareholder dispute in ICDR arbitration seated in Philadelphia and in related litigation in the Eastern District of Pennsylvania (current).
• Prevailed in a six-week HKIAC final arbitration hearing in 2023 in Hong Kong, serving as lead trial counsel for a satellite technology company in a matter concerning the impact of U.S. trade regulations on contract and governance obligations.
• Served as lead trial counsel, winning a CIETAC arbitration seated in China on behalf of U.S.-based medical device manufacturer against its Chinese distributor, applying Chinese law and language (2022).
• Represented a generic pharmaceutical manufacturer in an ICC arbitration seated in Zurich over a failed collaboration agreement for the development and marketing of a new product (2021).
• Successfully coordinated legal efforts in the High Court of Mumbai to uphold large arbitral award in favor of UK-based client (2019).
• Served as lead trial counsel for global research institution in four-day ICC arbitration in Paris under Belgian law concerning IP rights arising from a European Union consortium agreement (2018).
• Represented a publicly traded U.S. company against its supplier in an International Chamber of Commerce (ICC) arbitration (2015).
• Served as lead trial counsel, obtaining significant quantum award for client following two-week damages hearing in London in 2014, and week-long liability hearing in Delhi, India in 2013, pursuant to rules of London Court of International Arbitration-India (LCIA-I), conducting key cross-examination and arguments.

Antitrust

• Representing a heavy-duty truck manufacturer since 2024 in multiple litigations in Nebraska, Illinois, and California involving the interplay of environmental and antitrust matters.
• Providing a French multinational manufacturer of specialty materials with strategic antitrust counseling and litigation advice for more than 20 years.
• Won an appeal in the Eleventh Circuit in 2023 after obtaining full summary judgment in December 2021 on all federal antitrust claims and related state law claims, which alleged a conspiracy between manufacturers and dealers of earth moving equipment to eliminate competing supplier. Int’l Constr. Prods. v. Ring Power Corp., et al., No. 22-10231, 2023 WL 7127515 (11th Cir. Oct. 30, 2023).
• Obtained a dismissal by U.S. Department of Justice Antitrust Division of its investigation of a Fortune 200 manufacturing company into an alleged cross-border no-poach agreement (2019).
• Obtained a full dismissal of $100 million antitrust claims alleging conspiracy between manufacturers and dealers of earth moving equipment to eliminate competing supplier. Int’l Constr. Prods. LLC v. Caterpillar Inc., et al., C.A. No. 15-108-RGA (D. Del. 2019).
• Obtained dismissal of antitrust claims against Volvo Construction Equipment asserting that original equipment manufacturers conspired to eliminate a seller, handling oral argument against plaintiff’s counsel David Boies – International Construction Products LLC v. Caterpillar Inc., No. 15-108-RGA, 2016 U.S. Dist. LEXIS 6826 (D. Del. Jan. 21, 2016), 2016 U.S. Dist. LEXIS 111174 (D. Del. Aug. 22, 2016); case was repleaded and settled favorably in 2017.
• Obtained dismissal of direct and indirect purchaser actions at certification stage, of class actions against Mack Trucks, Inc. and Volvo Trucks North America alleging a conspiracy to install a monopolist transmission supplier, Wallach v. Eaton Corp, Civ. Action 10-260 (D. Del, Dec. 6, 2017); In re Class 8 Transmission Indirect Purchaser Antitrust Litigation, 679 F. App’x 135 (3d Cir. 2017); In re Class 8 Transmission Indirect Purchaser Antitrust Litigation, 140 F. Supp. 3d 339 (D. Del. 2015).
• Obtained a full defense verdict following five-week jury trial for a major truck manufacturer in claims alleging price fixing and other violations of the Sherman Act, Toledo Mack v. Mack Trucks, Inc., No. 02-CV-04373 (E.D. Pa.) (2009).
• Represented the plaintiff corporation in a Sherman Act Section 2 monopolization claim in which the jury awarded $65 million (after trebling) – LePage’s Inc. v. 3M Co., 324 F.3d 141(3d Cir. 2003) (en banc).
• Designed and implemented a three-day antitrust and competition law training program for a multinational manufacturer based in France with operations in 60 countries, that included strategies for avoiding allegations of price fixing and other antitrust violations.

Commercial Litigation

• Representing a French active pharmaceutical ingredient manufacturer and its U.S. subsidiaries in major commercial litigation in Massachusetts, asserting claims for breach of contract and breach of the implied covenant of good faith and fair dealing.
• Obtained affirmative summary judgment in 2026 on liability and damages for a manufacturer of electric batteries. At the same time, fully defeated claims for wrongful termination. C&D Technologies, Inc. and Trojan Battery Company, LLC v. Elliott Auto Supply Co., Inc., d/b/a Factory Motor Parts, No. 23-CV-02608 (E.D. Pa.).
• Handled litigation for and providing ongoing advice and counseling to a French multinational glass and specialty construction materials manufacturer.
• Represented a French manufacturer of alpine ski chairlifts and integrated ski resort systems in U.S.-based arbitration proceedings and corporate transactions.
• Represented a French manufacturer of industrial transformers for use in nuclear power plants in domestic litigation in the U.S.
• Represented an international semiconductor company in internal investigation in 2022 in Mumbai, India, in matters involving allegations of potential fraud. [goes in int’l]
• Obtained dismissal of preliminary injunction motion in a business-to-business dispute, Secure Components, LLC v Christine Lutheran et al., Docket 2017-16652, ECF No. 90 (Mont. Cnty. C.C.P Mar. 12, 2018), following three-day hearing with multiple witnesses.
• Granted dismissal on summary judgment of multidistrict litigation class action against global pharmaceutical company alleging violations of RICO and various state consumer protection laws, In re Avandia Marketing, Sales Practices and Products Liability Litigation, No. 07-md-1871 (Dec. 7, 2017) (dismissal reversed; en banc petition pending).
• Obtained a temporary restraining order in Travis County, TX followed by a favorable settlement on behalf of a French company in an action involving claims for fraud and breach of contract. JST Transformateurs, S.A. v. Becker, GN-17-000172 (Travis County Jan. 17, 2017).
• Successfully defended an alleged breach of a joint venture agreement by a major U.S. University in Bangalore, India and Newark, NJ (2013).
• Obtained a full defense verdict in a multiweek bench trial in class action in Arapaho County, Colorado alleging nearly $1 billion in damages in alleged breach of contract case brought by alarm dealers against manufacturer, handling key witnesses at trial – Advantek Pro, Inc. v. ADT Services, Inc., No. 04-CV-587 (2010).
• Obtained a dismissal on summary judgment of 12 of 14 counts asserted against a national telemarketing company, including Lanham Act, false advertising, and breach of contract, followed by eve of trial dismissal as a matter of law of remaining two counts, resulting in dismissal of entire case; Medallion Products v. McAlister, N.D. Ill., No. 06-2597; successfully handled related class action (2009).
• Achieved the successful termination of independent heavy duty truck distributor for misappropriation of trade secrets, including full hearing and multiple appeals, Mack Trucks v. Motor Vehicle Dealers Bd., 2006 Ohio 2748 (Ohio Ct.App. 2006).

• Legal 500 United States for Antitrust: Civil Litigation/Class Actions: Defense (2023, 2025)
• Chambers USA: Litigation: General Commercial, Pennsylvania (Philadelphia) (2023-2025)
• Highly rated in Chambers USA: America’s Leading Lawyers for Business (2018-2019)
• Honors, Capital Pro Bono Honor Roll, D.C. Access to Justice Commission and the D.C. Bar Pro Bono Center (2022-2024)
• Listed in Who’s Who Legal: Competition (2019-2020)