AbbVie Inc. vs Amgen Inc.: Strategic Comparison

This in-depth comparison examines AbbVie Inc. and Amgen Inc. across revenue, market value, business model, competitive positioning, and long-term growth strategy. Whether you are researching AbbVie Inc. on its own, evaluating Amgen Inc., or weighing the two companies side by side, the breakdown below highlights where each company leads and where the gap between AbbVie Inc. and Amgen Inc. is widest.

On the headline numbers, AbbVie Inc. reports annual revenue of $61.2B against $36.8B for Amgen Inc., while their respective market capitalizations stand at $465.8B and $228.2B. AbbVie Inc. is headquartered in United States and Amgen Inc. operates from United States, and those different home markets shape how each company competes.

AbbVie Inc.: AbbVie became an independent public biopharmaceutical company in January 2013 after Abbott Laboratories separated its research-based pharmaceutical business. Humira initially dominated its portfolio. AbbVie has since added Pharmacyclics, Allergan, ImmunoGen, and Cerevel and now reports major portfolios in immunology, neuroscience, oncology, and aesthetics.

Amgen Inc.: Amgen is one of the companies that created the biotechnology industry. Instead of synthesizing small-molecule drugs, it engineers living cells to make complex proteins, an approach it first commercialized with Epogen in 1989. Based in Thousand Oaks, California, it is best known for medicines in bone health, inflammation, cardiovascular disease and kidney disease, and since the 2023 Horizon acquisition in rare disease. Fiscal 2025 revenue was US$36.8 billion across a portfolio in which 14 products each sold more than US$1 billion, although several of the older brands are now losing both price and volume.

AbbVie Inc. and Amgen Inc. pursue distinct approaches to generating revenue, and understanding how each company operates is the foundation of any fair comparison between AbbVie Inc. and Amgen Inc..

AbbVie Inc. business model: AbbVie earns revenue from global sales of prescription medicines and Allergan Aesthetics products. Its FY2025 portfolios were led by immunology at $30.406 billion, neuroscience at $10.767 billion, oncology at $6.655 billion, and aesthetics at $4.860 billion. The company funds internal research and supplements its pipeline through licensing and acquisitions.

Amgen Inc. business model: Amgen operates a high-risk, high-reward biopharmaceutical business model. It spends heavily on research to discover and engineer new biologic drugs: US$7.3 billion in fiscal 2025, or 20.7% of product sales. Once a drug is approved by the FDA, Amgen secures a patent, granting them a temporary monopoly to sell the drug at a premium price. Because biologic drugs are grown from living cells rather than chemically synthesized, they are much harder for competitors to copy, resulting in slightly longer and more defensible monopolies than traditional pills.

The durability of a company's moat often decides long-term winners. Here is how the competitive advantages of AbbVie Inc. stack up against those of Amgen Inc..

AbbVie Inc. competitive advantage: AbbVie's scale rests on its immunology portfolio, specialist commercial infrastructure, approved products across several therapeutic areas, and acquired oncology, neuroscience, and aesthetics assets. Those strengths are offset by patent-expiration, clinical-development, safety, reimbursement, and pricing risks described in its Form 10-K.

Amgen Inc. competitive advantage: Amgen's main competitive advantage is experience making complex biologics at commercial scale, which it has done continuously since Epogen launched in 1989. Producing a glycosylated protein or a monoclonal antibody to a consistent specification requires validated facilities, process know-how and a regulatory record that take years to build, which is also why the company can turn the same capability toward biosimilars of competitor products. Its balance sheet lets it buy late-stage assets rather than rely only on internal discovery: Onyx, Otezla, Five Prime, ChemoCentryx and Horizon together cost about US$57 billion between 2013 and 2023.

Future prospects matter as much as current results. The growth strategies below explain how AbbVie Inc. and Amgen Inc. each plan to expand from here.

AbbVie Inc. growth strategy: AbbVie is expanding approved uses and commercial reach for Skyrizi and Rinvoq while investing in oncology and neuroscience. ImmunoGen added Elahere and antibody-drug conjugate programs, Cerevel added clinical-stage neuroscience programs, and Allergan added Botox, Vraylar, migraine products, eye care, and aesthetics.

Amgen Inc. growth strategy: Amgen's growth plan has two parts: scale the newer medicines and buy what the pipeline does not supply. Recent launches and acquired products drove the 10% revenue growth in fiscal 2025, with Tezspire up 52% to US$1.48 billion, Repatha up 36% to US$3.02 billion, Evenity up 34% to US$2.10 billion, Uplizna up 73% to US$655 million and Imdelltra reaching US$627 million in its second year. The company is pushing into obesity with MariTide, now in six Phase 3 MARITIME studies, and runs a biosimilars business that produced about US$3.0 billion of fiscal 2025 sales across Pavblu, Mvasi, Amjevita and Wezlana.

A closer look at the financial trajectory of AbbVie Inc. and Amgen Inc. rounds out the comparison.

AbbVie Inc.: AbbVie reported $61.160 billion of FY2025 net revenue and $4.226 billion of net income. Skyrizi and Rinvoq generated $25.866 billion combined, while Humira declined to $4.540 billion after U.S. biosimilar entry. The 2020 Allergan acquisition added neuroscience and aesthetics revenue, and the 2024 ImmunoGen and Cerevel acquisitions added oncology and neuroscience assets.

Amgen Inc.: Amgen is a cash-generative business with high product gross margins. In fiscal 2025 it reported US$36.8 billion of total revenues, US$7.7 billion of GAAP net income, a 25.8% GAAP operating margin, US$8.1 billion of free cash flow and US$5.1 billion of dividends paid. Its results used to depend on a few large franchises, first Epogen and Aranesp, then Enbrel. As those matured Amgen bought revenue instead: Onyx in 2013, Otezla in 2019 and Horizon Therapeutics for US$27.8 billion in 2023. That last deal is also the main reason for the balance sheet it now carries, with US$54.6 billion of debt outstanding at December 31, 2025, debt leverage of about 3.2 times EBITDA and US$2.8 billion of net interest expense in fiscal 2025.