
Though the first GLP-1 agonists date back more than 20 years, it's only in the last couple of years that they began to dominate the pharmaceutical space for their massive potential as weight loss drugs. With some estimates placing the market at nearly $63 billion in early 2026, forecasts call for the GLP-1 industry to roughly triple over the coming decade.
It's no surprise that the biopharma industry is racing to capture a share of that growth as GLP-1 use accelerates. Dozens of new GLP-1 receptor agonist medications are in development across nearly as many firms—and it's not just major pharma names that are getting involved, either. The medicine is evolving quickly, having already expanded to include oral treatments with the first-ever FDA approval for a GLP-1 pill for weight loss for Wegovy at the end of 2025. Amid the significant turbulence and hype surrounding this fast-growing space, the companies below may be particularly interesting to watch.