Series D funding is a later stage of investment that startups seek after completing earlier rounds like Series A, B, and C. It typically occurs when a company needs additional capital to expand further, enter new markets, or prepare for an initial public offering (IPO). This round often involves venture capital firms, private equity investors, or existing investors providing significant funds to support the company's growth and scaling efforts.
Synonyms: Series D round, Series D investment, Late-stage startup funding, Startup Series D financing

Series D funding usually comes after a startup has demonstrated strong growth and has already raised money through previous rounds. Companies might pursue this round if they need more capital to accelerate growth, develop new products, or increase market share. Sometimes, it also helps a company improve its financial position before going public or being acquired.
Investors in Series D rounds often include venture capital firms that participated in earlier rounds, new venture capitalists, private equity firms, and occasionally strategic corporate investors. These investors look for companies with proven business models and clear paths to profitability or exit.
Raising Series D funding can provide startups with the resources to scale operations, hire more staff, and expand internationally. However, it may also mean giving up more equity and control to investors. The terms of Series D deals can be more complex, reflecting the company's advanced stage and higher valuation.