Which companies are actively use Java servlets and why?

Here's what actively uses Java servlets (directly or via Spring MVC/JAX-RS on top of a servlet container), based on current sources plus well-known industry patterns: Banks / financial services The Spring Framework powers the core banking systems of HDFC, ICICI, Axis, and SBI. Financial services and insurance remain Java's deepest enterprise verticals, with core systems for trading, banking, claims processing, and policy administration overwhelmingly running on the JVM, mainly through Spring MVC/Spring Boot (servlet-based) for core banking, trading systems, fraud detection, and regulatory reporting. IT services / consultancies that build these systems TCS, Infosys, Capgemini, LTIMindtree, Persistent Systems, and other IT majors post large numbers of Java/Spring roles specifically to build and maintain banking and enterprise systems for their clients. Broader adoption numbers As of 2026, 3,013 verified companies use Java Servlet Technology, with the top industries being Manufacturing, Finance, Retail, and Insurance, and the majority of these companies are based in the United States. Why they still use it (in short): Legacy + stability — one financial institution partnered with a Java consultancy across multiple phases from 2011 to 2025, modernizing COBOL-based batch processing with Spring Batch — banks don't rip out decade-old, working systems. Deep enterprise reliance — Azul's 2025 State of Java Survey found 99% of surveyed organizations actively use Java, and nearly 70% reported that more than half of their applications are built with Java or run on the JVM. Regulatory/compliance fit — Spring Security + servlet-based session/transaction handling aligns well with audit and compliance needs (as covered earlier). Talent pool — huge existing base of Java/Spring engineers, especially in banking tech hubs. One honest caveat: most of these companies use servlets indirectly, through Spring MVC/Spring Boot (which runs on a servlet container like Tomcat by default), rather than writing raw HttpServlet code — but structurally, it's still the same underlying request-handling model. read less

Thousands of enterprise companies actively use Java Servlet technology, though rarely through writing "pure" servlet code. Instead, servlets serve as the hidden, foundational bedrock embedded inside modern frameworks like Spring Boot (Spring MVC) and web servers like Apache Tomcat -------------------------------------------------------------------------------------------------------------- • E-Commerce & Retail Giants: Companies like Alibaba (handling over 176 million visits a day via Tomcat), Amazon, and Walmart rely heavily on servlet-based architectures to power high-traffic shopping platforms and backend inventory systems. --------------------------------------------------------------------------------------------------------------• Financial Services & Banking: Major institutions and IT consultancies—including TCS, Infosys, and Capgemini—maintain core systems for trading, fraud detection, and regulatory reporting that run on servlet-driven JVM infrastructure.• Streaming & Tech Platforms: Netflix runs its massive backend microservices ecosystem using Spring Boot on the JVM, which fundamentally relies on embedded servlet containers. Other tech giants like Oracle (via WebLogic), Apple, and Twilio continue utilizing the technology across cloud and heritage read less