Anthropic is shown to have recorded the fastest growth in the market for enterprise artificial intelligence (AI) tools. Companies are also increasingly adopting multiple services for different tasks rather than concentrating on a single AI platform.

On July 23 (local time), Japan's ITmedia reported that U.S. identity management company Okta analysed anonymised access data from more than 20,000 companies using its services and released the status of AI tool use inside companies. The survey period covers four years from June 2022 to June 2026. Okta compared AI tool growth rates based on net increases in corporate accounts during that period.

On a relative index that sets Anthropic's growth rate at 100, OpenAI scored 66.9, Google Workspace 59.8, GitHub 56.6 and Cursor 42.4. That means Anthropic outpaced other major services by a wide margin in the pace of new corporate account growth over the past four years.

The tally focused on AI tools used by knowledge workers and software developers. The scope included foundation models and developer tools, enterprise search, collaboration and productivity services, voice transcription and meeting AI, and creative product suites. By contrast, work record systems used by specific departments, AI delivered via cloud infrastructure, and cybersecurity AI were excluded from the survey.

Growth rates and actual penetration showed different results. By number of corporate accounts, Microsoft 365 was the largest, followed by Google Workspace in second place. With Microsoft 365 securing the broadest corporate customer base, Google Workspace is quickly narrowing the gap. Anthropic stood out in the pace of new adoption, but the influence of existing productivity platforms remains strong in the overall installed base.

Anthropic's growth accelerated further this year. Anthropic's number of corporate accounts surged after January 2026, while growth for OpenAI and Cursor was shown to have become relatively more moderate. Okta marked separately in its chart fast-growing companies whose customer growth rate increased by more than fourfold. Anthropic was classified as a service with a notable recent influx of corporate customers.

Companies' approach to adopting AI was also far from being centred on a single platform. About 57 percent of the surveyed companies were using at least two AI platforms at the same time. The analysis said companies are expanding a so-called "right tool for the right job" approach, combining different AI services depending on work purposes such as collaboration, development, search, meetings and content creation. Rather than assigning all work to one service, they keep existing productivity tools while adding new foundation models or developer tools.

The results show the enterprise AI market is moving in a competitive structure of multiple platforms rather than a winner-takes-all outcome by a single vendor. Microsoft 365 and Google Workspace are expanding their corporate presence by leveraging a large existing account base, while Anthropic showed the strongest recent rise in adoption speed. OpenAI and Cursor also remained in the top tier, but their recent increases in corporate accounts were shown to have become somewhat more moderate.

In the enterprise AI market ahead, key competitive indicators are expected to include not only total account numbers but also the pace of adoption by actual work tasks and the share of multi-platform deployments that use several platforms together.