Anysphere

Anysphere is the company that builds Cursor, a coding tool used by programmers. It is unusual among AI startups in that it publishes its funding news not on a separate corporate site but on Cursor's own blog, under the name of the Cursor Team ^[1]. Those posts are the main public record of how the company grew from a small tool into one of the larger businesses in AI-assisted programming.

What the company says its product does

In its first funding post, Anysphere described its systems as including state-of-the-art next-edit-prediction models and multi-billion-file retrieval ^[1]. Next-edit prediction is the part of a coding assistant that guesses the change a programmer is about to make, rather than only finishing the line being typed. Retrieval at that scale means the tool can search an extremely large body of code to find the parts relevant to what the programmer is working on.

Series A

On 22 August 2024 the company announced a $60m Series A. The round came from Andreessen Horowitz, Thrive Capital and OpenAI, along with Jeff Dean, Noam Brown and the founders of Stripe, GitHub, Ramp, Perplexity and OpenAI ^[1]. At that point Cursor had more than 40,000 customers, spread across startups, research labs and enterprises ^[1].

Series B

On 16 January 2025 Anysphere announced a $105m Series B from Thrive Capital, Andreessen Horowitz, Benchmark and existing investors ^[2]. The post said Cursor was used by millions of programmers and that its models edited over a billion characters a day ^[2]. It also said the business had exceeded $100m in recurring revenue ^[2].

Series C

On 6 June 2025 the company raised $900 million at a $9.9 billion valuation, from Thrive, Accel, Andreessen Horowitz and DST ^[3]. That announcement put Cursor above $500 million in annual recurring revenue and said it was used by over half of the Fortune 500, naming NVIDIA, Uber and Adobe as examples ^[3].

Series D

On 13 November 2025 Anysphere announced a $2.3 billion Series D at a $29.3 billion post-money valuation ^[4]. The post said the team had grown to over 300 engineers, researchers, designers and operators ^[4]. It also said the company had crossed $1 billion in annualized revenue and counted millions of developers as customers ^[4]. New investors in the round were Coatue, NVIDIA and Google, joining Accel, Thrive and Andreessen Horowitz ^[4].

Where it stands

The four announcements trace a steep curve in a little over a year. The customer base went from more than 40,000 customers in August 2024 ^[1] to millions of programmers by January 2025 ^[2], and by June 2025 more than half of the Fortune 500 were using the product ^[3]. Reported revenue moved from above $100m in recurring revenue ^[2] to above $500 million in annual recurring revenue ^[3] and then past $1 billion in annualized revenue ^[4]. The valuation rose from $9.9 billion in June 2025 ^[3] to $29.3 billion post-money in November 2025 ^[4], and the investor list expanded from venture firms to include OpenAI early on ^[1] and later NVIDIA and Google ^[4].