# Arena

Startup profile on Capital Atlas: https://capitalatlas.ai/startups/arena

- Industry: Software
- Headquarters: San Francisco, US
- Website: www.arena.ai/
- Total disclosed funding: $250M
- Latest round: Series A (Jan 6, 2026)
- Investors on record: 8

## About

Based in the US, LMArena provides an open platform for advanced artificial intelligence solutions that enhance operational efficiency and support data-driven decision-making across various industries.LMArena, founded in 2025 and headquartered in San Francisco, US, focuses on developing AI technologies to improve business processes. In January 2026, LMArena raised USD 150 million in venture funding co-led by returning investors Felicis Ventures and UC Ventures, with participation from other returning investors Andreessen Horowitz, The House Fund, Kleiner Perkins, Lightspeed Venture Partners, and Laude Ventures. New investor LDV Management also participated in the round. The venture funding values LMArena at USD 1.7 billion post-money. Founded by a team with prior experience in technology ventures, LMArena aims to leverage its recent funding to expand its product offerings and market reach.LMArena.ai specializes in developing advanced artificial intelligence solutions designed to enhance operational efficiencies and support data-driven decision-making. Their core offerings include AI-driven analytics platforms and machine learning models that optimize business operations in sectors such as healthcare, finance, and logistics. The technology addresses complex challenges like predictive maintenance, fraud detection, and patient outcome optimization. LMArena.ai serves a diverse clientele, including large enterprises and SMEs in North America and Europe, with a focus on customizing solutions to meet specific industry needs.LMArena.ai generates revenue through a subscription-based model, allowing clients to access a range of AI-powered tools and services for a recurring fee. This model supports ongoing updates and customer support, enhancing client retention. The company’s primary products, including proprietary analytics platforms and consulting services, are priced based on usage tiers, catering to both small businesses and large corporations. Collaborations with various industries facilitate market penetration and ensure a consistent revenue stream through direct engagements and B2B partnerships, strengthening their market presence. The company plans to utilize the January 2026 funding to support ongoing and transparent third-party assessments that promote the responsible expansion of AI.

## Funding rounds

- Series A, Jan 6, 2026, $150M — Kleiner Perkins, Lightspeed Venture Partners, Andreessen Horowitz, Felicis Ventures, UC Ventures, LDV Management, The House Fund, Laude Ventures
- Seed, May 21, 2025, $100M — Kleiner Perkins, Lightspeed Venture Partners, Andreessen Horowitz, Felicis Ventures, UC Ventures, The House Fund, Laude Ventures

## Investors

- Kleiner Perkins (https://capitalatlas.ai/funds/kleiner-perkins) — Seed, Series A
- Lightspeed Venture Partners (https://capitalatlas.ai/funds/lightspeed-venture-partners) — Seed, Series A
- Andreessen Horowitz (https://capitalatlas.ai/funds/andreessen-horowitz) — Seed, Series A
- Felicis Ventures (https://capitalatlas.ai/funds/felicis-ventures) — Seed, Series A
- UC Ventures (https://capitalatlas.ai/funds/uc-ventures) — Seed, Series A
- The House Fund (https://capitalatlas.ai/funds/the-house-fund) — Seed, Series A
- Laude Ventures (https://capitalatlas.ai/funds/laude-ventures) — Seed, Series A
- LDV Management (https://capitalatlas.ai/funds/ldv-management) — Series A