Billion Valuation

• Sierra, an AI customer experience startup, secured $950 million in a Series E funding round led by Tiger Global and Google Ventures on May 8, 2026, achieving a valuation exceeding $15 billion. • The round highlights the strength of high-growth vertical AI companies amid surging demand for agentic AI solutions in enterprise settings. • This funding victory underscores investor confidence in specialized AI applications, positioning Sierra as a leader in automating customer interactions.

• Berkshire Hathaway's cash and equivalents surged to $168 billion at the end of Q1 2026, its highest level in over a decade, as Warren Buffett continued to reduce equity holdings amid concerns over elevated asset valuations. • The conglomerate reduced its Apple stake by 8% during the quarter and trimmed Bank of America holdings further, citing a lack of compelling investment opportunities in current market conditions. • Investment income from fixed-income holdings generated $3.2 billion in the first quarter alone, demonstrating how Berkshire's massive cash reserve is now earning meaningful returns in a higher-rate environment.

• Silicon Valley-based Resolve AI secured $40M in Series A extension funding, boosting its valuation to $1.5B to establish Resolve AI Labs focused on AI models optimized for production environments. • The funding supports development of reliable AI systems tailored for enterprise-scale deployment in US tech sectors. • This round highlights investor confidence in Resolve AI's infrastructure for bridging research-to-production AI gaps amid booming demand.

• Elon Musk's xAI announced a $6 billion Series C funding round on April 19, 2026, led by Sequoia Capital, valuing the startup at $24 billion post-money. • Funds will expand the Colossus supercomputer in Memphis, Tennessee, to 300,000 Nvidia GPUs for Grok AI training. • Investment accelerates US AI infrastructure race, countering China's advances and supporting domestic chip production.

• Databricks announced a Series H funding round of $10 billion at a $43 billion valuation on April 18, led by existing investors including Andreessen Horowitz and Sequoia Capital, to accelerate development of its AI and data platform. • The funding will support expansion of Databricks' lakehouse architecture, which integrates data warehousing and data lakes, and fund aggressive hiring in engineering and sales across North America. • The round positions Databricks as one of the fastest-growing enterprise software companies and signals strong investor confidence in the competitive data infrastructure market dominated by Snowflake and others.

• Perplexity AI announced a Series D funding round of $500 million at an $8.5 billion post-money valuation on April 19, led by prominent venture capital firms and strategic investors including Nvidia and Saudi PIF. • The funding will support expansion of Perplexity's AI search engine capabilities, development of enterprise API offerings, and geographic expansion into European and Asian markets with localized language models. • The round positions Perplexity as a serious challenger to Google Search and reflects growing investor confidence in AI-powered search alternatives and conversational information retrieval platforms.

• Scale AI raised $1 billion on April 9, 2026, at $2.5 billion valuation from Accel and Founders Fund for US data labeling expansion. • Funding supports hiring 1,000 engineers in San Francisco to improve RLHF datasets for models like Llama 4. • Positions Scale as critical US AI infrastructure player, with CEO Alexandr Wang noting 'data is the new oil.'