Stocks

Best AI Stocks to Buy in September 2025

Top Tech Giants Driving AI Growth: Key Stocks and Investments to Watch in 2025

Written By : K Akash
Reviewed By : Shovan Roy

Overview

  •  AI investments surge as tech giants like NVIDIA and Microsoft reshape computing and cloud services.

  • Oracle secures multi-billion-dollar contracts, boosting AI infrastructure and investor confidence.

  • Emerging players like CoreWeave and MongoDB expand AI cloud and data solutions across industries.

The artificial intelligence (AI) sector continues to be a focal point for investors in September 2025, driven by rapid advancements and increasing demand across industries. From established tech giants to emerging players, several companies are poised to benefit from the AI revolution. 

The best AI stocks to buy often come from companies leading in innovation. Here's a curated list of top AI stocks to consider:

NVIDIA Corporation (NVDA)

AI Investment: NVIDIA plans to spend up to $500 billion to build AI servers in the U.S. over the next four years, working with partners like TSMC. NVIDIA stocks remain a favorite due to their dominance in the AI chip market.

Key Projects:

  • Rubin Ultra: Next-generation GPU architecture with 1TB HBM4e memory, launching in 2027.

  • Feynman Architecture: Advanced AI setup designed to improve model training and inference.

  • NVIDIA leads in AI hardware, powering AI tasks across many industries.

Alphabet Inc. (GOOGL)

AI Investment: Alphabet has put over $13 billion into data centers and bought 38 AI companies, including DeepMind.

Key Projects:

  • Gemini AI Model: Advanced AI models used in Google Search and Ads.

  • Waymo: AI-powered self-driving cars.

  • YouTube: AI tools for recommending content and moderating videos.

Alphabet’s AI work spans search, self-driving cars, and content platforms.

Also Read: Top AI Stocks to Watch in the US Market (2025)

Microsoft Corporation (MSFT)

AI Investment: Microsoft is expected to spend approximately $80 billion in 2025 on AI-focused data centers. Microsoft Stocks continue to rise with the expansion of AI-driven services.

Key Projects:

  • Azure OpenAI Service: Platform for running large AI models for businesses.

  • Copilot: AI assistant built into Microsoft 365 to boost productivity.

  • AI Foundry: Environment for developing and running AI solutions.

Microsoft is strengthening its enterprise AI tools with Azure and productivity software.

Meta Platforms Inc. (META)

AI Investment: Meta will spend more than $600 billion on AI over the next three years.

Key Projects:

  • AI Studio: Platform to create customAI assistants.

  • Horizon Workrooms: VR collaboration with AI features.

  • Scale AI Investment: Possible $10 billion+ investment in Scale AI, a data-labeling company.

Meta is betting on AI to power VR, social media, and future AI platforms.

Broadcom Inc. (AVGO)

AI Investment: Broadcom has a $10 billion deal to supply AI chips to big tech companies.

Key Projects:

  • XPU Development: Specialized AI processors to compete with GPUs.

  • Data Center Infrastructure: Hardware for large AI setups.

Broadcom is building its position in AI hardware and enterprise infrastructure.

CoreWeave Inc. (CWBE)

AI Investment: CoreWeave signed a $6.3 billion deal with NVIDIA for cloud computing through 2032.

Key Projects:

  • AI Data Centers: GPU-powered setups for AI training and inference.

  • Spire Animation Studios: Real-time collaborative filmmaking using CoreWeave’s AI cloud.

CoreWeave is an emerging player in AI cloud services for large workloads.

Also Read: 5 Best AI Stocks to Invest in 2025

MongoDB Inc. (MDB)

AI Investment: Continues to invest to improve AI model performance.

Key Projects:

  • Atlas Vector Search: Fast search of vector embeddings for AI applications.

  • Agentic AI: AI for analyzing financial data and managing portfolios.

MongoDB’s flexible databases support AI work across industries.

Palo Alto Networks Inc. (PANW)

AI Investment: Bought Protect AI for over $500 million to strengthen AI cybersecurity.

Key Projects:

  • Protect AI: Platform protecting AI systems from attacks.

  • Cortex XSOAR: AI-driven platform for security automation and response.

Palo Alto Networks uses AI to tackle cybersecurity challenges for modern businesses.

Seagate Technology Holdings Plc (STX)

AI Investment: Invests in large storage solutions for AI workloads.

Key Projects:

  • Exos X20: 20TB hard drives built for AI and machine learning data.

  • Lyve Cloud: Storage platform designed for AI use.

Seagate benefits from AI’s growing data storage needs.

Oracle Corporation (ORCL)

AI Investment: Oracle recently announced four multi-billion-dollar contracts, as companies like OpenAI and xAI invest heavily to secure computing power for AI.

Key Projects:

  • Stargate LLC: Joint venture with OpenAI and SoftBank, planning up to $500 billion investment in US AI infrastructure by 2029.

  • Oracle Cloud Infrastructure: Scalable cloud services for AI workloads.

Oracle’s investments make it a key player in AI infrastructure, with its stock surging after the deals.

Conclusion

Long-term AI Investments could reshape global technology markets. The AI sector is growing quickly, with companies investing massive amounts to take advantage of AI technology. NVIDIA, Alphabet, and Microsoft lead with strong investments and innovative projects. 

Oracle’s recent multi-billion-dollar deals demonstrate the rapid expansion of the industry and the confidence of investors. These companies are worth watching in the evolving AI world.

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