# Sierra Ventures > Sierra Ventures is an early-stage venture capital firm based in San Mateo, California. Since 1982, Sierra has backed founders from inception to Series A, with checks up to $15M, across four sectors: AI Infrastructure, Vertical AI, Physical AI, and Frontier & Deep Tech. Sierra has raised 13 early-stage funds, invested more than $2 billion, and backed companies through 35 IPOs and more than 100 exits. The firm connects its founders with enterprise buyers and technical leaders through its CXO Advisory Board, Annual CXO Summit, Engineering & Product Leaders Council, and AI Lab Forum. ## About the firm - [About Sierra Ventures](https://www.sierraventures.com/about): Stage, sectors, track record, and frequently asked questions about the firm. - [Portfolio](https://www.sierraventures.com/portfolio): Sierra Ventures' portfolio of early-stage companies across AI Infrastructure, Vertical AI, Physical AI, and Frontier & Deep Tech. - [Team](https://www.sierraventures.com/team): Sierra's investment and operating team, made up of former entrepreneurs and operators. - [Press Kit](https://www.sierraventures.com/press-kit): Logos and official resources for media. ## Where we invest - [AI Infrastructure](https://www.sierraventures.com/ai-infrastructure): Model training, data platforms, developer tools, and the systems enterprises need to deploy AI at scale. - [Vertical AI](https://www.sierraventures.com/vertical-ai): Purpose-built AI for the workflows and domain expertise that define healthcare, legal, financial services, manufacturing, and beyond. - [Physical AI](https://www.sierraventures.com/physical-ai): Robotics, autonomous systems, and AI that operates where software meets physical complexity. - [Frontier & Deep Tech](https://www.sierraventures.com/frontier-deep-tech): Semiconductors, quantum, defense, and advanced materials, founded by researchers years ahead of the market. ## Enterprise network - [Enterprise Connectivity](https://www.sierraventures.com/enterprise-connectivity): How Sierra connects founders with enterprise decision-makers. - [CXO Advisory Board and Summit](https://www.sierraventures.com/cxo-advisory): A consortium of Global 1000 technology executives (CIOs, CTOs, CDOs, CMOs, CISOs) and Sierra's annual invitation-only CXO Summit. - [Engineering & Product Leaders Council](https://www.sierraventures.com/epl): A community of technology and product leaders from cutting-edge companies. - [AI Lab Forum](https://www.sierraventures.com/ai-labs): Connects Sierra's portfolio to major AI labs. ## Team - [Tim Guleri, Managing Partner](https://www.sierraventures.com/tim-guleri) - [Mark Fernandes, Managing Partner](https://www.sierraventures.com/mark-fernandes) - [Ben Yu, Managing Partner](https://www.sierraventures.com/ben-yu) - [Vignesh Ravikumar, Partner](https://www.sierraventures.com/vignesh-ravikumar) - [Shomik Ghosh, Partner](https://www.sierraventures.com/shomik-ghosh) - [Shashank Saxena, Venture Partner](https://www.sierraventures.com/shashank-saxena) - [Nkechi Iregbulem, Head of Inception](https://www.sierraventures.com/nkechi-iregbulem) - [Yasmin Zarabi, Chief Operating Officer](https://www.sierraventures.com/yasmin-zarabi) - [Anne Gherini, Chief Marketing Officer](https://www.sierraventures.com/anne-gherini) ## Insights and founder resources - [Insights](https://www.sierraventures.com/insights): Sierra Ventures news, insights, and interviews. - [Interviews](https://www.sierraventures.com/interviews): CXO interviews from Sierra Ventures. - [Founders' Stories](https://www.sierraventures.com/founders-stories): Stories from Sierra portfolio founders. - [Founder Playbooks](https://www.sierraventures.com/founder-playbooks): ASCEND, Sierra's founder resource center, with practical guides for early-stage founders. ## Contact - Email: info@sierraventures.com - Address: 1400 Fashion Island Blvd. Ste. 1010, San Mateo, CA 94404