# Greylock's Big Data & Analytics Investments: 12 Startups in Its Portfolio (2026) > The 12 Big Data & Analytics startups Greylock has backed, by stage: $1.1B raised between them. From the rounds we track; updated nightly. Source: https://millionrounds.com/portfolio-maps/greylock-partners-big-data-analytics-portfolio (Millionrounds; every figure on the page links to its filing or article) ## Series C and later 4 - [Sumo Logic](https://millionrounds.com/company/sumo-logic) - [Actifio](https://millionrounds.com/company/actifio) - [mParticle](https://millionrounds.com/company/mparticle) - [*D* Drobo](https://millionrounds.com/company/drobo) ## Series B 3 - [Rockset](https://millionrounds.com/company/rockset) - [Onehouse](https://millionrounds.com/company/onehouse) - [GrowingIO](https://millionrounds.com/company/growingio) ## Series A 3 - [Atomic](https://millionrounds.com/company/atomic) - [*AL* Attic Labs](https://millionrounds.com/company/attic-labs) - [WEbook](https://millionrounds.com/company/webook) ## Pre-seed and seed 2 - [*F* Freshplum](https://millionrounds.com/company/freshplum) - [*T* Tabula](https://millionrounds.com/company/tabula) ## Segment by segment ### Series C and later 4 startups · $905M raised - [**Sumo Logic**](https://millionrounds.com/company/sumo-logic) Sumo Logic turns insights into action by enabling customers to deliver reliable and secure cloud-native applications through its S United States $340M - [**Actifio**](https://millionrounds.com/company/actifio) Actifio delivers enterprise data-as-a-service to global enterprise customers and service provider partners. United States $308M - [**mParticle**](https://millionrounds.com/company/mparticle) A real-time, end-to-end customer data platform that turns customer data into customer joy. United States $211M - [*D* **Drobo**](https://millionrounds.com/company/drobo) Drobo is a computer data storage company that produces external storage devices for computers for businesses and individuals. United States $47M ### Series B 3 startups · $131M raised - [**Rockset**](https://millionrounds.com/company/rockset) Rockset is a real-time indexing database that enables companies to build data applications for the cloud. United States $66M - [**Onehouse**](https://millionrounds.com/company/onehouse) Onehouse is a cloud-native technology company founded in 2021 by Vinoth Chandar, the creator of Apache Hudi. United States $35M - [**GrowingIO**](https://millionrounds.com/company/growingio) GrowingIO is a data intelligence growth platform based in Beijing, founded in 2015. China $30M ### Series A 3 startups · $68M raised - [**Atomic**](https://millionrounds.com/company/atomic) Atomic Financial is a FinTech and Banking Technology company based in Salt Lake City, Utah, founded in 2019. United States $55M - [*AL* **Attic Labs**](https://millionrounds.com/company/attic-labs) United States $8.1M - [**WEbook**](https://millionrounds.com/company/webook) WEbook is an online community for writers to share work, and give and receive feedback from other writers and readers. United States $5.0M ### Pre-seed and seed 2 startups · $6.4M raised - [*F* **Freshplum**](https://millionrounds.com/company/freshplum) Freshplum's goal is to bring the decision-making power of data science to companies who sell goods and services electronically. United States $3.9M - [*T* **Tabula**](https://millionrounds.com/company/tabula) Using the power of big data to improve information access in higher education. United States $2.5M **How this map is made.** Every startup here works in Big Data & Analytics and has raised money in a round we track that names Greylock as an investor. Each sits under the stage of its latest round. Rebuilt nightly; updated 15 November 2026. ## More portfolio maps [All portfolios](https://millionrounds.com/portfolio-maps) [Sector portfolio **Greylock's AI portfolio** 63 startups · $13B](https://millionrounds.com/portfolio-maps/greylock-partners-ai-portfolio)[Sector portfolio **Greylock's IT Services portfolio** 26 startups · $1.2B](https://millionrounds.com/portfolio-maps/greylock-partners-it-services-portfolio)[Sector portfolio **Greylock's Cybersecurity portfolio** 19 startups · $2.0B](https://millionrounds.com/portfolio-maps/greylock-partners-cybersecurity-portfolio)[Sector portfolio **Greylock's Software portfolio** 17 startups · $1.1B](https://millionrounds.com/portfolio-maps/greylock-partners-software-portfolio)[Sector portfolio **Greylock's Fintech portfolio** 16 startups · $2.4B](https://millionrounds.com/portfolio-maps/greylock-partners-fintech-portfolio)[Sector portfolio **Greylock's Internet portfolio** 16 startups · $4.8B](https://millionrounds.com/portfolio-maps/greylock-partners-internet-portfolio) ## Raising from investors like Greylock? 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