# Graylog funding: rounds and investors > Graylog has raised $33M across 2 rounds since 2015. Investors include Crosslink Capital, Mercury Fund and Headline. Every round with its source. Source: https://millionrounds.com/company/graylog (Millionrounds; every figure on the page links to its filing or article) United States · [Funded startup](https://millionrounds.com/companies) # Who invested in *Graylog* 2 rounds we have observed, with the 5 investors named in them. Every figure came from a named source, and where the company reported a raise to the SEC itself, that is shown beside it. Big Data & Analytics Funding summary Updated 26 Oct 2026 **$33M** raised across 2 rounds since 2015, from 2 sources **$2.5M** Seed **$30M** Debt - **Latest round:** Debt, $30M Oct 2023 - **Step-up i:** 12× - **Investors:** 5 See who backed them ## The funding story Each circle is a round, placed by date and sized by amount. The line above is the running total. 2015 2017 2019 2021 2023 **$2.5M** Seed **$30M** Debt - **First round:** Seed, $2.5M - **Biggest round:** $30M - **Between rounds:** 8.7 years ## The rounds - **Oct 2023** Debt **$30M** *1 new* *2 returning* [Crosslink Capital](https://millionrounds.com/fund/crosslink-capital) [Headline](https://millionrounds.com/fund/headline) [Mercury Fund](https://millionrounds.com/fund/mercury-fund) Source recorded SEC filing: $9.0M sold, first sale Sept 2023 - **Feb 2015** Seed **$2.5M** *4 new* [Crosslink Capital](https://millionrounds.com/fund/crosslink-capital) [High-Tech Gruenderfonds](https://millionrounds.com/fund/high-tech-gruenderfonds) [Mercury Fund](https://millionrounds.com/fund/mercury-fund) [e.ventures](https://millionrounds.com/fund/e-ventures) From a historical funding record ## Who was in which round The busiest backers across the latest rounds. A filled square is a round they joined; a dark one, a round they led. **Seed** 2015 **Debt** 2023 [Crosslink Capital](https://millionrounds.com/fund/crosslink-capital) [Mercury Fund](https://millionrounds.com/fund/mercury-fund) [Headline](https://millionrounds.com/fund/headline) [High-Tech Gruenderfonds](https://millionrounds.com/fund/high-tech-gruenderfonds) [e.ventures](https://millionrounds.com/fund/e-ventures) ## Everyone who backed them [Crosslink Capital](https://millionrounds.com/fund/crosslink-capital) VC firm **2** rounds [Mercury Fund](https://millionrounds.com/fund/mercury-fund) VC firm **2** rounds [Headline](https://millionrounds.com/fund/headline) VC firm **1** round [High-Tech Gruenderfonds](https://millionrounds.com/fund/high-tech-gruenderfonds) VC firm **1** round [e.ventures](https://millionrounds.com/fund/e-ventures) VC firm **1** round Missing a round, or an investor who was in one? [Tell us](https://millionrounds.com/corrections?slug=graylog). ## Also claim to have backed them These 3 firms list Graylog as a portfolio company on their own websites, but no report of a round names them. They are the firms' own claims, kept apart from the rounds above. [Alerion Ventures](https://millionrounds.com/fund/alerion-ventures) VC firm Per its own site [FirstMile Ventures](https://millionrounds.com/fund/firstmile-ventures) VC firm Per its own site [Frontera Technology Ventures, Inc.](https://millionrounds.com/fund/frontera-technology-ventures-inc) Growth equity Per its own site ## Quick answers about Graylog ### Who invested in Graylog? Graylog's investors include Crosslink Capital, Mercury Fund, Headline, High-Tech Gruenderfonds and e.ventures. ### How much has Graylog raised? Graylog has raised $33M across 2 rounds since 2015. ### When did Graylog last raise? Graylog's most recent round was a Debt of $30M in Oct 2023. ### What was Graylog's biggest round? Its most recent round, $30M in Oct 2023, is also its largest on record. ### Who backed Graylog first? Graylog's first round on record, in Feb 2015, was backed by Crosslink Capital, High-Tech Gruenderfonds and Mercury Fund and 1 others. ### What stage is Graylog at? Graylog's latest named round is a Debt, in Oct 2023. ### Where is Graylog based? Graylog is based in the United States. ## Companies like Graylog In the same sector, and raised in the last eighteen months. [**SpaceX** $42B · Oct 2026](https://millionrounds.com/company/spacex)[**STRIVE** $1.3B · Oct 2026](https://millionrounds.com/company/strive)[**Xona** $512M · Oct 2026](https://millionrounds.com/company/xona)[**DrizzleX** $9.1M · Oct 2026](https://millionrounds.com/company/drizzlex)[**Prism Data** $25M · Oct 2026](https://millionrounds.com/company/prism-data)[**Homa** $5.0M · Oct 2026](https://millionrounds.com/company/homa) ## Find investors like these Search every investor by what they have actually funded, then narrow to your stage and market. Free. Open the investor searchOr these rounds in the app