United States · 
Who invested in Graylog?
Graylog's investors include Crosslink Capital, Mercury Fund, Headline, High-Tech Gruenderfonds and e.ventures.
20152017201920212023
$2.5MSeed$30MDebtUnited States · Funded startup
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.
Funding summaryUpdated 26 Oct 2026
$33Mraised across 2 rounds since 2015, from 2 sources
$2.5MSeed$30MDebt
- Latest round
- Debt, $30MOct 2023
- Step-upi
- 12×
- Investors
- 5
The funding story
Each circle is a round, placed by date and sized by amount. The line above is the running total.
- First round
- Seed, $2.5M Feb 2015
- Biggest round
- $30M Debt · Oct 2023
- Between rounds
- 8.7 years from the last two
The rounds
- Oct 2023Debt$30M1 new2 returning
Source recordedSEC filing: $9.0M sold, first sale Sept 2023
- Feb 2015Seed$2.5M4 new
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.
Everyone who backed them
High-Tech GruenderfondsVC firm1round
e.venturesVC firm1round
Missing a round, or an investor who was in one? Tell us.
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.
Quick answers about Graylog
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.
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In the same sector, and raised in the last eighteen months.
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