The company behind Day One
Automattic
Day One is made by Automattic, the company behind WordPress.com, Tumblr and Pocket Casts, which bought it in 2021. Day One earns money from its Silver and Gold subscriptions; Automattic as a whole earns from paid plans and services across its products.
dayoneapp.comRead on Oct 18, 2026 from the company’s own pages and from news reports.
Day One at a glance
- Chief executive
- Matt Mullenweg
- Founded
- 2005
- Based in
- San Francisco, CA, USA (headquarters), with staff working remotely
- Last valuation
- $7.5 billion
- Reported August 2021
- Latest round
- Funding round, $288 million
- February 2021
- Team
- 1,403 people
- Ownership
- Privately held
Day One's CEO and founders
The people Automattic names itself, or a news report about it names, with the job given there. Their accounts are the ones its own pages link to.
Day One funding
Across the whole company: a $288 million primary round in February 2021, a $300 million Series D from Salesforce Ventures in September 2019, $160 million led by Insight Venture Partners in May 2014 and a $29.5 million Series B led by Polaris Ventures in January 2008. TechCrunch reported that Day One was bootstrapped before the 2021 sale, whose terms were not disclosed. ma.tttechcrunch.cominsightpartners.comtechcrunch.com
| When | Round | Amount | Investors |
|---|---|---|---|
| February 2021 | Funding round | $288 million | With BlackRock, Wellington, Schonfeld, Alta Park, ICONIQ, Aglaé. ma.tt |
| Sep 19, 2019 | Series D | $300 million | Led by Salesforce Ventures. techcrunch.com |
| May 5, 2014 | Funding round | $160 million | Led by Insight Venture Partners. With Chris Sacca, Endurance, True Ventures, Tiger Global Management, Iconiq. insightpartners.com |
| Jan 22, 2008 | Series B | $29.5 million | Led by Polaris Ventures. With The New York Times, True Ventures, Radar Ventures. techcrunch.com |
Every investor named
- Insight Venture Partners · led a round
- Polaris Ventures · led a round
- Salesforce Ventures · led a round
- ICONIQ
- True Ventures
- Aglaé
- Alta Park
- BlackRock
- Chris Sacca
- Endurance
- Radar Ventures
- Schonfeld
- The New York Times
- Tiger Global Management
- Wellington
Day One valuation
$7.5 billion
August 2021
Automattic's founder and CEO announced on his own blog in August 2021 that a $250 million share buyback had closed at a $7.5 billion valuation. The figure is for the whole company. ma.tt
A private company’s valuation is set when it raises money and is rarely updated in public. It is not a share price.
Company details
- Ownership
- Privately held. Day One has been part of Automattic since June 2021, by its own account. Automattic's press page describes the company as privately held and independent, and names its key investors. automattic.com
- Founded
- 2005 automattic.com
- Based in
- San Francisco, CA, USA (headquarters), with staff working remotely automattic.com
- Team
- 1,403 Automatticians in 83 countries, across the whole company, according to its careers page automattic.com
- Hiring
- 12 open roles across the whole company: 4 in sales, 2 each in marketing and customer success, and 1 each in engineering, legal, product and infrastructure; none for Day One automattic.com
- Partner program
- A partnership request form for people who want to help others build a journaling habit with Day One. Requests are reviewed within ten business days; no payment terms are published. dayoneapp.com
Jobs at Automattic
Any open roles at Automattic are on its own careers page. We can’t read a count from there, so have a look.
Applications go to Automattic, not to us.
Day One on social media and the web
- X (Twitter)x.com/dayone
- LinkedInlinkedin.com/company/day-one-app
- Instagraminstagram.com/dayoneapp
- Facebookfacebook.com/groups/DayOneCommunity
- Blueskybsky.app/profile/dayoneapp.com
- Blog · dayoneapp.com
- Changelog · dayoneapp.com
- Podcast · dayoneapp.com
- Community · forums.dayoneapp.com
- Careers · automattic.com
Only accounts Automattic links to from its own site, so you know they are its own.
How to contact Automattic
The ways Automattic publishes for reaching it. We don’t list personal email addresses, guessed or otherwise.
Day One news and launches
- Sep 8, 2026Day One Labs Is Back in Silver
- Aug 28, 2026Introducing Journal Collections
- Mar 30, 2026Introducing Day One Silver and Gold
- Mar 30, 2026Introducing Daily Chat
Media kit
The Automattic media kit
Everything on this page as a designed PDF to keep or pass on: the facts, the people, the funding with a chart of every round, the products with their grades and pictures, the news and every official channel. Put together by ToolGPA, not by Automattic.
Questions about Day One the company
Who is the CEO of Day One?
Matt Mullenweg is Automattic's founder & CEO, Automattic, according to automattic.com, as read on Oct 18, 2026.
Who founded Day One?
Matt Mullenweg and Paul Mayne are named as founders of Automattic, which was founded in 2005.
How much funding has Day One raised?
Across the whole company: a $288 million primary round in February 2021, a $300 million Series D from Salesforce Ventures in September 2019, $160 million led by Insight Venture Partners in May 2014 and a $29.5 million Series B led by Polaris Ventures in January 2008. TechCrunch reported that Day One was bootstrapped before the 2021 sale, whose terms were not disclosed.
Who are Day One's investors?
The announcements name Insight Venture Partners, Polaris Ventures, Salesforce Ventures, ICONIQ, True Ventures, Aglaé, Alta Park, BlackRock, Chris Sacca, Endurance, Radar Ventures and Schonfeld, and 3 more. Insight Venture Partners, Polaris Ventures and Salesforce Ventures led rounds.
When did Day One last raise money?
The most recent round announced was in February 2021: Funding round, $288 million.
What is Day One's valuation?
$7.5 billion, as of August 2021. Automattic's founder and CEO announced on his own blog in August 2021 that a $250 million share buyback had closed at a $7.5 billion valuation. The figure is for the whole company.
Who owns Day One?
Day One has been part of Automattic since June 2021, by its own account. Automattic's press page describes the company as privately held and independent, and names its key investors.
Where is Day One based?
Automattic gives its base as San Francisco, CA, USA (headquarters), with staff working remotely.
How many people work at Day One?
1,403 Automatticians in 83 countries, across the whole company, according to its careers page.
Is Day One hiring?
12 open roles across the whole company: 4 in sales, 2 each in marketing and customer success, and 1 each in engineering, legal, product and infrastructure; none for Day One.
Is Day One on social media?
Automattic links to its own accounts on X (Twitter), LinkedIn, Instagram, Facebook and Bluesky. The links are on this page, taken from Automattic's own site.
Where this comes from
Read on Oct 18, 2026. Facts come from Automattic’s own pages, news reports and investors’ own announcements; nothing from paid data sites. What no page states is left out. If something here is out of date, the company can send a correction through the vendor page.