How many email patterns does Substack use?

Substack uses 8 known email patterns.

What domain does Substack use for work emails?

Substack uses substack.com for work email addresses.

Most Common Email Formats at Substack

The most accurate and popular Substack's email format is FirstLast@substack.com (ex. JohnDoe@substack.com). Substack also uses First@substack.com (ex. John@substack.com) as email structures. Substack uses up to 3 different email patterns.

Substack Email Formats	Example	Percentage
FirstLast@substack.com	JohnDoe@substack.com	93%
First@substack.com	John@substack.com	5%
FirLast@substack.com	JohDoe@substack.com	2%

Frequently Asked Questions

What does Substack do?

Substack was founded in 2017. The company's main headquarters is located in 111 Sutter Street San Francisco, California 94104 United Statesoperates in the Online Audio and Video Media industry, along with similar companies like WattpadHubPagesLinkedIn. You can visit substack.com. Explore Substack's company overview page for more information.

What is Substack's email address format?

Substack's email format typically follows the pattern of FirstLast@substack.com; this email format is used 93% of the time. Other contacts within LeadIQ's database had email formats such as First@substack.comFirLast@substack.com. Looking for more contact data? Unlock accurate emails and phone numbers from millions of profiles verified in real-time.

How many employees does Substack have currently?

Substack has approximately 3.4K employees as of May 2026. Key team members to contact include Chief Executive Officer And Founder: A. R.Chief Executive Officer: B. C.Chief Executive Officer: N. C.. For more team information and contact data, explore Substack's employee directory with LeadIQ.

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Substack Email Format

Q: What is Substack's email address format?

Substack's email format typically follows the pattern of ${fn}${ln}. Other email formats include ${fn} and ${f3}${ln}.

Online Audio and Video MediaCalifornia, United States1001-5000 Employees

Substack is an online audio and video media company headquartered in San Francisco, California, with 1,001 to 5,000 employees. Founded in 2017, Substack operates a platform that connects publishers, creators, ideas, and communities and enables subscribers to support the work they value. The platform has more than 5 million paid subscriptions across the Substack network. In 2026, Substack expanded its offices to the United Kingdom and Northern Europe and launched new features, including Substack Recording Studio and the Reply Rules tool. Reported revenue is in the range of $1B to $10B.

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Most Common Email Formats at Substack

Frequently Asked Questions

What does Substack do?

What is Substack's email address format?

How many employees does Substack have currently?

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What you can expect from LeadIQ:

Substack Email Format

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