Insights

Target Startup Growth Atrium’s core focus on accelerating startup growth through streamlined professional services positions it as an ideal partner for early-stage companies seeking scalable legal, HR, and fundraising support.

Expanding Customer Base With over 400 startups trusting Atrium and significant venture capital backing, there is substantial opportunity to expand outreach within the vibrant startup ecosystem, especially among emerging technology firms.

Technology-Driven Solutions Atrium’s leverage of a sophisticated tech platform and digital marketing tools like Google Analytics and Marketo indicates an emphasis on data-driven engagement strategies—potential for targeted outreach to similar high-growth startups.

Funding and Revenue Potential Supported by notable investors and with revenue up to 10 million dollars, Atrium's financial strength provides opportunities for strategic cross-sell and upsell of complementary legal and operational services to existing clients.

Industry Positioning As a modern legal and professional services provider tailored to startup needs, Atrium can differentiate itself by emphasizing its innovative approach, attracting tech-savvy founders and startup executives seeking efficient, integrated solutions.

Atrium Tech Stack

Atrium uses 8 technology products and services including WordPress, jQuery UI, Pardot, and more. Explore Atrium's tech stack below.

  • WordPress
    Content Management System
  • jQuery UI
    Javascript Libraries
  • Pardot
    Marketing
  • Marketo
    Marketing Automation
  • Bootstrap
    UI Frameworks
  • YouTube
    Video Players
  • Google Analytics
    Web Analytics
  • Facebook
    Widgets

Media & News

Atrium's Email Address Formats

Atrium uses at least 1 format(s):
Atrium Email FormatsExamplePercentage
First.Last@atrium.coJohn.Doe@atrium.co
80%
FLast@atrium.coJDoe@atrium.co
10%
First@atrium.coJohn@atrium.co
6%
Last.F@atrium.coDoe.J@atrium.co
4%

Frequently Asked Questions

Where is Atrium's headquarters located?

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Atrium's main headquarters is located at San Francisco, CA US. The company has employees across 5 continents, including North AmericaEuropeSouth America.

What is Atrium's phone number?

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You can contact Atrium's main corporate office by phone at . For more prospecting data, LeadIQ has access to up-to-date and accurate contact information within our platform. Find, capture, and sync contact data to your CRM and sales tools in one click.

What is Atrium's stock symbol?

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Atrium is a publicly traded company; the company's stock symbol is 0MK2.L.

What is Atrium's official website and social media links?

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Atrium's official website is atrium.co and has social profiles on LinkedInCrunchbase.

What is Atrium's NAICS code?

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Atrium's NAICS code is 5112 - Software Publishers.

How many employees does Atrium have currently?

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As of October 2025, Atrium has approximately 51 employees across 5 continents, including North AmericaEuropeSouth America. Key team members include Emergency Room Nurse: D. P.. Explore Atrium's employee directory with LeadIQ.

What industry does Atrium belong to?

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Atrium operates in the Software Development industry.

What technology does Atrium use?

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Atrium's tech stack includes WordPressjQuery UIPardotMarketoBootstrapYouTubeGoogle AnalyticsFacebook.

What is Atrium's email format?

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Atrium's email format typically follows the pattern of First.Last@atrium.co. Find more Atrium email formats with LeadIQ.

How much funding has Atrium raised to date?

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As of October 2025, Atrium has raised $226M in funding. The last funding round occurred on Sep 11, 2018 for $65M.

When was Atrium founded?

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Atrium was founded in 2017.

Atrium

Software DevelopmentCalifornia, United States51-200 Employees

Atrium is reimagining the way professional services for startups are delivered. Through a technology platform and network of expert providers, Atrium’s mission is to accelerate the growth of startups by advising them in the areas where they most need help, such as legal, fundraising, HR & culture, and hiring. This empowers founders and startup executives to no longer be bogged down by the operational details and instead focus on their superpower. 

Co-founded by Justin Kan in 2017, Atrium is backed by Andreessen Horowitz, Y Combinator, and General Catalyst, among others, and is trusted by over 400 startups. Atrium is headquartered in San Francisco, California.

Section iconCompany Overview

Headquarters
San Francisco, CA US
Phone number
Website
atrium.co
Stock Symbol
0MK2.L
NAICS Code
5112 - Software Publishers
Founded
2017
Employees
51-200

Section iconMedia & News

Section iconFunding & Financials

  • $226M

    Atrium has raised a total of $226M of funding over 4 rounds. Their latest funding round was raised on Sep 11, 2018 in the amount of $65Mas a funding.

  • $1M$10M

    Atrium's revenue is estimated to be in the range of $1M$10M

Section iconFunding & Financials

  • $226M

    Atrium has raised a total of $226M of funding over 4 rounds. Their latest funding round was raised on Sep 11, 2018 in the amount of $65Mas a funding.

  • $1M$10M

    Atrium's revenue is estimated to be in the range of $1M$10M

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