What is bluedoor (acquired by Top Hat, Inc. in 2020)'s NAICS code?

bluedoor (acquired by Top Hat, Inc. in 2020)'s NAICS code is 511 (Publishing Industries (except Internet)).

Insights

Acquisition Opportunity Bluedoor was acquired by Top Hat in 2020, indicating an alignment with edtech platforms and potential cross-sell or integration opportunities with a larger education technology ecosystem.

Market Focus Strong presence in post-secondary lab and allied health publishing suggests opportunities to expand into digital lab simulations, virtual labs, and updated courseware for biology, chemistry, microbiology, anatomy & physiology, geology, physics, and astronomy.

Financial Scale Revenue in the low to mid multiple millions with a lean 51–200 employee base indicates potential for scalable offerings, bundled licenses, and cost-effective content refresh cycles for institutions seeking affordable learning solutions.

Customization Edge Emphasis on flexible, customizable solutions shows a value proposition for institutions needing tailored curricula, assessment materials, and licensing models that accommodate diverse delivery formats.

Distribution Channels Existing web presence and technology stack (WordPress, OpenResty, HTTP/3) combined with Top Hat affiliation suggests avenues for co-marketed digital learning resources, complementary content, and integrated publishing services within edtech ecosystems.

Similar companies to bluedoor (acquired by Top Hat, Inc. in 2020)

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bluedoor (acquired by Top Hat, Inc. in 2020) Tech Stack

bluedoor (acquired by Top Hat, Inc. in 2020) uses 8 technology products and services including Hotjar, Amazon Web Services, WordPress, and more. Explore bluedoor (acquired by Top Hat, Inc. in 2020)'s tech stack below.

Hotjar
Analytics
Amazon Web Services
Cloud Hosting
WordPress
Content Management System
Cookiebot
Cookie Compliance
Zendesk
Documentation Tools
Pardot
Marketing
Webflow
Page Builders
Piwik PRO Core
Web Analytics

Media & News

Top Hat acquired Bluedoorpublishing on Jul 25th '20.
Toronto-based EdTech startup Top Hat has acquired another education publishing company, recently closing a deal to purchase United States-based Bluedoor.
Aug 25, 2020 | betakit.com

bluedoor (acquired by Top Hat, Inc. in 2020)'s Email Address Formats

bluedoor (acquired by Top Hat, Inc. in 2020) uses at least 4 email formats:

bluedoor (acquired by Top Hat, Inc. in 2020) Email Formats	Example	Percentage
First@bluedoorpublishing.com	John@bluedoorpublishing.com	62%
Last@bluedoorpublishing.com	Doe@bluedoorpublishing.com	19%
First.Last@bluedoorpublishing.com	John.Doe@bluedoorpublishing.com	14%
FirstL@bluedoorpublishing.com	JohnD@bluedoorpublishing.com	5%

Frequently Asked Questions

What is bluedoor (acquired by Top Hat, Inc. in 2020)'s phone number?

You can contact bluedoor (acquired by Top Hat, Inc. in 2020)'s main corporate office by phone at

+1-952-934-****

. 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 bluedoor (acquired by Top Hat, Inc. in 2020)'s official website and social media links?

bluedoor (acquired by Top Hat, Inc. in 2020)'s official website is bluedoorpublishing.com and has social profiles on LinkedIn.

How much revenue does bluedoor (acquired by Top Hat, Inc. in 2020) generate?

As of August 2026, bluedoor (acquired by Top Hat, Inc. in 2020)'s annual revenue is estimated to be $1M - $10M.

What is bluedoor (acquired by Top Hat, Inc. in 2020)'s SIC code and NAICS code?

bluedoor (acquired by Top Hat, Inc. in 2020)'s SIC code is 2731 - Books: Publishing, or Publishing and Printing and NAICS code is 511 - Publishing Industries (except Internet).

How many employees does bluedoor (acquired by Top Hat, Inc. in 2020) have currently?

As of August 2026, bluedoor (acquired by Top Hat, Inc. in 2020) has approximately 59 employees across 2 continents, including North America and Asia. Key team members include Chief Financial Officer: J. T., Partner: D. G. and Human Resources Generalist: K. A. Explore bluedoor (acquired by Top Hat, Inc. in 2020)'s employee directory with LeadIQ.

What industry does bluedoor (acquired by Top Hat, Inc. in 2020) belong to?

bluedoor (acquired by Top Hat, Inc. in 2020) operates in the Book and Periodical Publishing industry.

What technology does bluedoor (acquired by Top Hat, Inc. in 2020) use?

bluedoor (acquired by Top Hat, Inc. in 2020)'s tech stack includes Hotjar, Amazon Web Services, WordPress, Cookiebot, Zendesk, Pardot, Webflow and Piwik PRO Core.

What is bluedoor (acquired by Top Hat, Inc. in 2020)'s email format?

bluedoor (acquired by Top Hat, Inc. in 2020)'s email format typically follows the pattern of First@bluedoorpublishing.com. Find more bluedoor (acquired by Top Hat, Inc. in 2020) email formats with LeadIQ.

When was bluedoor (acquired by Top Hat, Inc. in 2020) founded?

bluedoor (acquired by Top Hat, Inc. in 2020) was founded in 2001.

bluedoor (acquired by Top Hat, Inc. in 2020)

Book and Periodical PublishingMinnesota, United States51-200 Employees

Bluedoor is a private, science-based publisher serving the post-secondary market with a focus on lab-centered resources across biology, chemistry, microbiology, anatomy and physiology, geology, physics, and astronomy. The college publishing group provides lab support materials in print and digital formats, while the career publishing group serves allied health and veterinary technology markets. Headquartered in Minneapolis, Minnesota, the company was formed in 2005 and operates as a mid-sized independent publisher.

In 2020, bluedoor was acquired by Top Hat, Inc., an education technology company. The business emphasizes flexible and customizable learning solutions aligned to educators' needs in higher education.