Insights

Strategic Partnerships 21CS has been actively forming strategic partnerships with TES Enterprise Solutions, Pellera Technologies, Interskill Learning, and others in 2026, signaling a growth-focused channel strategy that could open co-sell and integration opportunities for sales teams.

IBM Z Focus The company emphasizes strengthening the IBM Z ecosystem, including hiring a Chief Commercial Officer to drive commercial growth in this domain, suggesting a strong cross-selling opportunity for IBM Z related services, training, and modernization solutions.

Data Migration Delight Deployment of TRANSVERSE[n], a vendor independent data migration solution, indicates a capability to address data portability and integrity needs for clients undergoing system migrations, a potential entry point for data integration and modernization deals.

Mainframe Skilled Workforce Partnerships with Interskill Learning highlight a focus on IBM Z mainframe workforce training, presenting a sales angle for training subscriptions, certification programs, and workforce enablement bundles for enterprise clients migrating to or optimizing mainframe environments.

Cloud and Security Stack The tech stack includes cloud and security components (Amazon EC2, Cloudflare Bot Management, Selenium, REST) indicating capabilities in cloud-hosted deployments, bot protection, and test automation that can be positioned to mid-market and enterprise clients seeking secure, scalable software solutions.

21CS Tech Stack

21CS uses 8 technology products and services including LinkedIn Ads, HubSpot Analytics, SAS, and more. Explore 21CS's tech stack below.

Media & News

21CS's Email Address Formats

21CS uses at least 2 format(s):
21CS Email FormatsExamplePercentage
First.Last@21cs.comJohn.Doe@21cs.com
89%
FLast@21cs.comJDoe@21cs.com
6%
First.Middle@21cs.comJohn.Michael@21cs.com
5%
FirstL@21stcenturysoftware.comJohnD@21stcenturysoftware.com
89%
Last@21stcenturysoftware.comDoe@21stcenturysoftware.com
5%
FirstLast@21stcenturysoftware.comJohnDoe@21stcenturysoftware.com
3%
First_L@21stcenturysoftware.comJohn_D@21stcenturysoftware.com
3%

Frequently Asked Questions

What is 21CS's phone number?

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You can contact 21CS'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 21CS's official website and social media links?

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21CS's official website is 21cs.com and has social profiles on LinkedIn.

How much revenue does 21CS generate?

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As of August 2026, 21CS's annual revenue is estimated to be $250M - $500M.

What is 21CS's NAICS code?

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21CS's NAICS code is 5112 - Software Publishers.

How many employees does 21CS have currently?

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As of August 2026, 21CS has approximately 165 employees across 5 continents, including North AmericaOceaniaEurope. Key team members include Chief Executive Officer: L. K.Vice President, Vsen R+d, Center Of Excellence Germany: G. M. S.Director Of Go To Market: J. S.. Explore 21CS's employee directory with LeadIQ.

What industry does 21CS belong to?

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21CS operates in the Software Development industry.

What technology does 21CS use?

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21CS's tech stack includes LinkedIn AdsHubSpot AnalyticsSASAmazon Web ServicesCookieYesSlackDigitalOcean Web HostingAtlassian Confluence.

What is 21CS's email format?

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21CS's email format typically follows the pattern of First.Last@21cs.com. Find more 21CS email formats with LeadIQ.
21CS logo

21CS

Software DevelopmentNorth Carolina, United States51-200 Employees

21CS is a mid-sized software development company based in Morehead City, North Carolina. It provides software solutions intended to support mission-critical operations across business and IT processes. The firm has engaged in partnerships and initiatives connected to the IBM Z mainframe ecosystem, signaling a focus on enterprise-scale, reliable infrastructure.

During 2024, the company relocated its headquarters from Boston to Morehead City and expanded its development, marketing, and technical support activities there. In 2025 and 2026, 21CS announced several strategic partnerships with Pellera Technologies, Interskill Learning, and Eccox, and launched TRANSVERSE[n], a vendor-independent data migration solution; it also appointed Clemencia 'Cleo' Clarke as Chief Commercial Officer.

Section iconCompany Overview

Phone number
Website
21cs.com
NAICS Code
5112 - Software Publishers
Employees
51-200

Section iconFunding & Financials

  • $250M - $500M

    21CS's revenue is estimated to be in the range of $250M - $500M

Section iconFunding & Financials

  • $250M - $500M

    21CS's revenue is estimated to be in the range of $250M - $500M

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