Insights

Strategic partnerships 21CS has actively expanded its partner network in 2026 with multiple strategic collaborations including Pellera Technologies, Interskill Learning, and Eccox, indicating a clear openness to co-sell opportunities and joint go-to-market initiatives that can be leveraged to unlock new client access and vertical deployments.

IBM Z focus Leadership additions and communications emphasize strengthening the IBM Z ecosystem, suggesting a strong capability in mainframe modernization, modernization services, and z/OS workloads that can address enterprise clients seeking to modernize legacy systems while preserving business continuity.

Main office transition Relocation and office expansion to Morehead City while maintaining Boston roots signals scale and geographic reach. This provides an entry point for regional clients and nearshore collaboration, as well as potential to offer distributed development and support services to enterprises with global software needs.

Data and migration Launch of TRANSVERSE[n], a vendor independent data migration solution, indicates capability in data integrity and application availability during transitions. This insight positions 21CS as a potential partner for clients undertaking large-scale data migrations or system consolidations.

Financial scale With reported revenue in the multi-hundred million range and hundreds of employees, 21CS presents an enterprise-grade profile suitable for large deals, long sales cycles, and strategic deals with mid-market to enterprise customers seeking comprehensive software development, integration, and modernization services.

Similar companies to 21CS

21CS Tech Stack

21CS uses 8 technology products and services including REST, DFSORT, Amazon EC2, and more. Explore 21CS's tech stack below.

  • REST
    Api Management
  • DFSORT
    Big Data Processing
  • Amazon EC2
    Cloud Infrastructure Computing
  • jsDelivr
    Content Delivery Network
  • Selenium
    Frameworks And Libraries
  • Cloudflare Bot Management
    Security
  • Sitelinks Search Box
    Web Tools And Plugins
  • Facebook Widget
    Widgets

Media & News

21CS's Email Address Formats

21CS uses at least 2 format(s):
21CS Email FormatsExamplePercentage
First.Last@21cs.comJohn.Doe@21cs.com
75%
FLast@21cs.comJDoe@21cs.com
25%
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.

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 July 2026, 21CS has approximately 160 employees across 5 continents, including North AmericaOceaniaEurope. Key team members include Vice President, Vsen R+d, Center Of Excellence Germany: G. M. S.Customer Success Manager: F. P.Marketing Team Lead: J. P. A.. 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 RESTDFSORTAmazon EC2jsDelivrSeleniumCloudflare Bot ManagementSitelinks Search BoxFacebook Widget.

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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