Insights

Government Focus ISSI serves Federal, State, and Local agencies with established contracts and procurement channels such as GSA MAS Schedule, CMS-SPARC, Seaport-e, MD State CATS+, WSSC CATS, CIO-SP3, and ITSSC II, indicating ongoing opportunities in public sector modernization, cloud adoption, and security compliance initiatives.

Security Credentials Certified to ISO 9001:2015, ISO 27001:2013, and CMMI Level 3, plus MBE certifications in Maryland and Virginia, signaling a strong quality, information security, and diversity-focused vendor profile attractive to compliance-driven buyers and programs prioritizing trustworthy partners.

Cloud and Modern Stack Technical footprint includes Amazon Web Services and Next.js among others, suggesting opportunities in cloud migrations, modular web/cloud modernization, and secure software development for both government and commercial clients.

Geographic Reach Presence in Greenbelt with offices in California, Florida, Dallas and offshore delivery in Hyderabad enables multi-region delivery models, nearshore/fractional teams, and faster time-to-value for clients with distributed operations or federal hotspot needs.

Mid-Mized Growth With 51-200 employees and revenue between 50M and 100M, ISSI is positioned for scalable engagements, including large-scale IT services, managed services, and strategic programs that trim procurement risk for buyers seeking established but nimble partners.

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International Software Systems, Inc. Tech Stack

International Software Systems, Inc. uses 8 technology products and services including Amazon Web Services, Unpkg, Amazon Simple Email Service, and more. Explore International Software Systems, Inc.'s tech stack below.

Amazon Web Services
Cloud Hosting
Unpkg
Content Delivery Network
Amazon Simple Email Service
Email
Microsoft 365
Email
Next.js
Javascript Frameworks
CFML
Programming Languages
X-XSS-Protection
Security
jQuery Waypoints
Web Tools And Plugins

International Software Systems, Inc.'s Email Address Formats

International Software Systems, Inc. uses at least 4 email formats:

International Software Systems, Inc. Email Formats	Example	Percentage
FLast@issi-software.com	JDoe@issi-software.com	82%
First@issi-software.com	John@issi-software.com	15%
Last@issi-software.com	Doe@issi-software.com	2%
FirstLa@issi-software.com	JohnDo@issi-software.com	1%

Frequently Asked Questions

What is International Software Systems, Inc.'s phone number?

You can contact International Software Systems, Inc.'s main corporate office by phone at

+1-301-982-****

. 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 International Software Systems, Inc.'s official website and social media links?

International Software Systems, Inc.'s official website is issi-software.com and has social profiles on LinkedIn.

How much revenue does International Software Systems, Inc. generate?

As of August 2026, International Software Systems, Inc.'s annual revenue is estimated to be $50M - $100M.

What is International Software Systems, Inc.'s NAICS code?

International Software Systems, Inc.'s NAICS code is 5415 - Computer Systems Design and Related Services.

How many employees does International Software Systems, Inc. have currently?

As of August 2026, International Software Systems, Inc. has approximately 81 employees across 2 continents, including North America and Asia. Key team members include Chief Financial Officer: E. R., Human Resources Manager: D. H. and Sr. Software Engineer: S. K. Explore International Software Systems, Inc.'s employee directory with LeadIQ.

What industry does International Software Systems, Inc. belong to?

International Software Systems, Inc. operates in the IT Services and IT Consulting industry.

What technology does International Software Systems, Inc. use?

International Software Systems, Inc.'s tech stack includes Amazon Web Services, Unpkg, Amazon Simple Email Service, Microsoft 365, Next.js, CFML, X-XSS-Protection and jQuery Waypoints.

What is International Software Systems, Inc.'s email format?

International Software Systems, Inc.'s email format typically follows the pattern of FLast@issi-software.com. Find more International Software Systems, Inc. email formats with LeadIQ.

When was International Software Systems, Inc. founded?

International Software Systems, Inc. was founded in 1995.

International Software Systems, Inc.

Q: What technology does International Software Systems, Inc. use?

International Software Systems, Inc.'s tech stack includes Microsoft IIS, Animate.css, jsDelivr, Amazon Web Services, Bootstrap Table.

Q: What is International Software Systems, Inc.'s NAICS code?

International Software Systems, Inc.'s NAICS code is 5415 (Computer Systems Design and Related Services).

IT Services and IT ConsultingMaryland, United States51-200 Employees

International Software Systems, Inc. (ISSI) is a midsize IT services and consulting firm based in Greenbelt, Maryland. Its client base includes federal, state, and local government agencies as well as commercial organizations, for whom it delivers technology solutions across a range of engagements.

With a 28-year history, ISSI has expanded its footprint to California, Florida, and Dallas and operates offshore facilities in Hyderabad, India to support its global reach. The company maintains ISO 9001:2015, ISO 27001:2013, and CMMI Level 3 certifications, underscoring its commitment to quality and information security. As a minority-owned small business, ISSI emphasizes a customer-first approach and pursues work through multiple government and commercial contracting channels.