Insights

SDVOSB Advantage As a Service-Disabled Veteran Owned Small Business with a dedicated Veteran Impact Program, ISI presents a compelling value proposition for government agencies and veterans-focused programs seeking compliant partners with strong workforce development commitments.

Strong Revenue Scale With a healthy mid-market revenue range and a sizable employee base, ISI demonstrates capacity to scale for large projects and multi-year programs across defense, federal, and civilian sectors.

Diverse Service Offerings ISI’s breadth spans program and project management, construction, real estate advisory, acquisitions, logistics and facility management, and leadership development, enabling cross-sell opportunities across portfolios and capture of multi-discipline contracts.

Tech Enabled Adoption of tools like Microsoft Power Apps, Tableau, SAP, and SAP Concur indicates modern, data-driven project execution and reporting capabilities that can be leveraged to differentiate proposals and deliver measurable outcomes.

Talent & Veterans Focus Emphasis on continuous professional development, employee engagement, and veteran transitions suggests a strong, loyal workforce and potential for long-term program staffing contracts with federal and commercial clients prioritizing talent retention.

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ISI Professional Services Tech Stack

ISI Professional Services uses 8 technology products and services including Microsoft Power Apps, Tableau, SAP, and more. Explore ISI Professional Services's tech stack below.

ISI Professional Services's Email Address Formats

ISI Professional Services uses at least 2 email formats:
ISI Professional Services Email FormatsExamplePercentage
FLast@isiwdc.comJDoe@isiwdc.com
96%
First.Last@isiwdc.comJohn.Doe@isiwdc.com
4%

Frequently Asked Questions

What is ISI Professional Services's phone number?

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You can contact ISI Professional Services'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 ISI Professional Services's official website and social media links?

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ISI Professional Services's official website is isiwdc.com and has social profiles on LinkedIn.

How much revenue does ISI Professional Services generate?

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As of October 2026, ISI Professional Services's annual revenue is estimated to be $100M - $250M.

What is ISI Professional Services's NAICS code?

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ISI Professional Services's NAICS code is 54 - Professional, Scientific, and Technical Services.

How many employees does ISI Professional Services have currently?

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As of October 2026, ISI Professional Services has approximately 71 employees across 2 continents, including North America and Asia. Key team members include Chief Operating Officer: W. R., Managing Director, Business Development And Capture: C. N. and Chairman: J. F. Explore ISI Professional Services's employee directory with LeadIQ.

What industry does ISI Professional Services belong to?

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ISI Professional Services operates in the Professional Services industry.

What technology does ISI Professional Services use?

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ISI Professional Services's tech stack includes Microsoft Power Apps, Tableau, SAP, Bluebeam, Shopify, Barracuda Email Protection, Microsoft Teams and SAP Concur.

What is ISI Professional Services's email format?

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ISI Professional Services's email format typically follows the pattern of FLast@isiwdc.com. Find more ISI Professional Services email formats with LeadIQ.

When was ISI Professional Services founded?

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ISI Professional Services was founded in 1991.
ISI Professional Services logo

ISI Professional Services

Professional ServicesVirginia, United States51-200 Employees

ISI Professional Services is a mid-sized professional services firm based in Sterling, Virginia. With more than 30 years of experience, it provides mission-critical expertise across a broad range of functional and operational areas and offers tailored workforce and project management solutions to help clients achieve strategic goals. Its service lines include Program and Project Management, Construction Management, Real Estate Advisory Support, Acquisition Management, Logistics and Facility Management, Leadership Development, Business Advisory Services, and Coaching Services.

The firm emphasizes its people as a central asset, pursuing ongoing professional development and employee experience initiatives to foster a supportive culture and durable client outcomes. As a service-disabled veteran-owned small business, ISI supports military veterans through the Veteran Impact Program, which focuses on helping veterans transition into meaningful careers and ensuring their skills are recognized and valued.

Section iconCompany Overview

Phone number
Website
isiwdc.com
NAICS Code
54 - Professional, Scientific, and Technical Services
Founded
1991
Employees
51-200

Section iconFunding & Financials

  • $100M - $250M

    ISI Professional Services's revenue is estimated to be in the range of $100M - $250M

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