Insights

SBA Certified Edge Diamond SI is an SBA-certified 8(a) SDB and HUBZone small business, positioning it for set-aside government opportunities and preferential procurement programs that can be targeted by defense, homeland security, and municipal clients.

Integrated Security Solutions The company offers a broad installation and maintenance suite including electrical, mass notification, surveillance, access control, life safety, and IT systems, suggesting cross-sell potential across government facilities, schools, and critical infrastructure projects.

Small but Agile With a lean team and a stated capability for quick turnarounds on complex projects, Diamond SI can target fast-moving security modernization bids and pilot projects where larger competitors struggle to respond.

Public Sector Footprint Accreditations with multiple minority business enterprise programs and a track record with government and municipal entities indicate strong entry points for state and local government contracting and vendor partnerships.

Growth Signals Revenue range indicates emerging scale; prospects may include expanding into larger security programs, modernizing mass notification and access systems for facilities, and pursuing multi-year service contracts with recurring revenue models.

Similar companies to Diamond SI

Diamond SI Tech Stack

Diamond SI uses 1 technology products and services including Microsoft 365, and more. Explore Diamond SI's tech stack below.

Diamond SI's Email Address Formats

Diamond SI uses at least 1 email format:
Diamond SI Email FormatsExamplePercentage
FLast@diamondsecurityinc.comJDoe@diamondsecurityinc.com
100%

Frequently Asked Questions

What is Diamond SI's official website and social media links?

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Diamond SI's official website is diamondsecurityinc.com and has social profiles on LinkedIn.

How much revenue does Diamond SI generate?

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As of September 2026, Diamond SI's annual revenue is estimated to be $1M - $10M.

What is Diamond SI's SIC code and NAICS code?

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Diamond SI's SIC code is 7381 - Detective, Guard, and Armored Car Services and NAICS code is 5612 - Facilities Support Services.

How many employees does Diamond SI have currently?

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As of September 2026, Diamond SI has approximately 9 employees across 1 continents, including North America. Key team members include Principal: N. R. Explore Diamond SI's employee directory with LeadIQ.

What industry does Diamond SI belong to?

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Diamond SI operates in the Facilities Services industry.

What technology does Diamond SI use?

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Diamond SI's tech stack includes Microsoft 365.

What is Diamond SI's email format?

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Diamond SI's email format typically follows the pattern of FLast@diamondsecurityinc.com. Find more Diamond SI email formats with LeadIQ.
Diamond SI logo

Diamond SI

Facilities ServicesMaryland, United States2-10 Employees

Diamond SI is a facilities services company based in Windsor Mill, Maryland, providing security and system solutions intended to protect lives and property both in the U.S. homeland and overseas. The firm operates as a small business with certifications that include SBA 8(a), Small Disadvantaged Business, and HUBZone status, and serves a mix of government and commercial clients with customized, versatile security services designed to support rapid project delivery without sacrificing quality.

Its offerings span installation and maintenance across electrical, life-safety, and security systems, including surveillance, access control, entry systems, and related protective technologies. The company emphasizes a multifaceted approach to projects, combining professional experience with ongoing adoption of new technologies, and it participates in multiple minority business programs at the state and metropolitan levels to broaden its market access. Located in the Baltimore metropolitan area, Diamond SI positions itself within the security and facilities services industry as a small, certified provider capable of handling complex requirements for a diverse client base.

Section iconCompany Overview

SIC Code
7381 - Detective, Guard, and Armored Car Services
NAICS Code
5612 - Facilities Support Services
Employees
2-10

Section iconFunding & Financials

  • $1M - $10M

    Diamond SI's revenue is estimated to be in the range of $1M - $10M

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