Insights

Small Biz Advantage DSI is an SBA 8(a) certified SDB HUBZone small business with a focused service footprint and government/commercial clientele, presenting a compelling selling point for agencies seeking small, trusted security partners and for programs supporting diverse suppliers.

Security Platform Their installation and maintenance capabilities span electrical systems, mass notification, surveillance, access control, life safety, and IT hardware, enabling cross-sell of integrated security solutions to existing and new clients needing turnkey, scalable security ecosystems.

Govt and Commercial Serving both government and commercial clients plus minority business certifications suggests opportunities in federal/state agency contracts and private sector projects that require compliance with diversity, equity, and inclusion goals and small-business requirements.

Tech Edge Commitment to staying on the cutting edge of technology and a Microsoft 365 tech stack indicates readiness for cloud-based security management, remote monitoring, and modern IT-enabled security deployments to modernize clients’ systems.

Growth Signals Revenue in the defined range and detailed certifications position DSI for target account selling to mid-market security buyers, with potential expansions into larger managed services, system integrations, and sustained maintenance contracts as they scale.

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?

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

How much revenue does Diamond SI generate?

Minus sign iconPlus sign icon
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?

Minus sign iconPlus sign icon
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?

Minus sign iconPlus sign icon
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?

Minus sign iconPlus sign icon
Diamond SI operates in the Facilities Services industry.

What technology does Diamond SI use?

Minus sign iconPlus sign icon
Diamond SI's tech stack includes Microsoft 365.

What is Diamond SI's email format?

Minus sign iconPlus sign icon
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

Ready to create more pipeline?

Get a demo and discover why thousands of SDR and Sales teams trust
LeadIQ to help them build pipeline confidently.

© LeadIQ, Inc. All rights reserved.