Insights

Strategic partnerships Long-standing family-owned facility solutions provider with a broad footprint in New England, Northeast, and Mid-Atlantic, offering janitorial, security, and engineering services to over 1,000 clients, including commercial, government, education, and transportation sectors. Potential cross-sell across existing client base including security, pest control, lighting, and restoration services.

Facility breadth Diverse service lines such as Janitorial, Security, Engineering & Operations, Pest Control, Lighting and Electric, Window Cleaning, Concierge, and Restoration position Guardian as a one-stop partner for facilities management. Opportunity to bundle services for multi-site organizations aiming for integrated facilities solutions.

Public sector entry Recent activity with Norwalk Public Library demonstrates capability to deploy charging stations and partner with municipal entities. This suggests strong potential to pursue additional public sector contracts, including schools, libraries, transit hubs, and government facilities requiring integrated maintenance and security programs.

Digital maturity Tech stack includes AWS, Google Cloud, WordPress, Shopify and Mimecast, indicating solid cloud adoption and digital operations. This opens doors for offerings around smart facilities, IoT-enabled maintenance, cybersecurity hygiene for vendor ecosystems, and scalable facility management platforms.

Financial scale Revenue range of one to ten billion with 201-500 employees places Guardian as a mid-to-large cap services provider capable of enterprise-level contracts and long-term MSP-style engagements. Ideal fit for multi-year outsourcing deals, national or regional rollout programs, and complex service level agreements.

Similar companies to Guardian Service Industries, Inc.

Guardian Service Industries, Inc. Tech Stack

Guardian Service Industries, Inc. uses 8 technology products and services including Linkedin Insight Tag, Amazon Web Services, WordPress, and more. Explore Guardian Service Industries, Inc.'s tech stack below.

Guardian Service Industries, Inc.'s Email Address Formats

Guardian Service Industries, Inc. uses at least 4 email formats:
Guardian Service Industries, Inc. Email FormatsExamplePercentage
FLast@guardian-service.comJDoe@guardian-service.com
93%
First.Last@guardian-service.comJohn.Doe@guardian-service.com
4%
Last@guardian-service.comDoe@guardian-service.com
2%
F.Last@guardian-service.comJ.Doe@guardian-service.com
1%

Frequently Asked Questions

What is Guardian Service Industries, Inc.'s phone number?

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You can contact Guardian Service Industries, Inc.'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 Guardian Service Industries, Inc.'s official website and social media links?

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Guardian Service Industries, Inc.'s official website is guardian-service.com and has social profiles on LinkedIn.

How much revenue does Guardian Service Industries, Inc. generate?

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As of August 2026, Guardian Service Industries, Inc.'s annual revenue is estimated to be $1B - $10B.

What is Guardian Service Industries, Inc.'s SIC code and NAICS code?

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Guardian Service Industries, Inc.'s SIC code is 1799 - Special Trade Contractors, Not Elsewhere Classified and NAICS code is 5612 - Facilities Support Services.

How many employees does Guardian Service Industries, Inc. have currently?

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As of August 2026, Guardian Service Industries, Inc. has approximately 454 employees across 3 continents, including North America, Asia and Europe. Key team members include Chief Operating Officer & Principal: H. B., Chief Engineer: C. L. and Chief Engineer: S. H. Explore Guardian Service Industries, Inc.'s employee directory with LeadIQ.

What industry does Guardian Service Industries, Inc. belong to?

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Guardian Service Industries, Inc. operates in the Facilities Services industry.

What technology does Guardian Service Industries, Inc. use?

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Guardian Service Industries, Inc.'s tech stack includes Linkedin Insight Tag, Amazon Web Services, WordPress, CookieYes, Shopify, Mimecast, Sage and Google Cloud.

What is Guardian Service Industries, Inc.'s email format?

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Guardian Service Industries, Inc.'s email format typically follows the pattern of FLast@guardian-service.com. Find more Guardian Service Industries, Inc. email formats with LeadIQ.

When was Guardian Service Industries, Inc. founded?

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Guardian Service Industries, Inc. was founded in 1918.
Guardian Service Industries, Inc. logo

Guardian Service Industries, Inc.

Facilities ServicesNew York, United States201-500 Employees

Guardian Service Industries, Inc. is a family-owned facilities services provider founded in 1918. It supplies staffing and management expertise across core maintenance disciplines such as janitorial services, security, and engineering and operations, along with capabilities in pest control, lighting and electrical, window cleaning, front-desk concierge, and restoration of marble, metal, and wood surfaces. The company serves more than a thousand clients and maintains facilities totaling over 110 million square feet across the New England, Northeast, and Mid-Atlantic regions, including commercial buildings, government facilities, residential communities, schools, industrial sites, transportation hubs, and retail locations.

Headquartered in New York City, Guardian is based at 55 Water Street in New York, New York. It employs a mid-sized workforce and offers staffing and subject-matter expertise for facility maintenance across its service lines. The firm serves clients in commercial, government, residential, educational, industrial, and transportation facilities within the facilities services market.

Section iconCompany Overview

Phone number
SIC Code
1799 - Special Trade Contractors, Not Elsewhere Classified
NAICS Code
5612 - Facilities Support Services
Founded
1918
Employees
201-500

Section iconFunding & Financials

  • $1B - $10B

    Guardian Service Industries, Inc.'s revenue is estimated to be in the range of $1B - $10B

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