Insights

Large client base Guardians servicing over 1,000 clients across multiple sectors indicates a strong cross-selling opportunity to existing accounts for additional facility services such as pest control, staffing, and security.

Comprehensive facility services The breadth of offerings (janitorial, security, engineering, pest control, lighting, window cleaning, concierge, restoration) enables upsell to clients seeking a single provider for multiple facility maintenance needs.

Geographic footprint Presence in New England, Northeast and Mid-Atlantic suggests potential expansion into nearby markets or cross-regional contracts with national or multi-site clients.

Scale and stability Revenue range of one to ten billion and 201-500 employees imply solid financial capacity to absorb large contract opportunities, competitive bidding, and investment in technology for efficiency.

Technology stack Utilization of cloud services, CMS, and security tools (AWS, Google Cloud, WordPress, Mimecast, Sage) provides a foundation for modernizing operations, data analytics, and integrated service dashboards to attract enterprise clients.

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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