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Giant Janitorial Service, Inc
Detroit, MI
Giant Janitorial Service, Inc. provides customized janitorial, building maintenance, and cleaning support for businesses throughout Michigan.
Giant Janitorial offers a wide variety of services and can customize any number of them to best suit the needs of your facility and company.
How we sourced this
Listed from the business's own website (https://giantjanitorial.com/) and from the City of Detroit's Business Certification Register, published as open data and maintained by the Civil Rights, Inclusion & Opportunity Department, both checked on 30 August 2026. Its city is taken from the City of Detroit's certification register. The card photograph comes from its own website.
- Women-owned — Certification body · source
The City of Detroit certifies this business as a Woman Owned Business Enterprise (WBE) in its Business Certification Register, published as open data. Certification is granted on documented ownership, not self-description.
- Certified WBE — Certification body · source
Held in the City of Detroit's Business Certification Register, published as open data by the Civil Rights, Inclusion & Opportunity Department.
Identity and ownership tags are never inferred. Certifications and recognitions belong to their respective organizations.
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