Parity › Who owns it › Rainbow Maintenance Services
Logo from its own websiteReported as investor-owned · not yet independently confirmed
Who owns Rainbow Maintenance Services?
The short answer
Rainbow Maintenance Services is reported to have been acquired by 4M Building Solutions (O2 Investment Partners). The source is a published report, not the owner's own announcement; Parity has not yet confirmed it against a primary source.
Acquisitions: 2026-07 · 2 brands under this parent
Quick facts
- Company
- Rainbow Maintenance Services
- Trade
- Cleaning
- Serves
- Businesses
- Based in
- Elgin, IL · All investor-owned companies in Illinois → Also: Addison, IL
- Reported owner
- 4M Building Solutions (O2 Investment Partners) · their site
- Acquired
- 2026-07
- Ownership disclosed?
- No: we found no mention of 4M Building Solutions (O2 Investment Partners) on the company’s home or about pages when we checked on 2026-10-24.
What its website says about its history
“Rainbow Maintenance Services, Inc has been keeping businesses clean since 1985.”Company website, captured by script 2026-10-24 :: https://rainbowms.com/
What it doesn’t say
Who has owned it since 2026: 4M Building Solutions (O2 Investment Partners), which acquired it in July 2026.About Rainbow Maintenance Services
Rainbow Maintenance Services provides Cleaning services in Elgin, IL. It still trades under its original local name and is reported to be owned by 4M Building Solutions (O2 Investment Partners).
What this means before you call
If the report is right, the name on the truck is not the owner. In investor-owned home-service groups, pricing books, the sales process and financing offers are commonly set centrally rather than by the local office. What to check before you sign →
Sources
- 4M Building Solutions acquires Bluegrass Commercial Cleaning and Rainbow Maintenance Services (ISSA industry news): source (2026-07-21)
- O2 Investment Partners portfolio lists 4M Building Solutions: source (2026-10-24)
- Rainbow Maintenance Services's own website (its words about its history): source (2026-10-24)
- Its own website shows this logo: source (2026-10-24)
- Its own site lists 2 offices, also in Addison, IL: source (2026-10-26)
Other brands under 4M Building Solutions (O2 Investment Partners)
Parity is an editorial publication. This entry rests on a third-party deal record that Parity has not yet confirmed against the owner’s own material; we make no claim about the quality of any individual technician. Represent Rainbow Maintenance Services or 4M Building Solutions (O2 Investment Partners)? Verify or contest this page · How we check · Corrections policy. Page generated 2026-10-26 from Parity’s records.