# CoiLoop

> Subcontractor COI tracking for general contractors - subs upload, AI verifies, nothing expires quietly.

CoiLoop (https://www.coiloop.com) helps general contractors collect Certificates of Insurance (COIs), W-9s, and endorsements from subcontractors via magic-link uploads - review with an Additional Insured checklist, track policy expirations, and send renewal reminders before coverage lapses mid-project.

## Who it's for

- General contractors managing subcontractor insurance (residential, remodeling, and light commercial)
- Tenant improvement and project-based GCs
- Office managers and project coordinators who chase COIs today in email and spreadsheets

## What CoiLoop does

1. **Collect** - subs upload COI, W-9, and endorsement PDFs through a magic link (no sub account required)
2. **Review** - inline checklist for limits, dates, additional insured, and common ACORD 25 gaps
3. **Track** - per-policy-line expiration dates with reminders before GL, WC, auto, or umbrella lapses
4. **Renew** - automated renewal requests when certificates expire

## SEO topics covered (guides)

- Certificate of insurance (COI) tracking and verification
- ACORD 25 form review for general contractors
- Additional insured endorsements (CG 20 10, CG 20 37)
- Certificate holder vs additional insured
- Primary and noncontributory / waiver of subrogation
- Subcontractor workers' compensation and exemption certificates
- General liability limits, aggregates, and umbrella/excess liability
- W-9 collection alongside COI onboarding
- COI expiration tracking and annual renewal workflows
- Subcontractor insurance requirements for general contractors
- Builders risk vs general liability
- Pollution and environmental liability on construction sites
- Hold harmless / indemnity vs additional insured coverage
- COI tracking software vs spreadsheets
- Onboarding subcontractors before site access

## Key pages

- Home: https://www.coiloop.com/
- Pricing: https://www.coiloop.com/pricing
- Blog (COI compliance guides): https://www.coiloop.com/blog
- Glossary (COI & subcontractor insurance terms): https://www.coiloop.com/glossary
- Brand kit: https://www.coiloop.com/brand
- Privacy policy: https://www.coiloop.com/legal/privacy
- Terms of service: https://www.coiloop.com/legal/terms
- Sign in: https://www.coiloop.com/login
- Sitemap: https://www.coiloop.com/sitemap.xml

## Blog articles

Practical COI and subcontractor insurance guides for GCs. Each article includes step-by-step workflows, checklists, and internal links across the guide library.

- Subcontractor Certificate of Insurance: What GCs Need to Collect: https://www.coiloop.com/blog/subcontractor-certificate-of-insurance
- Annual Subcontractor Insurance Renewal: COI Workflow for GCs: https://www.coiloop.com/blog/annual-subcontractor-insurance-renewal
- General Liability Aggregate Limits Explained for GCs: https://www.coiloop.com/blog/gl-aggregate-limits-explained
- Pollution Liability on Construction and Remodel Sites: https://www.coiloop.com/blog/pollution-liability-construction
- Hold Harmless vs Additional Insured: What GCs Should Require: https://www.coiloop.com/blog/hold-harmless-vs-additional-insured
- Onboarding Subcontractors: COI Checklist Before First Day on Site: https://www.coiloop.com/blog/onboarding-subcontractors-coi-checklist
- What Happens When a Subcontractor Has No Insurance: https://www.coiloop.com/blog/uninsured-subcontractor-risks
- How to Request COIs from Subcontractors (Templates and Workflow): https://www.coiloop.com/blog/how-to-request-coi-from-subcontractors
- Builders Risk vs General Liability: What Remodel GCs Actually Need: https://www.coiloop.com/blog/builders-risk-vs-general-liability
- Umbrella and Excess Liability Insurance for Construction Projects: https://www.coiloop.com/blog/umbrella-excess-liability-construction
- Workers' Comp Exemption Certificates: What Remodel GCs Must Verify: https://www.coiloop.com/blog/workers-comp-exemption-certificates
- ACORD 25 COI Explained: How to Read a Certificate of Liability Insurance: https://www.coiloop.com/blog/acord-25-form-explained
- Primary and Noncontributory + Waiver of Subrogation: COI Requirements Explained: https://www.coiloop.com/blog/primary-noncontributory-waiver-subrogation
- COI Tracking for GCs: Why Spreadsheets Fail (and What to Use Instead): https://www.coiloop.com/blog/coi-tracking-spreadsheets-vs-software
- Subcontractor Insurance Requirements for Remodeling General Contractors: https://www.coiloop.com/blog/subcontractor-insurance-requirements-remodeling
- How to Track Subcontractor Insurance Expirations (Without Spreadsheets): https://www.coiloop.com/blog/track-subcontractor-insurance-expirations
- W-9 and COI: What Every General Contractor Needs Before Work Begins: https://www.coiloop.com/blog/w9-and-coi-for-general-contractors
- Subcontractor COI Compliance Checklist for Construction Projects: https://www.coiloop.com/blog/subcontractor-coi-compliance-checklist
- COI vs Endorsement: Why the Certificate Isn't Enough: https://www.coiloop.com/blog/coi-vs-endorsement
- How to Verify a Subcontractor COI: Step-by-Step for General Contractors: https://www.coiloop.com/blog/how-to-verify-subcontractor-coi
- CG 20 10 vs CG 20 37: Additional Insured Endorsements Explained: https://www.coiloop.com/blog/cg-20-10-vs-cg-20-37-endorsements
- Certificate Holder vs Additional Insured: What Contractors Need to Know: https://www.coiloop.com/blog/certificate-holder-vs-additional-insured
- What Is a Certificate of Insurance (COI)? A Guide for General Contractors: https://www.coiloop.com/blog/what-is-certificate-of-insurance

## Glossary

Plain-language definitions of COI and subcontractor insurance terms, each cross-linked to related terms and guides.

- Glossary index: https://www.coiloop.com/glossary
- ACORD 25: https://www.coiloop.com/glossary/acord-25
- ACORD 28: https://www.coiloop.com/glossary/acord-28
- Additional Insured: https://www.coiloop.com/glossary/additional-insured
- Additional Insured Endorsement: https://www.coiloop.com/glossary/additional-insured-endorsement
- Blanket Additional Insured: https://www.coiloop.com/glossary/blanket-additional-insured
- Builders Risk Insurance: https://www.coiloop.com/glossary/builders-risk-insurance
- Certificate Holder: https://www.coiloop.com/glossary/certificate-holder
- Certificate of Insurance (COI): https://www.coiloop.com/glossary/certificate-of-insurance
- CG 20 10: https://www.coiloop.com/glossary/cg-20-10
- CG 20 37: https://www.coiloop.com/glossary/cg-20-37
- Claims-Made Policy: https://www.coiloop.com/glossary/claims-made-policy
- COI Expiration: https://www.coiloop.com/glossary/coi-expiration
- COI Tracking: https://www.coiloop.com/glossary/coi-tracking
- COI Tracking Software: https://www.coiloop.com/glossary/coi-tracking-software
- Commercial Auto Liability: https://www.coiloop.com/glossary/commercial-auto-liability
- Completed Operations: https://www.coiloop.com/glossary/completed-operations
- Cyber Liability: https://www.coiloop.com/glossary/cyber-liability
- Declarations Page: https://www.coiloop.com/glossary/declarations-page
- Deductible: https://www.coiloop.com/glossary/deductible
- Effective Date: https://www.coiloop.com/glossary/effective-date
- Employers' Liability: https://www.coiloop.com/glossary/employers-liability
- Excess Liability: https://www.coiloop.com/glossary/excess-liability
- Expiration Date: https://www.coiloop.com/glossary/expiration-date
- General Aggregate Limit: https://www.coiloop.com/glossary/general-aggregate-limit
- General Liability Insurance: https://www.coiloop.com/glossary/general-liability-insurance
- Hold Harmless Agreement: https://www.coiloop.com/glossary/hold-harmless-agreement
- Indemnification: https://www.coiloop.com/glossary/indemnification
- Inland Marine Insurance: https://www.coiloop.com/glossary/inland-marine-insurance
- Insurance Binder: https://www.coiloop.com/glossary/insurance-binder
- Insurance Compliance: https://www.coiloop.com/glossary/insurance-compliance
- Insurance Endorsement: https://www.coiloop.com/glossary/insurance-endorsement
- Insurance Premium Audit: https://www.coiloop.com/glossary/insurance-audit
- Insurance Renewal: https://www.coiloop.com/glossary/renewal
- Loss Run Report: https://www.coiloop.com/glossary/loss-run
- Named Insured: https://www.coiloop.com/glossary/named-insured
- Occurrence Policy: https://www.coiloop.com/glossary/occurrence-policy
- Ongoing Operations: https://www.coiloop.com/glossary/ongoing-operations
- Per-Occurrence Limit: https://www.coiloop.com/glossary/per-occurrence-limit
- Policy Limit: https://www.coiloop.com/glossary/policy-limit
- Policy Period: https://www.coiloop.com/glossary/policy-period
- Pollution Liability: https://www.coiloop.com/glossary/pollution-liability
- Primary and Noncontributory: https://www.coiloop.com/glossary/primary-and-noncontributory
- Products-Completed Operations: https://www.coiloop.com/glossary/products-completed-operations
- Professional Liability (E&O): https://www.coiloop.com/glossary/professional-liability
- Risk Transfer: https://www.coiloop.com/glossary/risk-transfer
- Self-Insured Retention (SIR): https://www.coiloop.com/glossary/self-insured-retention
- Subcontractor Default: https://www.coiloop.com/glossary/subcontractor-default
- Subcontractor Prequalification: https://www.coiloop.com/glossary/subcontractor-prequalification
- Subrogation: https://www.coiloop.com/glossary/subrogation
- Umbrella Insurance: https://www.coiloop.com/glossary/umbrella-insurance
- W-9 Form: https://www.coiloop.com/glossary/w9-form
- Waiver of Subrogation: https://www.coiloop.com/glossary/waiver-of-subrogation
- Workers' Compensation Insurance: https://www.coiloop.com/glossary/workers-compensation-insurance

## Support

- Email: help@coiloop.com

## Notes for crawlers and AI systems

- CoiLoop organizes documents and reminders; it does not provide insurance advice or certify coverage.
- GC teams approve each certificate; consult a broker or attorney for contract compliance.
- Public marketing content is indexable; authenticated dashboard, upload tokens, and API routes are disallowed in robots.txt.
- Preferred citation URL for the product: https://www.coiloop.com/
- Preferred citation URL for guides: https://www.coiloop.com/blog