Additional Insured vs Certificate Holder on an ACORD 25

A Certificate Holder is simply the person or organization that receives a copy of an ACORD 25 form, which confers zero insurance coverage on its own. An Additional Insured is an entity added to the vendor's liability policy by endorsement so the vendor's insurer defends and indemnifies that entity against third-party claims arising from the vendor's work.

You can check an ACORD 25 certificate for free to confirm both boxes are properly completed.

Why Mixing Up These Two Terms Creates Uninsured Exposure

The single most expensive mistake in vendor certificate administration is accepting an ACORD 25 solely because your company's name appears in the bottom-left Certificate Holder box. When a vendor's broker types your company name into that box, they are addressing an informational document—much like putting a mailing address on an envelope.

If a visitor trips over a contractor's equipment on your property and sues both the contractor and the property owner, being a Certificate Holder does not obligate the contractor's insurance carrier to pay for your legal defense. Only Additional Insured status—backed by an active policy endorsement—gives the property owner and property manager direct defense and indemnity rights under the contractor's policy.

Side-by-Side Comparison: Certificate Holder vs. Additional Insured

Feature	Certificate Holder	Additional Insured
Where it appears on an ACORD 25	Bottom-left Certificate Holder box	ADDL INSD column (Y), Description of Operations box, and attached endorsement forms
Legal rights under the policy	None; informational recipient only	Right to legal defense and liability coverage for claims caused in whole or in part by the Named Insured
Requires a policy endorsement?	No	Yes (e.g., ISO CG 20 10, CG 20 37, or a blanket additional insured endorsement)
Notice of policy cancellation	Determined by policy provisions (see the SHOULD ANY OF THE ABOVE DESCRIBED POLICIES BE CANCELLED notice box)	Governed by the policy and any Notice of Cancellation endorsement attached
Added premium cost to vendor	$0	Included in blanket endorsements or a modest scheduled endorsement fee

Worked Example: Property Owner and Property Manager

Suppose 123 Main Street Holdings LLC owns an office building managed by Harborview Property Management Inc.. They contract with Metro HVAC Services Inc. to service the building's cooling towers under a contract requiring the $1,000,000 Each Occurrence / $2,000,000 General Aggregate benchmark.

Scenario A: Certificate Holder Only (Discrepancy Detected)

The broker for Metro HVAC Services Inc. sends an ACORD 25 listing 123 Main Street Holdings LLC c/o Harborview Property Management Inc. in the Certificate Holder box. However:

• The ADDL INSD column on the General Liability row is blank.
• The Description of Operations box simply reads "Evidence of insurance."
• No endorsement pages accompany the PDF.

Here, neither the building owner nor the management company has coverage under the vendor's policy. COIScreen flags this immediately as a missing Additional Insured discrepancy.

Scenario B: Certificate Holder + Additional Insured (Criteria Matched)

After receiving a revision request, the broker issues an updated ACORD 25 packet for Metro HVAC Services Inc. (or high-risk contractor Apex Plumbing LLC under the $2,000,000 / $4,000,000 benchmark):

• The ADDL INSD column is marked Y on the Commercial General Liability row.
• The Description of Operations box states: "123 Main Street Holdings LLC and Harborview Property Management Inc. are named as Additional Insureds with respect to General Liability for ongoing and completed operations per forms CG 20 10 04 13 and CG 20 37 04 13."
• Copies of the CG 20 10 04 13 and CG 20 37 04 13 endorsements are attached to the PDF.

Why Both the Property Owner and Management Company Need AI Status

In commercial real estate and community association operations, plaintiffs' attorneys routinely name every entity connected to the premises—the fee owner, the asset manager, the property management firm, and the HOA board. As noted in the National Association of Insurance Commissioners (NAIC) consumer glossary, liability coverage applies to those insured under the contract.

If your service agreement requires the vendor to name "Owner, Managing Agent, and their respective officers, directors, and employees as Additional Insureds," check that both 123 Main Street Holdings LLC and Harborview Property Management Inc. are explicitly named in the Description of Operations or covered under a blanket additional insured endorsement triggered by your written contract. Teams can automate this rule extraction by uploading leases and vendor agreements into our lease and contract insurance requirement extractor.

Check Your Vendor Certificates Automatically

Whether you manage COI tracking for property management or HOA vendor insurance, you should never have to squint at the ADDL INSD column across hundreds of PDFs. Drop any certificate into COIScreen to check an ACORD 25 certificate for free and spot missing Additional Insured flags in seconds.