The Hidden Liability Trap: Why Adding Your Client as an Additional Insured Can Backfire
Shaun Kelly, The Liberty Company, CALSAGA Preferred Broker
If you operate a contract security company in California, chances are you have received a client request that reads something like this: “Please add us as an Additional Insured on your general liability policy.” On the surface, this sounds like a routine administrative task a simple endorsement to keep your client happy and the contract moving forward. In reality, agreeing to this request without fully understanding its implications can expose your company to significant financial and legal risk.
Let’s break down exactly why this is a problem and what you should do instead.
What Does “Additional Insured” Actually Mean?
When you add a party as an Additional Insured on your commercial general liability (GL) policy, you are extending the coverage of your own insurance to protect them. That means your policy, and your policy limits, are now on the line for claims that arise not just from your own actions, but potentially from your client’s actions as well, depending on how the endorsement is written.
This is the crux of the issue. Security contractors are hired to manage risk on someone else’s property. When something goes wrong, an incident involving a visitor, a premises liability claim, or an allegation of negligent security, the question of who is responsible can become deeply complicated. If your client is an Additional Insured on your policy, your insurer may be compelled to defend and indemnify them, even when the incident had nothing to do with your guards’ conduct.
The Core Risks for Security Contractors
- Erosion of Your Policy Limits: Every dollar paid to defend or settle a claim on behalf of your client comes out of your aggregate policy limits. A single large premises liability suit brought against your client could exhaust the limits your own business depends on for protection.
- Coverage for Your Client’s Own Negligence: Broad Additional Insured endorsements can require your policy to respond to claims caused by your client’s independent negligence, conduct entirely outside your control. You could find your insurance paying for a client’s slip-and-fall claim that has nothing to do with your security services.
- Premium Increases and Non-Renewal Risk: When claims are paid on behalf of Additional Insureds, those losses are attributed to your policy’s loss history. This can trigger premium increases at renewal or worse, prompt your insurer to non-renew your coverage altogether.
- Contractual Liability Overreach: Many service agreements include indemnification language that, when combined with an Additional Insured endorsement, creates a scenario where you are contractually obligated to hold your client harmless for a much broader scope of liability than your original work warrants.
Not All Additional Insured Endorsements Are Created Equal
The specific language of the endorsement matters enormously. There is a significant difference between an endorsement that extends coverage only for liability arising out of your operations (a narrower, more defensible form) versus one that extends coverage for the Additional Insured’s own acts and omissions. Many clients and even some brokers unfamiliar with the security industry will request or issue the broader version without recognizing the consequences.
Security contractors should work with a broker who understands the nuances of these endorsements in the context of your industry and can help you negotiate endorsement language that is reasonable, limited in scope, and protective of your interests.
Best Practices for Managing Additional Insured Requests
Before agreeing to any Additional Insured request, consider the following steps:
- Review the contract language carefully. Understand exactly what indemnification obligations you are agreeing to alongside the Additional Insured status.
- Request a narrowly worded endorsement. Insist on language that limits coverage to liability “arising out of your ongoing operations” on behalf of the Additional Insured, not their independent acts.
- Consult your broker before signing. Do not simply hand over a certificate of insurance with an Additional Insured endorsement without first understanding the downstream exposure.
- Ensure your contract includes a mutual indemnification clause. Your client should bear responsibility for their own negligent acts, and your agreement should reflect that clearly.
The Bottom Line
Adding a client as an Additional Insured is sometimes a contractual necessity but it should never be done reflexively or without careful analysis. For security contractors operating in a high-liability environment, the stakes are too high to treat insurance endorsements as a formality. Every agreement you sign has the potential to reshape your coverage, your costs, and your risk exposure.
Shaun Kelly serves as Vice President of the Security Practice at The Liberty Company Insurance Brokers, one of the nation’s leading independent insurance brokerage firms. With deep expertise in the contract security industry, Shaun has built a reputation as a trusted advisor to security company owners and executives across California, helping them navigate complex coverage decisions, manage contractual risk, and build insurance programs that actually protect their business when it matters most. As the preferred insurance and risk management partner for CALSAGA, The Liberty Company is proud to support the California security industry with specialized knowledge and dedicated service.
Have questions about your Additional Insured endorsements, contract language, or your current coverage program? Reach out to Shaun directly!
Shaun Kelly, VP Security Practice
The Liberty Company Insurance Brokers, LLC