About Aon Affinity Professional Programs Practice

Since 1947, professionals have turned to Aon Affinity to protect their business and personal interests. Professionals, across a diversity of industries, need professional liability solutions, sometimes called malpractice or errors and omissions insurance, to help defend against claims that may arise as a result of work they perform.

When you purchase insurance through the custom programs offered through Aon Affinity, you will benefit from our:

  • Ability to leverage our deep professional liability expertise across a wide range of professions
  • Longstanding relationships with the industry’s top-rated professional liability carriers
  • Access to suitable options and competitive pricing
  • Customized coverage to help safeguard your career and financial future
  • Special program discounts to help reduce the cost of professional liability insurance

Strength in Numbers





Learn more about the professions we cover


Aon Insurance Services is the exclusive broker and administrator of the AICPA Member Insurance Programs. For more than 65 years we have provided CPAs, their firms and their families quality professional liability insurance and a comprehensive suite of personal and business insurance solutions. More than 25,000 CPA firms and 190,000 AICPA members have selected AICPA Member Insurance Programs to help meet their complex insurance needs.

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Lawyers and law firms have access to affordable professional liability insurance specific to their profession to help safeguard against the unique lawsuits arising from errors and omissions, failure to meet client expectations and attempts by clients to recoup financial losses in the delivery of legal services. We also offer a robust risk management program to help our clients avoid professional liability claims where possible.

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Healthcare Professionals

Nursing Professionals
Allied Healthcare
Healthcare Business
& Practice Owners
More than 575,000 nursing professionals choose affordable medical malpractice coverage through Nurses Service Organization (NSO) to help safeguard their career and financial well-being from malpractice claims. For more than 40 years, NSO has been providing insurance solutions and risk education to nurses. Today, more than 30 nursing associations endorse NSO.
Healthcare Providers Service Organization (HPSO) helps safeguard more than 90 healthcare professions and 425,000 healthcare providers. HPSO has earned the endorsement of more than 40 professional associations, providing affordable, customized medical malpractice insurance and risk management information, safeguarding livelihoods and professional reputations for those practicing Physical Therapy, Counseling, Pharmacy and other healthcare professions.


Our professional liability insurance (sometimes called malpractice insurance) provides coverage for your professionals and the business entity under one policy.  To complement our malpractice insurance, we offer business liability and other related insurance products, for more than 50 classes of healthcare facilities, over 25,000 healthcare businesses and approximately 1,500 schools.


More than 17,000 dentists nationwide rely on our affordable, comprehensive and innovative coverages that are contemporary with today’s dental practices.   Students, individual dentists and group practices, rely on our professional liability insurance coverage to help protect them against dentist malpractice claims. Learn more about the many premium credits we offer. 


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Architects & Engineers

The A&E Advantage program arranges professional liability coverage (also known as E&O insurance) for architectural, engineering and design firms with annual average billings up to $7,500,000. Embedded in the program are risk management & claim resources to help firms mitigate and avoid exposures to risk. Services include contract review and online webinars filed for Continuing Education. Admitted and available in all states except AK.

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Insurance Agents/Brokers

Insurance brokers/agents nationwide can access a full array of professional liability/E&O insurance and specialty insurance programs to purchase affordable, quality coverage they need to protect against claims arising from negligent acts, errors and omissions in the conduct of their business.

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Aon Affinity’s professional liability insurance for technology firms provides coverage for losses resulting from their services, products, content and network security breaches.  Should proprietary data be lost due a hardware failure during an installation—more than likely the client is going to be angry and file an errors & omissions claim.  The Aon program for technology firms covers a wide range of professionals: from data processors, hardware installers and programmers to software developers, website designers and technical support centers.

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Real Estate Agents/Brokers

Real estate agents face unique risks that can lead to allegations of an error or omission during the course of performing their professional services. Sellers may blame them for receiving too little, buyers for paying too much, or for a failure to disclose property issues that cost money. Aon Professional Liability Plus for real estate businesses protects them against a variety of professional negligence claims that can have a devastating impact on their reputation, finances and future. Our broad policy includes coverage for property managers, home inspectors, relocation services, title abstractors and other professionals associated with the real estate industry.

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Aon Affinity is the brand name for the brokerage and program administration operations of Affinity Insurance Services, Inc.; (TX 13695); (AR 100106022); in CA & MN, AIS Affinity Insurance Agency, Inc. (CA 0795465); in OK, AIS Affinity Insurance Services Inc.; in CA, Aon Affinity Insurance Services, Inc., (CA 0G94493), Aon Direct Insurance Administrators and Berkely Insurance Agency and in NY, AIS Affinity Insurance Agency.

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Professions served

policies in force

U.S. premium

Sponsoring partners

carrier relationships

insurance agent/broker partnerships

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Management Consultants

Consultants offer advice designed to assist their clients’ performance, revenue, and achieve their business goals.  Go over budget, miss a deadline or fail to produce their deliverables—even if they’ve done nothing wrong—the consultant could face allegations of professional negligence.  The Aon Professional Liability Plus Insurance plan provides coverage for consultants’ specific risks.  The program covers over 70 niche areas of consulting services: from strategic business planning, human resources and healthcare compliance; to efficiency experts, risk management and town planning.  

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Information Media

Aon is committed to providing broad professional liability insurance to a wide variety of information media risks including:  

  • Advertising Agencies
  • Cable/Satellite TV Service Providers 
  • Market Research    
  • Media Buyers
  • Photography
  • Publishers 
  • Radio Broadcasters    
  • Telecommunication Services    
  • Trademark Developers
  • Video Editing Services 

We offer customized coverage for information media services that protects your business from errors committed during marketing, publishing, creative design and other services.

Other Professions

Don’t see your profession listed? 
To find out more about how you can help safeguard your career and your financial future, contact us for personalized assistance and information on our Miscellaneous E&O insurance program.

Aon Affinity is the brand name for the brokerage and program administration operations of Affinity Insurance Services, Inc.; (TX 13695); (AR 100106022); in CA & MN, AIS Affinity Insurance Agency, Inc. (CA 0795465); in OK, AIS Affinity Insurance Services Inc.; in CA, Aon Affinity Insurance Services, Inc., (CA 0G94493), Aon Direct Insurance Administrators and Berkely Insurance Agency and in NY, AIS Affinity Insurance Agency.

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