September 19, 2025
Healthiest Employers® was started in 2009 as a way to celebrate companies that are putting their people first by investing in the health of their employees. In partnership with Springbuk, we are pleased to announce the 2025 Healthiest Employers of Illinois.
Congratulations to this year’s winners! Write ups are conducted on the top winner in each category.
50 to 499 Employees
1st Connor & Gallagher OneSource
Lisle, Illinois
117 Employees
Connor & Gallagher OneSource (CGO), founded in 1997 and based in Lisle, Illinois, is an independent insurance broker that supports small and mid-sized organizations. The firm provides services in business insurance, employee benefits, HR, payroll, and 401k plan management, with dedicated in-house consultants and customer service teams specializing in each area.
Connor & Gallagher OneSource takes a comprehensive and integrated approach to employee wellness, with a strong focus on mental health. The team is trained to recognize signs of suicide and address workplace violence, while the wellness manager leads seminars on topics such as stress and anxiety management. The company also offers ongoing yoga classes, an extended employee assistance program for additional counseling, and actively increases staffing levels to manage workloads and prevent employee burnout.
Connor & Gallagher OneSource operates in a hybrid environment that combines in-office and remote work. Employees are assigned one designated in-office day and may select a second day that best fits their schedule. The workplace features collaboration zones and quiet areas to support different work styles, while remote employees are provided equal access to opportunities, information, and visibility. To maintain strong connections, the company hosts regular team-building events and virtual check-ins.
2nd V3 Companies – Woodridge, Illinois – 358 Employees
3rd BHMG Engineers, Inc. – St. Louis, Missouri (Local Office: Collinsville) – 90 Employees
500 to 1,999 Employees
1st Riverside Healthcare
Kankakee, Illinois
1,858 Employees
Riverside Healthcare is a comprehensive healthcare system serving patients across Kankakee, Iroquois, Will, Grundy counties, and beyond. Its 300-bed Riverside Medical Center is a nationally recognized, award-winning Level II Trauma hospital, offering leading programs in heart care, cancer care, neurosurgery, and orthopedics. The system has advanced emergency care with a remodeled ER designed to improve patient flow, enhance technology, strengthen safety through advanced monitoring, and prioritize patient privacy. Riverside is the region’s only Magnet® Recognized hospital for nursing excellence. In 2024, it earned both a Military Employer Designation and a Mental Health America Platinum Bell Seal, highlighting its commitment to workplace mental health and employee support.
Riverside Healthcare is a leading healthcare system serving communities across Kankakee, Iroquois, Will, Grundy counties, and beyond. Its flagship facility, the 300-bed Riverside Medical Center, is a nationally recognized Level II Trauma hospital known for award-winning programs in heart care, cancer care, neurosurgery, and orthopedics. The system has elevated emergency services through a remodeled ER that improves patient flow, integrates advanced technology, enhances safety with upgraded monitoring, and emphasizes privacy. Riverside also stands out as the region’s only Magnet® Recognized hospital for nursing excellence. In 2024, it received both a Military Employer Designation and a Mental Health America Platinum Bell Seal, underscoring its dedication to workplace mental health and employee well-being.
The REACH Program is a comprehensive initiative designed to support physical, mental, financial, and social health through a structured three-tiered model. In 2024, the EAP received the Platinum Bell Seal Award from Mental Health America, recognizing its excellence and meaningful impact.
2nd AssetMark – Concord, California (Local Office: Chicago) – 1,032 Employees
3rd West Monroe – Chicago, Illinois – 1,683 Employees
4th Sikich LLC – Naperville, Illinois – 1,634 Employees
5th Philadelphia Insurance Companies – Bala Cynwyd, Pennsylvania (Local Office: Naperville) – 1,926 Employees
6th Busey – Champaign, Illinois – 1,486 Employees
7th Midwestern University – Downers Grove, Illinois – 1,707 Employees
8th Barilla America, Inc. – Northbrook, Illinois – 600 Employees
2,000 to 4,999 Employees
1st CNO Financial Group
Carmel, Indiana (Local Office: Chicago)
3,438 Employees
CNO Financial Group, Inc. serves middle-income Americans by offering life and health insurance, annuities, financial services, and workforce benefits through its family of brands: Bankers Life, Colonial Penn, Optavise, and Washington National. CNO helps protect the health, income, and retirement needs of its customers. The company’s network includes 3,500 associates, 4,700 exclusive agents, and over 5,000 independent partner agents, all dedicated to guiding individuals, families, and businesses through key financial decisions.
CNO Financial Group emphasizes the strong connection between associate well-being and the overall employee experience. Rooted in its People Focus value, CNO fosters a culture that supports, celebrates, and connects its diverse workforce, creating an inclusive environment where all associates feel valued and empowered.
The company integrates well-being into its Business Resource Groups (BRGs), ensuring the unique needs of its diverse associates are addressed through social connection and targeted support. In 2024, CNO focused on a range of relevant topics, including substance misuse, mental and physical health within the Latinx community, caregiver stress, and veteran PTSD and grief. In collaboration with BRGs, CNO also hosted Mental Health First Aid trainings to raise awareness and provide valuable resources.
These efforts contributed to high associate sentiment: 93% reported feeling safe at work, and 82% felt their mental well-being was supported. CNO’s 2024–2025 social calendar reflects a continued investment in associate connection and morale, including events such as a March Madness viewing party, the Corporate Office Grand Opening, Benefits & Well-being Expos, a Holiday Giving Event supporting winter and hunger relief efforts, a Habitat for Humanity build, and a Summer Social & Farmers Market.
2nd Bi-State Development Agency – St. Louis, Missouri (Local Office: East St. Louis) – 2,200 Employees
3rd Evertrue – St. Louis, Missouri (Local Office: Springfield) – 2,192 Employees
4th Gilbane – Providence, Rhode Island (Local Office: Chicago) – 3,075 Employees
5th MongoDB – New York, New York (Local Office: Chicago) – 2,763 Employees
5,000+ Employees
1st U-Haul International
Phoenix, Arizona
16,477 Employees
Since 1945, U-Haul has been the No. 1 choice of do-it-yourself movers, with a network of more than 23,000 locations across all 50 states and 10 Canadian provinces. U-Haul Truck Share 24/7 offers secure access to U-Haul trucks every hour of every day through the customer dispatch option on their smartphones and our proprietary Live Verify technology. Our customers' patronage has enabled the U-Haul fleet to grow to approximately 186,000 trucks, 128,000 trailers, and 46,000 towing devices. U-Haul is the third largest self-storage operator in North America and offers 876,000 rentable storage units and 75.1 million square feet of self-storage space at owned and managed facilities. U-Haul is the largest retailer of propane in the U.S., and continues to be the largest installer of permanent trailer hitches in the automotive aftermarket industry. U-Haul has been recognized repeatedly as a leading “Best for Vets” employer and was recently named one of the 15 Healthiest Workplaces in America.
U-Haul offers a unique and transformative benefit through its partnership with Virta, a clinically proven program that helps reverse Type 2 diabetes, pre-diabetes, and supports significant weight loss. This science-based nutritional therapy, combined with advanced telehealth, enables Team Members to lower A1c levels, reduce or eliminate insulin use, and achieve sustainable health improvements without the risks or side effects of medications or surgery.
The program emphasizes long-term lifestyle changes, leading to lasting outcomes. Team Members have shared powerful testimonials, including relief from chronic pain and prevention of limb loss. Over the past year, participation in Virta has increased by 22.7%, and chronic condition care gaps have improved by 13.7%. Through Virta, U-Haul is empowering its workforce to live healthier, more fulfilling lives while reducing dependence on medication and healthcare costs.
