How a serial entrepreneur is blending his resume from technology and operations with a powerhouse insurance agency
In 2025, when Glenn Fisher joined Cornstone Companies as their COO, they'd already crossed $10MM in revenue, with deep, niche Commercial expertise, Employee Benefits, and Personal Lines. At the pace Cornerstone had been going, growth was a known outcome, but it was time to bring the same excellence to all facets of their business.
Brief History
Founded: In 2013, Sean Bowlby and David Parkhurst teamed up to build Cornerstone Companies. Sean and David both have deep expertise in Manufacturing, Construction, and connections across Kansas City.
Joined Indium: In 2025, Glenn met the Indium team while at NetVu. From there, we've been reimagining what growth looks like together and helping to aggregate knowledge across technology, industries, and carriers.
Operations
Agency Management System: Vertafore's AMS360
Active attendee at NetVu conferences.
CRM: Vertafore's AgencyZoom
Pipelines built to help both inside and outside producers work through commercial and personal submissions.
Personal Lines Rater: Vertafore's PLRating
Integrated with Indium's Side by Side rating capabilities for access to additional markets on a transactional level.
Forms Solutions: Quotamation
Instant Data Lookup, Enter just a name, DOB, and address and instantly pull home info, additional household drivers, and vehicle details. This data then connects to Embedded Quoting to provide quotes on your website or to your team internally.
Content & Marketing: Zywave
Access to an industry-leading library of more than 8,000 materials covering all major lines of business, including commercial lines, employee benefits and personal lines.
Markets
CNA: Aggregated with Indium, Cornerstone Company continues it's multi-million dollar partnership with CNA. The additional support across underwriting, industry expertise, and financial performance has strengthened this partnership.
RT Specialty: Finding a responsive wholesaler with deep expertise across niches can be challenging. RT has spent additional time understanding Cornerstone's needs and objectives to deliver a customized team.
Travelers: With deep relationships prior to joining Indium, Cornerstone maintains a direct appointment with Indium. Indium's Brokerage team helps support Cornerstone when risks need to be placed in Global or National practice areas.
Setting Goals and Promises to Help Navigate Change
"Our focus is transitioning more to growth and supporting our team to help us grow."
Glenn breaks down the three things Cornerstone is focused on in 2026:
Sales team development and support: $20K of net new revenue opportunity per week
Technology focused on improving the Employee Benefits experience
Continue to refine and optimize initiatives that started in 2025
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