Built by people who understand the work.
Sentinel Tech Systems LLC develops specialized software grounded in real-world workflows, practical experience, and hands-on engineering.
From public safety to reptile management and emerging healthcare technology, every project starts with a specific problem worth solving.
HeliosPublic safety / Development↗
HerigenReptile management / Beta↗
HestynHealthcare AI / Research↗THREE IDENTITIES. ONE COMPANY.From the work.
Into the software.
Sentinel Tech Systems began with firsthand experience in public safety and the challenges of everyday operational workflows. That same practical approach now informs Herigen, while Hestyn is beginning as research into healthcare technology.
Our storyUnderstand the workflow before writing software around it.
Build and refine focused tools in-house.
Be upfront about what works today and what's still in development.
Different industries.
Purpose-built software.
Three distinct projects, with their own purpose, visual identity and development stage.

Helios
Active development / pilotDevelopment covers digital citations and warnings, operational views, evidence records, printing and role-based interfaces.
Explore Helios
Herigen
Beta softwareBeta software with collection records, care-event histories, genetics and pairing tools, and breeding records.
Explore Herigen
Hestyn
Early researchA research-stage initiative investigating healthcare developer environments and the technical requirements of EHR connectivity.
Explore HestynSoftware beyond
the concept stage.
Helios and Herigen have working application code. Hestyn is earlier: research, not a clinical application.
Operational workflows
Citation and warning processes, operational views, evidence records and role-based interfaces.
Collection & genetics tools
Animal histories, feeding and shedding records, genotype information, pairing calculations and breeding tracking.
Research & exploration
Learning the healthcare developer environment and investigating potential EHR integration approaches.
Have an idea?
Or a pain point worth solving?
Maybe it’s a repetitive task, a frustrating workflow, or a software idea you haven’t found the right tool for. We’re open to hearing about new development opportunities.
Tell us what you’re trying to solve, and we can talk through whether there’s a practical way we might help.
Tell us about your ideaNo polished pitch needed.
What slows you down? Who does it affect? What would a better process look like?

Built with
firsthand experience.
Sentinel Tech Systems was founded by Andrew Knudsen. His law enforcement background helped shape the company's first public safety software work.
Today, Sentinel develops separate projects for public safety and reptile management while researching potential healthcare applications under Hestyn.
Meet the founderDifferent stages. Clear expectations.
Product availability and capabilities may change as the projects are developed and tested.
Interested in
what we’re building?
Questions about Helios, Herigen, Hestyn, or a possible new project? We’d be glad to hear from you.
Contact Sentinel