Sisu.
Determination when the work gets difficult. We stay steady, solve the problem in front of us, and follow through.
About Karhu
Strength in our purpose.
Commitment in our work.
We help reduce risk, harden environments, and keep critical systems online so organizations can focus on their people, their work, and their communities.
Our name. Our mindset.
Karhu translates to bear.
It reflects the strength and determination we bring to protecting our clients. Our work is grounded in a simple responsibility: understand what matters to each organization, and help safeguard it.
Founded by a veteran of military offensive and defensive cyber operations, Karhu Cyber brings that experience to protecting local governments, schools, and businesses. With deep roots in Michigan, we turn security priorities into practical improvements for the communities and organizations we serve.
We value direct conversations, clear ownership, and a team that takes pride in doing difficult work well.
Our core values
The way we show up.
Integrity.
Clear advice and honest reporting. You should understand where you stand, what needs attention, and why it matters.
Empowerment.
Share knowledge and build capability. We help your people make informed decisions and take ownership of security.
Expertise that keeps growing
The learning
never stops.
Learning is part of the fabric of Karhu. Our people keep pursuing new credentials, deepening their technical skills, and sharing what they learn. That curiosity carries into the work we do for you.
Offensive operations
Testing networks, applications, and wireless environments.
- OSCPOffSec Certified Professional
- OSWAOffSec Web Assessor
- OSWPOffSec Wireless Professional
Defense & response
Strengthening defenses, analyzing threats, and responding to incidents.
- CASP+CompTIA Advanced Security Practitioner
- CySA+CompTIA Cybersecurity Analyst
- Security+CompTIA
Engineering & leadership
Connecting secure infrastructure, cloud environments, and compliance to an effective security program.
- CISSPCertified Information Systems Security Professional
- CCNACisco Certified Network Associate
- CCPCMMC Certified Professional
Our team holds many additional certifications, and we continue to build our expertise through ongoing training and learning.
Build your next chapter
Bring your curiosity.
Make a difference.
We’re always interested in meeting people who take ownership, care about their craft, and want to keep learning.
Start with a conversation