About Brendan Coen

I'm Brendan Coen, owner and technician at CoEntropy.net. I've lived and worked in Sonoma County for most of my life, and I started CoEntropy.net because I saw how much frustration people experience when technology doesn't work — and how hard it is to find help that's patient, honest, and doesn't talk down to you.

I hold a Bachelor's degree in Computer Science from Sonoma State University and have kept one foot firmly in the tech world throughout my career. I've recently earned CompTIA Security+ and CompTIA Network+ certifications — industry-standard credentials that demonstrate professional-level knowledge in cybersecurity and networking, the same certifications required by IT departments and U.S. government agencies.

Before launching CoEntropy.net, I spent 20 years as a real estate broker — which means I know how to work with people, explain complex things clearly, and show up when I say I will. Those skills matter just as much in tech support as anywhere else.

When I'm not solving tech problems, you'll find me on the trails or running marathons.

Brendan Coen, owner of CoEntropy.net IT support in Santa Rosa CA
CompTIA Security+ Certified CompTIA Network+ Certified

Credentials & Background

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Computer Science Degree

B.S. in Computer Science, Sonoma State University. A foundation in the fundamentals, not just on-the-job trial and error.

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CompTIA Security+

Industry-recognized cybersecurity certification. Means I know how threats work and how to protect you from them.

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CompTIA Network+

Professional-level networking certification covering setup, troubleshooting, and security of wired and wireless networks.

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TCM Security Practical Help Desk Associate

Inductry current standards for all manner of computer troubleshooting, from hardware diagnostics to Active Directory configuration

Community Involvement

Being part of Sonoma County means more than just working here. I'm actively involved in the community I serve:

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Historical Society of Santa Rosa — Board member and Treasurer
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Russian River Historical Society — Board member and Treasurer
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Russian River Rotary Club — Former Treasurer and President
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River to Coast Children's Services — 12-year board member, Treasurer, and Board Chair
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Russian Riverkeepers — Volunteer, creek and roadside cleanups
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The Sebtown Stewards — Volunteer, Highway 12 regular cleanups

Get In Touch

Ready to get your tech working? I'm available by phone, email, or the contact form on the Contact page.

📞 Call Now: (707) 595-0805