
John Williamson
Founder & Chief Consultant
John has over 20 years of experience spanning multiple layers of the IT and technology world. His expertise focuses on project management, technology strategy, and technical infrastructure.

A Bay Area tech consulting firm built around transparent communication, hand-picked technicians, and a single point of contact for everything tech.



Technology is hard, but it's harder when you don't feel a level of trust with who you work with. We set ourselves apart by putting an emphasis on transparent, common-sense approaches that you can understand. Here at TechInSF, good people skills are the foundation of our business.
We truly listen to our customers and produce solutions that get to the root of any problem, keeping you in the loop every step of the way for quality results. Our staff and the people we work with are hand-picked for consistency, professionalism, and their ability to communicate effectively. That's a promise.
Tons of vendors to manage, confusing terminology, and lots of money spent. This is usually how technology works for many small businesses across the country. Our unique approach allows our clients to leverage our entire team for a fraction of the cost of hiring a single junior IT staff member — a true to form one-stop-shop.
We act as an extension of our clients, with an eye on the cost-benefit. We streamline operations, so you can get back to running your business better, and more efficiently. You'll feel the difference.

Tell us what you're trying to do, and we'll tell you exactly what it takes to get there.
Some of the best and brightest minds the Bay has to offer, with the widest selection of services available.

Founder & Chief Consultant
John has over 20 years of experience spanning multiple layers of the IT and technology world. His expertise focuses on project management, technology strategy, and technical infrastructure.

Lead Consultant, IS Division
Angelo De Leon has 10+ years' experience in software engineering, IT, cybersecurity, and digital marketing. His AI practice spans business training, workflows, and agents, helping Bay Area startups and small businesses grow.

Lead Consultant, IT Division
IT professional with 9+ years in systems administration, network support, and server management. Expert in IT project management, delivering innovative tech solutions and digital transformation in the Bay Area.

Senior Consultant, PhysTech Division
Armando, a Senior Consultant in the PhysTech Division with 25+ years' experience, designs flawless ethernet networks for homes and Fortune 500s like AT&T, known for expertise, reliability, and future-proof solutions.

Senior Consultant, IS Division
Creative consultant with 15+ years in visual design, branding, advertising, and data-driven digital marketing. Expert in AI workflows, SaaS design, SEO, and startup growth across tech, education, and entertainment.

Senior Consultant, IS Division
Joem Casusi has over 15 years of experience in digital production and project management. He specializes in leading cross-functional teams, UX, and large-scale digital workstreams, delivering strategic solutions for clients worldwide.

Consultant, Hardware Division
Michael has over 11 years' experience in hardware repair and IT systems administration. He specializes in computer repairs, data recovery, and asset management.

Consultant, PhysTech Division
Carlos brings hands-on expertise and careful attention to detail to every wiring project, helping clients design safe, reliable electrical systems tailored to their needs, now and as they grow.

Consultant, Hardware Division
Dustin combines technical know-how with a sharp eye for design, helping clients build seamless audio-visual systems that are easy to use, reliable, and tailored to how their space actually works.

Consultant, IT Division
Jon has over 6 years' experience working in IT systems administration, asset management, and code development. He now provides expertise on enterprise AI usage.

Consultant, IS Division
Miabella Doerr is a Consultant in the IS Division with a B.S. in Engineering from the University of San Francisco, where she was part of the inaugural graduating class. She helps organizations streamline operations and deliver scalable IT solutions.

Consultant, IT Division
Ryan brings a background in MSP work, cloud operations, and hands-on infrastructure support, with datacenter experience across servers and high-availability systems.

Liaison Consultant
Jason has over 12 years' experience in software development, working for a variety of Fortune 500 companies. He specializes in full-stack development, product design, and low-code solutions.

Liaison Consultant
Todd has over 8 years' experience in various technical fields including secure transmissions and advanced hardware. He now focuses on IT security, specializing in risk assessment.


“Technology is amazing, but only when you control it. We make sure it doesn't control you.”
John Williamson
Founder & Chief Consultant