Skip to content

Bismarck & Mandan, North Dakota

Family-run. Based in Bismarck.

Websites, software, 3D models and marketing for local businesses, looked after every month.

Text Cole Start a project

Or call (701) 391-5973 or email ColeKingsley@SentinelSMB.co.

Who we are

The people who do the work.

Cole Kingsley, founder of SentinelSMB

Cole Kingsley

Founder. Builds it, runs it, looks after it.

Cole has lived in the Bismarck area his whole life. He builds the websites, the software and the 3D models, hosts them and makes your changes.

He built the 24/7 monitoring platform himself. Before SentinelSMB he spent years in sales, so every site is built around getting the call, not winning a design award.

  • Replies within one business day
  • Builds and hosts everything himself
  • Plain-English answers, no jargon
Text Cole Email Cole
LaRoy Kingsley

LaRoy Kingsley

Senior Advisor

LaRoy co-founded Kranzler Kingsley Advertising in Bismarck and ran it for 34 years.

  • Co-founder, Kranzler Kingsley Advertising
  • 34 years running a Bismarck advertising agency

How we work

You see the price first. You approve it before it goes live.

  1. Step 1

    Talk

    A free conversation about your business and what the site, software or marketing has to do. You get the price in writing before any work starts.

  2. Step 2

    Build

    You get a working preview link early and tell us what to change. Nothing goes live until you approve it.

  3. Step 3

    Launch and look after it

    We host it, keep it updated and make your edits. When you need a change, you text the person who built it.

  • A fixed price in writing before any work starts. Nothing billed beyond it without your OK.
  • Your domain is registered in your name. Leave anytime and take your site with you.
  • Texts only go to customers who opted in. Anyone can reply STOP.
  • Every 3D model is labeled illustrative, and you confirm the dimensions before it goes live.

What we build

Five things. All under one roof.

Where we work

Bismarck, Mandan, Lincoln and the region.

We meet in person when it helps and work from Bismarck the rest of the time.

The preview link, the texts and the one-business-day reply work the same wherever you are.

On the record

A real company you can look up.

  • SentinelSMB LLC, registered in North Dakota
  • EIN on file with the IRS
  • Errors and omissions insurance, $1M per claim, $2M aggregate
  • Terms of service and privacy policy published: terms, privacy

24/7 cybersecurity monitoring

Where SentinelSMB started.

SentinelSMB began as a 24/7 cybersecurity monitoring service for small businesses.

Someone watches the logins to Microsoft 365, Google Workspace, AWS and Cloudflare and texts you in plain English when something looks wrong. It works alongside the IT provider you already have.

  • 36 detection engines across four cloud services
  • Alerts by text, email, Slack or Teams, with steps to fix it
  • Setup in under 10 minutes. Nothing to install on your computers.
How monitoring works Run a free security scan

Industries we know

Tell us what you need.

A text is enough to start. Cole replies within one business day with questions or a first look at scope and price.

Text Cole Start a project