Welcome to the CallahanTech website.

This site was created so you could get an idea as to what CallahanTech is, and the services they offer. Feel free to peruse the links relating to our services, the schedule of events, technical material for download, or use the Contact form for more information, comments, and requests.

CallahanTech provides technical training, writing, and consulting (and more) to businesses big and small, with almost 20 years of experience in the field of Microsoft products.

With a special interest in assisting small to medium businesses, municipalities, and non-profits, we are dedicated to helping our customers get the most out of their technology on a limited budget.

Your business does not need to be a fortune 500 company to have a network and solutions that truly and dependably work.

Please see the About link for more information about the company's details.

New Directions 

CallahanTech has been to exploring opportunities in training, consulting, and writing in the field of Linux, Drupal, and Novell (SUSE). In addition, Cloud offerings, such as Office 365 (O365), G Suite, Zoho, and Salesforce, are being examined.

In today's economic climate, more and more customers are considering moving away from Microsoft in a bid to relieve themselves of the burden of increasing licensing issues and the growing difficulties in terms of deployment, update management, and software management. In terms of being forced to the Cloud, many customers are facing migration issues and loss of control of the products they are paying a subscription for. With unexpected updates to underlying code, feature loss, and changes to subscription plans after purchase, clients can be reluctant to move away from their on-premises infrastructure. In an attempt to help support those clients, CallahanTech is increasing its investment in alternatives to the Microsoft platform. Please use the Contact form for more information.

Online Speaking Events

These events occur on an ongoing basis. If you'd like to join the audience, visit the callahanSPF facebook group.

Or follow @cacallahan on twitter for RFAs (request from audience) for online events. Please respond for invitations.

Recent and Upcoming In-person Events

April 2018
SharePoint Cincy-
Cincinnati, OH


February 2018
MCT Summit-
Bellevue, WA


September 2017
Microsoft Ignite-
Orlando, FL

Speaking and HOL staff

October 2016
SEF Unity Connect
- Stockholm, Sweden

August 2016
SharePoint Saturday-
Pittsburgh, PA


April 2016
SharePoint Cincy- Cincinnati , OH