St. Charles County IT Company

Gain a cost-saving boost for your productivity with a reliable local IT company that resolves your IT issues faster.

Maximize your productivity by minimizing your IT issues by parting with one of the most trusted local IT companies.

Why choose Onsite Computer Consulting Services Inc. as your IT company?

Get rapid responses to IT issues with IT support that responds to your calls within an average of 15 minutes

Return to work faster with reliable assistance that resolves your IT challenges in 29.5 minutes or less

Enhance your security strength with data protection that includes network monitoring and SOC and SIEM access

Gain high-ROI IT services faster with an expedited kickoff process that gets everything started within 14 days

Add an experienced voice to your team with a seasoned vCIO who helps you develop custom IT strategies

Request a Quote for our IT Services Company

I Am Grateful to Have Onsite Computer Consulting As a Member of MY Team

I exclusively rely on the team at Onsite Computer Consulting to support my busy Dental Practice. Whether through increased network reliability, off site backup systems, compliance in data transmission and storage– this is a team of miracle workers. After 20 years of partnership, I am grateful to have Onsite Computer Consulting as part of the Licata Dental Team!

Dr. Faye Licata, DMD
Licata Dental


Response and service from our team of IT experts

28+ Years

As one of the most trusted local IT firms


Customer satisfaction rating for our IT company
Local Businesses Trust Our IT Services Company

Stop Losing Time to IT Issues With Our IT Company in St. Charles County

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Experience the Benefits of Working With a Trusted IT Company

Managed IT Services

Experience unparalleled efficiency with our managed IT services. We monitor and manage your network 24/7/365, ensuring maximum productivity.

Cloud Services

Elevate your business to the cloud with migration support, security, and consulting tailored for seamless integration and optimal performance.


Rest easy with advanced cybersecurity services that guard against threats through round-the-clock monitoring and state-of-the-art protection solutions.

IT Support

Get swift, efficient IT support. Our team responds to your requests within 15 minutes, prioritizing your needs to help you reclaim your workday.

IT Helpdesk

Let us be your go-to for IT assistance. We offer round-the-clock responsive support that resolves your issues within an average of 29.5 minutes.

Network Support

Build a strong IT backbone with network support that covers cabling, security and managed NOC services to maximize your performance and avoid downtime.

IT Consulting

Shape your IT future with professional consulting services led by experienced vCIOs who provide strategic support that influences educated decision-making.

Data Backup and Disaster Recovery

Protect your most valuable asset with our robust data backup and disaster recovery that ensures swift data restoration, minimizing downtime and data loss risks.

Compliance Services

Navigate compliance confidently. We specialize in HIPAA, PCI, NIST, and CMMC, ensuring your IT systems meet the highest regulatory standards.

Keep Your Data Out of Harm’s Way With Our Advanced Cybersecurity Services

Cybercrime is on the rise and is expected to cost businesses like yours $10.5 trillion annually by 2025. That’s a hefty price to pay, but the good news is that you can avoid it by partnering with our IT services company. OCCSI’s advanced cybersecurity services offer comprehensive protection that adapts to the ever-evolving cyber landscape, including:

  • Zero Trust security
  • Endpoint protection
  • 24/7/365 monitoring
  • Compliance monitoring
  • SOC and SIEM support
  • Email and spam protection
  • Unified Threat Management (UTM)
  • Managed Detection and Response (MDR)

Onsite Computer Consulting

IT Company in St. Charles County

Gain a Valuable Technology Partner With a Dedicated vCIO

Did you know that only 0.5% of IT projects are successful, and 75% of them go over their budgets?

While those figures may seem alarming, expert advice can help you avoid those situations.

As one of the premier local IT firms, we pair you with a dedicated vCIO who delivers expert advice and support, aligning your IT strategy with your business goals with:

  • Proactive IT planning
  • Tailored IT roadmaps
  • Compliance consulting
  • IT project management
  • Business continuity consulting
  • Budget and resource management
  • IT strategies that help you reach your objectives
IT Company in St. Charles County

Avoid costly outages and downtime when you choose our IT management services.

Stay Compliant With Reliable Support From Our IT Services Company

Staying compliant in a complex regulatory environment can be challenging. Our compliance services simplify this process, ensuring your IT systems adhere to the highest standards.

Our IT company can assist you with documentation and system scanning that helps you achieve compliance with the following regulatory frameworks:

  • PCI
  • NIST
  • CMMC

Choose an IT Company Dedicated to a Flexible Customer Service Experience

An IT services company that locks you into a long-term contract while delivering low-quality services and leaving issues unresolved leads to wasted money and frustration.

You deserve to work with an IT partner that provides top-quality services and support. That’s why we offer one-year contracts that include a 60-day opt-out clause.

If you are unsatisfied with our services, simply cancel your contract within the 60-day period and move on, no questions asked.

We also offer a two-year warranty for our custom systems, which entails:

  • Full coverage for the first year
  • Continued support for the second year
  • Customized solutions designed specifically for your business needs

Frequently Asked Questions About Our IT Company

1) How does your IT company improve my productivity?

An IT company like OCCSI plays a pivotal role in boosting your business’s productivity.

By implementing efficient technology solutions and providing rapid IT support, we minimize downtime and streamline operations.

Our average issue resolution time of just 29.5 minutes means your team spends less time waiting and more time achieving.

2) What sets you apart from other IT services companies?

Unlike other local IT services companies, we stand out with our custom systems warranty, 60-day opt-out clause, and hands-on approach to IT management.

We ensure that IT solutions are not just solutions but enhancements to your business efficiency and security.

Our commitment to your success is reflected in our high customer satisfaction rating of 98.68%.

3) How does your IT company improve my cybersecurity?

As a leading IT company, our team prioritizes your cybersecurity.

Our advanced cybersecurity services, including 24/7/365 monitoring, ensure that your business is safeguarded against the latest digital threats.

In addition, our proactive approach, including regular updates and employee training, keeps your business ahead in the ever-evolving landscape of cyber threats.

4) Why is choosing the right IT services company crucial for compliance?

Choosing the right IT services company is vital for compliance management.

OCCSI’s extensive expertise with regulatory standards like HIPAA, PCI, NIST, and CMMC ensures that your IT infrastructure aligns with legal requirements.

Our comprehensive compliance services, including system scanning and documentation, help you navigate the complexities of regulatory compliance effortlessly.

5) How does your IT company handle IT emergencies?

Responsiveness in IT emergencies sets a skilled IT company apart from the pack.

At OCCSI, we pride ourselves on our rapid response, with a technician addressing your issue within 15 minutes of receiving a call.

This commitment to quick and effective issue resolution ensures minimal disruption to your business operations, highlighting our dedication to customer service excellence.