About ASI

We will partner with your team to evaluate and deploy software solutions that will benefit your business and accelerate your success.

Robust Service. Deep Relationships

Located in Columbia, South Carolina, Accounting Systems, Inc. (ASI) began in 1986. We began by helping companies purchase and implement accounting software. As our clientele expanded and their businesses grew, they looked to us to provide more complex systems. In over thirty years we have become much more than a software vendor.

At ASI, our focus is on your growing business. Our goal is to see your business thrive by providing the most effective mid-market software solution available. Does your business need accounting, distribution, ERP, or manufacturing software?

What about e-commerce, website integration, or custom-developed software? Or are you looking for hosted or cloud-based applications? Contact ASI for technical assistance today.

The ASI team is ready to help your business succeed


Sage 100 Customer Service Excellence

At Accounting Systems, Inc., we are dedicated to providing ongoing Sage software support for your accounting software. Whether you need support for Sage 100 (formerly MAS 90 and MAS 200) or Sage BusinessWorks, we are here to help.

Our highly skilled team of software and technical experts is able to address your inquiry within minutes. So, if you need immediate assistance, please call us at (803) 252-6154.

ASI Provides Award-Winning Customer Service

ASI participates in an annual Customer Loyalty Program in which our clients are asked to provide feedback on our service, support, and a number of other factors.

The companies with the highest scores and overall customer satisfaction are recognized with the “Customer Excellence” award from Sage.

We are thrilled to have been recognized as a winner for both the 2012 fiscal year at the 2013 Sage Summit and the 2013 fiscal year at the 2014 Sage Summit, Sage’s annual conference.

Our Process

What to Expect When You Contact ASI?

step one

Schedule your
complimentary call

We'll schedule a complimentary phone consultation with your team. During the call, we will ask you about your short-term and long-term business goals & existing pain points.

Then we can determine the ERP solutions and training you will need to achieve your goals.

Step two

Discuss solutions based
on our findings

First, we'll determine if working together will be a good fit. Then, we’ll consider strategies and software solutions to help you achieve your goals.

In summary, we are less interested in pushing a particular ERP software system or add-on solution and want to help your business grow and thrive.


Plan and implement
the selected solution

Next, we'll determine the best solution for your business. Then we'll create a plan for implementation and work with your team to install the solution.

In conclusion, we want you to focus on doing what you know best, and let ASI focus on delivering tools that benefit you.

Businesswoman reviewing her business data

More About ASI

Headquartered in Columbia, South Carolina, ASI has a strong presence in the southeast. Our team works with many businesses in Columbia, Charleston, Greenville, and Spartanburg.

We are spread out throughout North America. So, no matter where you are located, we have team members ready to help with software installation, start-up, and support and maintenance whenever and wherever it is needed.

At ASI, we really do account for everything. Contact us for more information about our accounting software services and other business software and communication solutions. We look forward to speaking with you.

What ASIFocus Customers Are Saying…


“We were really surprised by the improvement. The information we get out of the system is much more powerful than expected, and the ASI team has been with us every step of the way, from go-live to ongoing support.”

Donna Tolar

Accounting Manager, Sealoflex

“I’ve been extremely impressed by the level of customer service provided by ASI. They’re always available when I call with a question, and even came down to help me over a holiday weekend when an upgrade knocked out most of my custom invoicing on billing day!”

Michele Greeen

Controller, American Telesis

“Our business has benefited greatly from our partnership with ASI. Their expertise and knowledge of the Sage 100 system is incredible, and they were able to tailor it to meet our specific requirements.”

Tiffany West

Corporate Secrectary & Office Manager, West Electrical Contractors

National Reach With Local Support

ASI provides ERP software systems and support to customers across the nation with offices strategically located across the US. 

Get In Touch

Contact ASI

Phone: 803-252-6154.

Visit us: 15 Surrey Ct, Columbia, SC 29212.

Offices in: North Carolina, Massachusetts, Arizona and California.

About ASI

ASI provides accounting, distribution, ERP (Acumatica, Sage 100 and Sage Businessworks), and manufacturing software solutions to small and mid-sized businesses. Beyond being a South Carolina ERP Software Systems provider, and an Acumatica and Sage partner we also provide website integration, e-commerce and custom-developed software to small and mid-sized businesses nationwide.