All Kleer Computer Systems
Sage 100 Upgrade & Performance Specialists
Helping Distributors & Manufacturers Modernize Their ERP Systems
and
Supporting Sage 100 (Formerly MAS 90 / MAS 20)
Since 1995
Sage 100 Upgrade & Optimization
Running an older version of Sage 100?
Experiencing slowness, reporting delays, or database issues?
We specialize in upgrading legacy MAS 90 / MAS 200 systems to modern Sage 100 environments — improving speed, stability, and performance without disrupting operations.
ERP Performance &
System Cleanup
Outdated configurations, neglected maintenance, and inefficient workflows can quietly drain productivity.
We audit, optimize, and clean up Sage 100 environments — ensuring your system runs efficiently, accurately, and securely.
Advanced Reporting &
Custom Solutions
When standard reports aren’t enough, we deliver tailored Crystal Reports, SQL solutions, and module integrations that give leadership clear, actionable insights.
From Accounts Payable to Inventory Management — we make your data work for you.
Attention, New Clients, Not sure where to start?
We offer new clients a complimentary 30-minutes assessment to review your current environment.
During this session, we:
Review your current version and environment.
Identify immediate performance risks.
Answer technical questions in real time.
Provide clear next-step recommendations.
Who We Are
All Kleer Computer Systems has supported Sage 100 environments since 1995.
We specialize in helping distributors and manufacturers maintain, upgrade, and optimize their ERP systems — from legacy MAS 90 / MAS 200 installations to modern Sage 100 environments.
Our focus is simple: deliver reliable, expert-level ERP solutions that improve system performance, streamline reporting, and reduce operational risk.
When your accounting and operational systems matter, experience matters.
What we do
Sage 100 Version Upgrades & Legacy MAS 90 Migrations
Direct Access to Senior Consultants
Live Support —
When You Call, We Answer
Long-Term ERP Partnerships
For over three decades, we have helped companies maintain, upgrade, and optimize their Sage 100 environments.
“I love working with the All Kleer team! Emma and I have worked together on several occasions. Her command and understanding of MAS 90 (Sage 100 ERP) is exemplary!”
– Audrey W., Consultant
– Sherry L., Accounting Manager
“We feel there is no one better on MAS 90 than Emma Lewis. She is outstanding on both computer and accounting issues”
– Barbara S., Accounting Department Head