AttivoERP

About Us

Learn More
Attivo Gold Corner
About Us - Attivo ERP
Attivo Blue Corner

Who We Are

For over three decades, AttivoERP has helped manufacturers, distributors, and growing businesses navigate change through technology.

Today, we’re a full-service digital transformation partner — from ERP selection and implementation to ongoing support and AI enablement, with one goal: helping businesses get lasting value from their systems. The goal isn’t simply to deploy a system, but to help businesses maximize its value for years to come.

What We Do

ERP Experts

ERP Experts

Certified across six platforms — SAP Business One, Acumatica, Oracle NetSuite, Microsoft Dynamics 365 Business Central, Enterpryze, and Exact Globe+.

Business Partners

Business Partners

Selection, implementation, training, support, and optimization — all under one roof, for as long as you need us.

Legacy Supporters

Legacy Supporters

Macola, Dynamics GP, Sage, and Exact Globe — we still support systems most firms have stopped touching.

Cloud Specialists

Cloud Specialists

A dedicated private cloud, SOC 1 Type 2 certified, for businesses ready to move off their own servers.

Industry Insiders

Industry Insiders

Decades of hands-on experience in manufacturing, distribution, and the industries we serve — not just the software.

Attivo Gold Corner

Our Team

“From the beginning, I set out to build a highly collaborative team of people who are not only passionate about what they do, but who also care deeply about the clients we serve. That’s the heart of AttivoERP — and it shows in every relationship we build.”

Len Reo, President & Founder

Len Reo

Len Reo

President & Founder
Len brings decades of experience in solving complex business challenges with best practices and ERP technologies. With a background in Accounting and Finance and a deep understanding of various industries, he’s led Attivo in helping businesses grow efficiently.

LinkedIn Logo

Karla Reo

Karla Reo

Co-Founder
Karla manages day-to-day operations and financial systems across platforms like Macola, Exact Globe, SAP Business One, and QuickBooks. With over a decade of prior experience in both finance and HR, she ensures smooth execution and efficiency behind the scenes.

LinkedIn Logo

Tracy Beblie

Tracy Beblie

VP of Operations
Tracy brings over 30 years of software consulting expertise, and has led numerous ERP implementations, overseeing everything from project planning to resource management with precision and consistency.

LinkedIn Logo

Jim Reo

Jim Reo

Chief Financial Officer
Jim has over a decade of experience leading financial planning, budgeting, and strategic analysis to support the company’s continued growth.

LinkedIn Logo

Marla Malkin

Marla Malkin

VP of Marketing
With decades of experience in marketing, branding, and strategic growth, Marla brings a sharp focus to building impactful partnerships and executing results-driven campaigns.

LinkedIn Logo

Nick Avila

Nick Avila

VP of Sales
Nick leverages deep expertise in ERP systems, supply chain, and manufacturing operations to help businesses streamline processes and drive efficiency.

LinkedIn Logo

Mark Simmerman

Mark Simmerman

Business Unit Director,
Cloud & Security
Mark is an experienced IT leader with over 20 years in information assurance, risk management, and security solutions.

LinkedIn Logo

Josh Eddy

Joshua Eddy

Cloud Director
Josh brings a strong background in enterprise software implementation, with specialized expertise in Crystal Reports design, SQL database architecture, and project management.

LinkedIn Logo

Robert Clarke

Robert Clarke

Senior Business Consultant & Business Unit Manager
Robert brings over 35 years of leadership experience, combining deep business insight with a strong technical background in ERP implementations and continuous improvement initiatives.

LinkedIn Logo

Virgilio ZayasBazan

Virgilio ZayasBazan

Business Unit Manager, SAP Business One & Acumatica
Virgilio is an accomplished Acumatica and SAP Business One project manager and consultant, currently guiding ERP implementations and optimizations for small to mid-sized businesses.

LinkedIn Logo

Brian Hall

Brian Hall

Senior Consultant
Brian is a Senior Consultant with extensive experience in ERP systems, business process improvement, and implementation strategy.
Kurt Wiegand

Kurt Wiegand

Account Manager
Kurt specializes in guiding businesses through the transition from on-premise software to cloud-based ERP solutions, helping them eliminate redundant processes and boost operational efficiency.

LinkedIn Logo

Emily Perez

Emily Perez

Marketing Manager
Emily drives the execution and ongoing optimization of Attivo’s full-spectrum marketing efforts, blending determination with strategic problem-solving to deliver measurable results.

LinkedIn Logo

Gabriella Harris

Gabriella Harris

Marketing Coordinator
Gabriella has a diverse background in digital marketing, communications, and social media. Currently pursuing a master’s degree in Digital Media Management at USC.

LinkedIn Logo

Our History

1992
\
1992
Len Reo and Karla Reo found the Attivo Group in Hawthorne, CA.
1993
\
1993
Becomes a Macola VAR. Still supports Macola clients today as an authorized service provider.
1999
\
1999
Attivo Group moved locations to Villa Park, CA., adding several new team members.
1996-2000
\
1996-2000
SYSPRO, Dynamics GP and Sage added to our software offerings. Consulting, implementation and support accordingly.
2001
\
2001
Becomes an Exact Globe and Synergy Enterprise VAR.
2008
\
2008
Private Cloud Hosting service added for Macola customers
2013
\
2013
Developed EBizCharge integration for Macola customers
2016
\
2016
Becomes a certified SAP Business One VAR. Continuous development of enhancements for all our solutions.
2017
\
2017
Company headquarters relocated to Conyers, GA.
2018
\
2018
Became a Macola Authorized service provider for ECI software
2019
\
2019
Became the Macola Cloud hosting referral partner for ECI software
2022
\
2022
AttivoERP, Attivo Group, and Attivo Consulting are reborn into AttivoERP: our one true identity with everything wrapped into one.
2024
\
2024
Adds Enterpryze and Microsoft Dynamics 365 Business Central. Achieves Acumatica Gold Partner status. Adds Oracle NetSuite to our ERP offering. Cloud offering became SOC 1 Type II certified.
2025
\
2025
Hits a major milestone: 3,000 active cloud end users. Attivo TotalCare program added as a significant improvement for customer support and technology leadership.
2026
\
2026
Acquired Acuity Consulting Group. Our team has grown into 3 locations and 45 team members.

Want to work with this team?

Tell us about your business. We’ll connect you with the right person to start the conversation.

Talk to an AttivoERP Specialist
Schedule call now