Lehman Wesley and Associates

What Lehman Wesley and Associates does

Lehman Wesley and Associates is a privately held IT and ERP consulting firm founded in 1998 by Bernie Lehman and Kevin Wesley, headquartered in Lansing, Michigan with a secondary office in Traverse City. The company specializes in implementing, customizing, and supporting two core ERP platforms — Sage 100 (the legacy on-premise/hybrid flagship, formerly MAS 90/MAS 200) and Acumatica (a modern cloud-native ERP) — primarily for small to mid-sized businesses in manufacturing, distribution, construction, professional services, retail/e-commerce, and regulated industries. Beyond ERP, the firm delivers a full lifecycle of managed IT services covering 24/7 monitoring, cybersecurity (SIEM, MFA, EDR, GRC, vulnerability testing), cloud solutions (managed Microsoft 365, cloud infrastructure, Desktop as a Service), server and network infrastructure, backup and disaster recovery, on-site and remote support, physical site security, structured cabling, and hosted VoIP.

The company's revenue mix is built on three pillars: ERP implementation professional services, recurring managed IT and managed security subscriptions, and hardware/software procurement through vendor partnerships. Twelve-plus certified Sage 100 add-on modules — including Avalara for sales tax automation, Quadient for AP/AR automation, Nuvei for integrated payments, CIMCloud for customer self-service, StarShip for shipping, Aatrix for 1099 filing, and EDI integrations via Kissinger, TrueCommerce, and SPS Commerce — extend the core platform's functionality and create stickiness with installed clients. GTM is direct and field-led, with inside-sales phone and website lead capture feeding into mid-market and enterprise engagements across the Midwest; the company explicitly positions itself as an off-site, on-demand IT department for businesses that lack internal IT scale.

The business is founder-led with Kevin Wesley serving as CEO, operates without disclosed outside capital, parent company, or institutional investment, and has no public listing. There are no M&A, leadership transitions, or restructurings on record. Capability limitations center on the absence of disclosed proprietary technology, in-house AI development, or research output; AI features are inherited from third-party ERP and security vendors rather than built internally, leaving Lehman Wesley positioned as a high-touch regional systems integrator and managed-services provider rather than a product company.

Name

Lehman Wesley and Associates

Legal name

Lehman Wesley

Website

https://lehmanwesley.com

Company type

Private

Founded year

1998

Operating status

Operating

Headcount range

11–50 employees

Short description

Lehman Wesley and Associates is a Michigan-based IT and ERP consulting firm, founded in 1998, that implements and supports Sage 100 and Acumatica while delivering managed IT, cybersecurity, cloud, and network services to small and mid-sized businesses in the Midwest.

Ownership category

akta.pro rank

Product category

ERP and Managed IT Services

NAICS

Computer Systems Design and Related Services (54151), Computer Facilities Management Services (541513)

SIC

Services-Computer Programming Services (7371), Services-Computer Programming, Data Processing, Etc. (7370), Services-Facilities Support Management Services (8744)

akta.pro primary industry

Core ERP Suites (Financials, Procurement, Projects) (HDAEAEAA)

akta.pro secondary industries

Professional Services Automation (PSA) & Services ERP (HDAEAEAF), Managed Detection & Response (MDR) & SOC Services (HDADAGAG)

Keywords

• ERP implementation consulting
• Managed IT services
• Cybersecurity services
• Cloud managed services
• Sage 100 partner

Headquarters

HQ city

Lansing

HQ country

United States

HQ region

North America

Offices2 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Technology or R&D, Operations, Marketing or Sales, Infrastructure

Revenue model

1. ERP Implementation & Consulting: Full-service ERP consulting including specification, budgeting, sales, installation, implementation of Sage and Acumatica software. Provides end-to-end service from selection through deployment.
2. Managed IT Services: Proactive IT management with 24/7 monitoring, support, and maintenance. Includes automated updates, security patch management, and predictive analytics to prevent failures.
3. Hardware & Software Procurement: Sourcing, configuring, and deploying hardware and software solutions through vendor partnerships. Includes licensing and subscription management.
4. Cybersecurity Services: Cybersecurity solutions including SIEM, MFA, EDR, vulnerability testing, and GRC services.
5. Cloud Solutions: Managed cloud services including Microsoft 365 management, cloud infrastructure, security, and Desktop as a Service.
6. Ongoing Support & Maintenance: Maintenance and support services for ERP software and IT infrastructure with helpdesk support.

Go-to-market motion3 records

Distribution channels2 records

Marketing channels3 records

Core offering

Lehman Wesley and Associates is a full-service ERP and IT consulting firm that implements, customizes, and supports the Sage 100 and Acumatica ERP platforms for small and mid-sized businesses. The firm also delivers managed IT services including 24/7 monitoring, cybersecurity (SIEM, MFA, EDR, GRC), cloud solutions (Microsoft 365, Desktop as a Service), server/network infrastructure, data backup and recovery, VoIP, and physical site security, functioning as an off-site, on-demand IT department for clients primarily in the U.S. Midwest.

Product overview

Lehman Wesley is a full-service ERP and IT consulting company offering a portfolio centered on two core ERP platforms: Sage 100 (a robust on-premise or cloud-hosted ERP for small to mid-sized businesses) and Acumatica (a modern cloud-native ERP with industry-specific editions). The company provides implementation, customization, and support for these platforms, along with numerous certified add-on modules including Aatrix (tax forms), Avalara (sales tax automation), Nuvei/Paya (integrated payments), Quadient (AP/AR automation), StarShip (shipping), CIMCloud (customer portal), and Sage Alerts & Workflow. Beyond ERP, the company delivers a comprehensive suite of IT services including managed IT, cybersecurity (SIEM, MFA, EDR, GRC), cloud solutions (Microsoft 365, DaaS), network infrastructure, data backup & recovery, on-site/remote support, physical security/cabling, and VoIP. The Sage 100 and Acumatica platforms serve as the foundational products, with add-ons extending functionality in specific domains.

Differentiator

Problem solved

Functional benefit

Products and services

• Sage 100 ERP Implementation End-to-end ERP consulting, implementation, and support for Sage 100 targeted at small and mid-sized businesses needing advanced accounting, inventory, distribution, manufacturing, and payroll capabilities.
• Acumatica ERP Implementation Implementation, configuration, and support services for the Acumatica cloud ERP platform, offering real-time data access, AI-powered reporting, and industry-specific editions for SMBs.
• IT Managed Services Recurring managed IT services for businesses without full in-house IT teams, covering monitoring, support, maintenance, and technology planning.
• Cybersecurity Services Managed cybersecurity solutions covering SIEM, MFA, EDR, vulnerability testing, and GRC services for healthcare, payment-card, and other compliance-bound environments.
• Cloud Solutions Managed cloud services including Microsoft 365 management, cloud infrastructure, cloud security, and Desktop as a Service (DaaS).
• Server & Network Infrastructure Design, implementation, and management of server and network infrastructure including wireless networks and ongoing monitoring for SMBs.
• Data Backup and Recovery Backup and disaster recovery solutions including Backup as a Service, Backup & Disaster Recovery, and offsite backups.
• On-Site & Remote IT Support Reactive and scheduled technical support covering on-site visits and remote troubleshooting for hardware, software, and network problems.
• Physical Site Security & Structured Cabling Physical security and structured cabling services including camera systems and network cabling for business facilities.
• Voice over Internet Protocol (VoIP) Hosted and managed VoIP systems for businesses, covering installation, configuration, security, and ongoing support.

Segments7 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration12 records

AI capability3 records

Feature5 records

Partnerships

Three partnerships are on record, tiered core.

• SagecoreTechnology or IntegrationCertified Sage partner specializing in Sage 100 (formerly Sage MAS 90/MAS 200) ERP implementation, maintenance, and support. Provides full lifecycle services from specification through ongoing support for Sage software solutions.
• AcumaticacoreTechnology or IntegrationCertified Acumatica partner providing cloud-based ERP solutions. Offers Acumatica implementation, configuration, and support services for businesses needing flexible deployment options.
• Microsoft 365coreTechnology or IntegrationManaged Microsoft 365 solutions including Teams, SharePoint, and OneDrive management, email hosting, and application management.

Scale indicators3 records

Recent moves6 records

Expansion highlights4 records

Broad incumbents

• ConnectWise: ConnectWise is a large incumbent provider of PSA, RMM, and cybersecurity software/platforms serving thousands of MSPs including ERP-reseller partners like Lehman Wesley. Comparable as a broad incumbent shaping the tooling and partner ecosystem Lehman Wesley operates within.

Others

• Avalara: Avalara is a sales and tax compliance automation provider integrated as an add-on to Sage 100 (and other ERPs) by Lehman Wesley. Comparable as a partner/vendor in Lehman Wesley's Sage 100 add-on ecosystem rather than a competitor.
• Pax8: Pax8 is a cloud-distribution and MSP enablement platform aggregating Microsoft 365, Azure, security, and SaaS solutions sold through IT service providers. Comparable as a supplier/distribution channel Lehman Wesley could source Microsoft 365 and cloud services through for its managed-services practice.

Direct peers

• Net at Work: Net at Work is a Sage Gold partner and full-service technology consultancy offering ERP, managed IT, cloud, and cybersecurity to mid-market firms. Directly comparable on Sage 100/Acumatica implementation plus co-managed/managed IT footprint.
• Beringer Technology Group: Beringer Technology Group is a managed IT services and Microsoft/cloud consultancy serving SMB and mid-market clients across the Northeast US with 24/7 support and cybersecurity offerings. Comparable in scope on managed IT, cloud, and security services if not ERP.
• Karabina Group: Karabina is an Acumatica and Sage-certified implementation partner providing ERP consulting, analytics, and cloud services. Comparable as an Acumatica partner delivering full-lifecycle ERP projects with a similar vertical mix.
• VRP Consulting: VRP Consulting is an Acumatica Gold partner delivering cloud ERP implementation, customization, and managed services, with vertical focus on manufacturing, distribution, and retail. Directly comparable on Acumatica-led ERP consulting model and managed IT support.
• SWK Technologies: SWK Technologies is a Sage-certified partner and managed IT services provider serving mid-market clients with ERP implementation, customization, and ongoing support across Sage 100/500 and adjacent products. Closely comparable to Lehman Wesley in both ERP vendor mix and managed-services model.
• BTerrell: BTerrell is a Texas-based Sage 100 (MAS) partner providing ERP consulting, implementation, and IT managed services to small and mid-sized businesses. Comparable as a regional Sage-focused ERP partner with overlapping vertical mix (manufacturing, distribution).
• Rand Group: Rand Group is an Acumatica Gold partner and Microsoft Dynamics partner providing ERP implementation, managed IT, and cloud services to mid-market organizations. Closely comparable as an Acumatica-focused ERP/IT consultancy with similar mid-market vertical emphasis.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks7 records

Key highlights7 records

Customer concentration

Compliance3 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Lehman Wesley and Associates