Custom Application Development
Web, cloud, desktop and mobile applications built around a specific operating need.
Business-critical software engineering
Custom software built for how your business actually runs.
We design, build and support business software: web and mobile applications, ERP and SaaS platforms, API and EDI integrations, e-commerce and warehouse automation, legacy modernization and practical AI, then keep evolving it as the business grows.
WEB & MOBILEERP & SAASAPIS & EDIE-COMMERCE & LOGISTICSAI & AUTOMATION
CONNECTED BUSINESS SYSTEMSLIVE OPERATION
EXPERIENCE
01Web & mobile
02ERP & operations
CUSTOMBusiness Systemrules · workflows · data
CONNECTIONS
03APIs & EDI
04Marketplaces & logistics
INTELLIGENCE
05AI & automation
06Data & reporting
EVENTVALIDATEACTREPORT
2012AppsXone established
2006Founder serving US clients since
CAPABILITIES
Engineering for the systems your operation depends on.
Broad application engineering, with deep experience where complex operations meet enterprise systems and integrations.
Business Systems & ERP
Operational platforms, custom ERP, workflow systems and portals that make complex work visible and manageable.
Integrations & Automation
Direct connections between the systems, partners and processes that need to work together.
Legacy Modernization
Practical modernization for established systems where replacement is not the responsible option.
AI & Data Automation
Document processing, extraction, reporting and workflow automation applied to real operational work.
SaaS, Cloud & Specialized Platforms
Multi-tenant, cloud-hosted and specialized applications for organizations with their own operating model.
EDI INTEGRATION
We build EDI inside your ERP, not beside it.
Most integrators put a middleware layer between you and your trading partners. You pay per document, you cannot see inside the mapping, and when a transaction is rejected you are filing a ticket instead of reading a log.
We build the transaction sets directly into the ERP. The mapping is your code, the data never leaves your system, and a rejected 856 is something you can trace to the line that caused it.
The core order cycle, connected directly to the business system. Select a step for detail.
SUPPORTING SETS997 acknowledgment846 inventory824 application advice812 adjustment753/754 routing
- Transaction sets in production 850, 855, 856, 810, 846, 997, 824, 812, plus 753 and 754 routing for Amazon.
- Amazon, three separate integrations Vendor Central Wholesale EDI, Direct Fulfillment EDI, and Seller Central over SP-API. Different rules, different backends, same account.
- No SPS Commerce or Rithum layer Direct connections, so there is no per-document cost and no black box between you and the partner.
- Diagnosis, not escalation Carrier mismatches, routing slot conflicts, line-item discrepancies. Read the reject, find the cause, resend clean.
LONG-RUNNING WORK
Read about our modernization work
Sometimes the answer is to extend the system, not replace it.
A lot of our longest engagements started the same way: a business running on something old or commercial that could not be thrown away. Rather than a rewrite, we build a modern layer over it.
01Existing systemWorking business logic stays in place
→ 02Modern service layerAPIs, automation and new interfaces
→ 03Connected operationUsers and partners work from one flow
13 YEARS
Continuous ASP Classic to ASP.NET migration across multiple large production systems, still running today.
COMMERCIAL ERP
A browser layer and B2B customer portal built over AccountMate, writing real orders back into the ERP with no re-keying.
IN PLACE
A 3D scan measurement tool in Three.js layered into an existing Web Forms application, with no platform rewrite.
SELECTED WORK MANUFACTURING · ENTERPRISE INTEGRATION SAFETY · SAAS PLATFORM HEALTHCARE · SPECIALIZED APPLICATION Browse all case studies
Different systems. The same engineering discipline.
A selection across enterprise integration, SaaS and specialized business applications.
Multi-marketplace ERP for a US consumer electronics brand
Seven sales channels, native EDI, multi-warehouse inventory, landed cost and live carrier rate shopping in one ERP.
View Case StudyMulti-tenant lone-worker safety platform
A specialized platform for a real-time, mobile-connected safety operation.
View Case StudyOrder-to-cash ERP for an orthotic and prosthetic lab
A browser-based business system spanning measurement, production, purchasing and reconciliation.
View Case Study INDUSTRIES
Experience across industries. Expertise in complex operations.
Distribution, retail & ecommerceExplore industry Healthcare, diagnostics & medical devicesExplore industry Manufacturing & productionExplore industry Field service & asset operationsExplore industry Legal, compliance & professional servicesExplore industry Workforce, security & payrollExplore industry Property & community managementExplore industry Events, hospitality & service operationsExplore industry SaaS & specialized platformsExplore industry
View all industries FOR AMAZON SELLERS
Selling on Amazon rather than integrating with it?
Listing optimization, A+ content, PPC management, and repricing through Amazon's approved APIs. Separate team, separate process, same standards.
WE INTEGRATE WITH See the full technology stack
The systems your business already uses.
Marketplaces, trading partners, accounting systems, carriers and AI services, connected directly to the ERP or application that runs the operation.
APPSXONEIntegration Layermapping · rules · monitoring
MARKETPLACES & COMMERCE
ERP, EDI & ACCOUNTING
SHIPPING & WAREHOUSE
AI & DOCUMENTS
LET'S TALK
Tell us what is not working.
Most projects start with a system that has stopped keeping up, or a process someone is still doing by hand. Describe it and we will tell you honestly whether we are the right firm for it.