Software Development
Company in the USA
As a software development company in the USA, we build custom applications, SaaS products and modern digital platforms for US businesses.
We combine product engineering, cloud, data, AI and integration expertise to take software from discovery through production and long-term evolution.
Global software delivery experience
Trusted by Fortune Global 500 companies

Recognized by industry directories
Company recognition across software development, consulting and AI engineering.
Top AI Development Company by Selected Firms
Top AI App Developers by C2C Reviews
Top IT Consulting, SI & Managed Services Company by ITRate
Top Software Development Company by Selected FirmsClient reviews are also published on independent platforms such as Clutch and GoodFirms.
Custom Software Development Services for US Businesses
Our software development services in the USA are shaped by what American teams ask for most: faster releases, cleaner integrations and software that passes security review.
Applications
Custom business applications
Internal tools built around how your teams actually work, replacing spreadsheets, email approvals and patched-together point solutions.
Discuss this requirement ↗Products
Software product development & SaaS
Multi-tenant SaaS with subscription billing, usage tracking and the release pipeline needed to ship often to US customers.
Scope your SaaS product ↗Portals
Customer & employee portals
Branded portals for customers, dealers, patients or partners, with secure login, account self-service and request tracking.
Discuss this requirement ↗Connected
Mobile apps and connected platforms
iOS and Android apps backed by secure APIs, SSO, push notifications and the same business rules as your web app.
Discuss this requirement ↗Modernize
Legacy application modernization
Move off aging .NET, Java or on-premises systems in stages, so operations keep running while the new platform takes over.
Plan your modernization ↗Intelligence
AI-enabled software
Add copilots, document extraction, RAG search or predictive scoring to existing applications where they save measurable effort.
Explore AI features ↗Integrate
API development & software integration
Connect Salesforce, NetSuite, Stripe, identity providers and data warehouses through versioned, monitored APIs.
Plan this integration ↗Operate
Cloud and production engineering
CI/CD pipelines, infrastructure as code and monitoring for applications on AWS, Azure or Google Cloud.
Discuss this requirement ↗Built for US enterprise and product engineering teams
We agree on architecture, hosting, ownership and collaboration before development starts. Planning reflects US procurement, vendor security review and product-delivery expectations.
Connected systems
Enterprise integration and modernization
Connect ERP, CRM, finance and internal systems while modernizing legacy applications without disrupting critical business workflows.
Map your integrations ↗Deployment
US-region cloud, private and hybrid hosting
Choose infrastructure around your data, security, performance and operating requirements.
Plan your hosting ↗Working together
US-time delivery and stakeholder collaboration
Set owners, review points, communication cadence and practical overlap with US Eastern, Central or Pacific business hours with business, product and engineering teams.
Discuss this requirement ↗When custom software is the right choice
Off-the-shelf SaaS works until your process becomes the competitive edge. Custom software makes sense when licenses, workarounds and spreadsheets start slowing your US teams.
Modernize
Modernize legacy systems
Aging platforms make every release slow and risky
Recover
Rescue an existing product
A product from a previous vendor needs stabilizing
Scale
Scale your platform
Customer growth is straining your SaaS architecture
Connect
Connect your workflows
Staff re-key data between portals and back-office tools
Simplify
Replace manual work
Spreadsheets and email still run key approvals
Extend
Extend existing software
Current apps need AI, analytics or automation added
Not sure custom software is the right choice?
Describe the workflow and the tools you already pay for. We will tell you honestly whether to build, extend or integrate.
Discuss Your RequirementsSoftware for your business teams
Each department in a US company tends to buy its own tools. We build software that lets them share data while keeping access right for each role.
Workflows
Operations
Replace email chains for approvals, field requests and exceptions with tracked, rule-based workflows.
Reporting
Finance
Automate invoice capture, reconciliations and month-end reporting, linked to QuickBooks, NetSuite or your ERP.
Service
Customer service
Put order history, case status and secure self-service in front of agents and customers in one place.
CRM
Sales
Tie quoting, contracts and account activity back to Salesforce or HubSpot so pipeline data stays current.
Systems
IT
Give IT teams SSO, provisioning, integration monitoring and help-desk tooling they can maintain themselves.
Product
Product teams
Ship SaaS features on a shared roadmap with product owners, release notes and usage analytics built in.
Software for US organizations with complex workflows
Each US sector brings its own data, integration, accessibility and security requirements, and we design around them.
Financial
Financial services
Customer platforms, workflow applications and secure internal systems designed around financial-services controls, integrations and auditability.
Patient & staff
Healthcare
Patient, staff and administrative applications with integration, role-based access and support for HIPAA-sensitive workflows where applicable.
Logistics
Logistics & supply chain
Shipment, warehouse, fleet and operational software for distributed US logistics networks and connected business systems.
Production
Manufacturing
Production, asset, quality and workforce applications for multi-site manufacturing and complex operating environments.
Retail
Retail & eCommerce
Commerce operations, customer experiences, POS-connected workflows and analytics across online and physical retail channels.
SaaS
SaaS & technology
New product engineering, platform modernization and dedicated product teams for US SaaS and technology businesses.
From software discovery to production
Work moves from scoping to release in short, demo-backed stages. Reviews are booked in US business hours, and our Batavia, Illinois office runs on Central time.
- 01
Discover
Interview users, map current workflows and record budget, compliance and timeline limits.
- 02
Design
Sketch screens, data models and API contracts, then validate them with your stakeholders.
- 03
Build
Ship working features every sprint, each one code-reviewed and demoed to your team.
- 04
Integrate
Hook the application into your CRM, ERP and identity provider using approved credentials.
- 05
Validate
Run functional, integration, security and user acceptance tests against agreed criteria.
- 06
Deploy
Deploy to your chosen cloud with monitoring, alerts and a tested rollback path.
- 07
Improve
Use production data and user feedback to plan the next round of improvements.
Clear delivery, ownership and handover
US procurement and legal teams want terms settled early, so the commercial model, access rights and exit plan are agreed before coding begins.
01 · Ownership
Source code and IP terms
The contract and statement of work spell out code ownership, third-party licenses and IP terms before the first sprint.
02 · Visibility
Repository access
Your engineers get access to the repository and build pipeline from the start, so progress is visible between sprint demos.
03 · Handover
Documentation and handover
Runbooks, architecture decision records and recorded walkthroughs let your in-house team or a future vendor take over without guesswork.
04 · Review
Inherited codebase review
Took over an app from a previous vendor? We audit the code, fix release blockers first and map what to keep, refactor or rebuild.
05 · Roadmap
Dedicated engineering team
Choose a fixed project team for a defined scope, or a long-term team that works alongside your US product managers.
06 · Support
Maintenance and improvement
After go-live, monitoring, patching and small regular releases keep the application secure and aligned with user feedback.
Connect software to the systems your teams already use
New applications have to work with what US teams already run, from Salesforce and NetSuite to Microsoft Dynamics 365, Okta sign-in and QuickBooks.
Application layer
Reach employees, customers and partners through web apps, iOS and Android, self-service portals or public APIs.
Business logic
Encode pricing, eligibility, routing and approval rules in services your team can change without a rewrite.
Data layer
Structure databases, search and reporting with retention rules designed around HIPAA or state privacy needs where they apply.
Integration layer
Sync ERP, billing and line-of-business data through supported connectors, with one named system of record for each field.
Validation
Validate roles, inputs and approval limits before an action posts, which keeps audit trails clean for finance and compliance reviews.
Monitoring
Watch uptime, response times, errors and feature usage in production dashboards after launch.
Software technology stack
We pick languages and frameworks your US team can hire for and maintain, matched to the product and hosting plan.
Frontend development
Backend & API development
Mobile application development
Data & analytics engineering
Cloud & DevOps
Security for US software projects
US security reviews usually start with data sensitivity and hosting. We design architecture around both, plus identity and integrations. Delivery can incorporate controls relevant to a client's SOC 2 readiness and HIPAA obligations where applicable; this does not itself certify the client system or establish HIPAA compliance. Designs can also be aligned with CCPA/CPRA, the NY SHIELD Act or Illinois BIPA where relevant.
Identity
Role-based access & identity
SSO through Okta, Microsoft Entra ID or similar, with roles mapped to real job duties and least privilege.
Traceability
Auditability & traceability
Approvals, record changes and admin actions are logged, so you can answer an auditor's or customer's questions with evidence.
Interfaces
Secure API & integration design
Every interface handles authentication, authorization, input validation and failure cases, whether it faces partners or internal systems.
Data
Data protection controls
Data is classified, encrypted and segmented, so PHI, payment data or personal information follows your retention policy.
Deployment
Cloud & private deployment
Run on AWS, Azure, Google Cloud, a private environment or a hybrid of them, chosen against your risk and operating model.
Reliability
Testing, monitoring & support
Automated tests, logging, alerting and an agreed support process keep production issues visible and owned.
Have hosting or compliance requirements in the USA?
Tell us where data must live, who needs access and what auditors ask for, including HIPAA or state privacy needs. We will plan delivery around it.
Review My RequirementsSoftware development outcomes in practice
Examples of business applications, digital platforms and operational software delivered for complex organizations.
KISS USA Retail Operations Platform
Retail POS and back-office platform with 19 custom modules and 80+ API endpoints.
Workflow→Application→Integration→Operations
- Business workflows
- Application engineering
- Connected systems
- User access
- Deployment
- Ongoing support

BPM Institute
Salesforce and ActiveCampaign integration with 99.8% sync uptime and automated pipeline updates.
Workflow→Application→Integration→Operations
- Business workflows
- Application engineering
- Connected systems
- User access
- Deployment
- Ongoing support

Eyefuze Marketing Odoo ERP
Odoo ERP rollout for a US marketing agency, with 7 modules deployed in 12 weeks to replace a disconnected tool stack.
Workflow→Application→Integration→Operations→Support
- Business workflows
- Application engineering
- Connected systems
- User access
- Deployment
- Ongoing support


Education · Texas, USA
Policy Connect: school-district policy management
SDLC Corp developed and maintains Policy Connect, connecting district policy publishing, current and historical document downloads, search and training-to-CRM workflows.
See the Policy Connect platform
Healthcare · US market
JooL: caregiver support for the US market
SDLC Corp developed JooL’s caregiver-support application for a Netherlands-based client entering the US market. It connects participant profiles, care-buddy discovery, communication and scheduling.
Explore JooL’s caregiver-support applicationClients share their experience
Hear from clients about the delivery, communication and support they received from SDLC Corp.
Eric Leist
CEO, Edgerton Strategies

Doug Schmidt
CEO, Roofaid USA

Reyzal Razmi
All Star Influencers
With the help of the SDLC Corp team, the company is now able to deliver very complex designs rapidly to their super high-end clients.
From the initial consultation to the website's launch and ongoing support, SDLC Corp demonstrated a level of professionalism and technical expertise that surpassed our expectations.
The app they developed is intuitive, efficient, and has significantly improved our recruitment process.
The development stage focused on coding core website features and seamlessly integrating essential security features, given the nature of our industry.
SDLC has shown solid and regular progress during weekly sprints. The team is transparent, responsive, and always available.

They've quickly understood our business context, moved fast, and brought recommendations rather than questions.
Their smart tracking and fleet management have helped us work faster by reducing delays and improving delivery routes.
The team's communication is excellent, and they respond well to questions.
We have done almost 20 projects with SDLC and have always been delighted with their work product, communications, responsiveness and professional courtesy.
They provided a clear and detailed roadmap for building software tailored to our needs, complete with features like client dashboards and real-time analytics.
They offered valuable, research-based insights and suggestions to further enhance the site.
They helped us launch the product within a fixed timeline of 8 weeks.
Software engineering at scale
Company-wide delivery experience across our global engineering teams.
Why US businesses choose SDLC Corp
US buyers often juggle separate vendors for design, engineering and support. As a software development company in the USA, we keep that work with one accountable team and a US office in Batavia, Illinois.
Teams
Cross-functional engineering teams
Healthcare, finance and SaaS projects rarely fit one skill set, so product, UX, engineering, QA, DevOps and data specialists plan releases together.
Experience
Enterprise and product delivery experience
From a first SaaS release to a multi-year line-of-business platform, we plan each program for the release after launch, not just launch day.
Connected
Connected software and business systems
Many US companies run Salesforce, NetSuite or Dynamics 365 next to homegrown tools. We link them through documented APIs instead of manual exports.
Deployment
Flexible cloud and deployment models
AWS, Azure, Google Cloud or private hosting is chosen against your security review, budget and latency needs, and the trade-offs are written down.
Regional context
Global delivery with regional context
Vendor security questionnaires, ADA accessibility and state privacy laws come up early in US deals. We cover them in discovery, then deliver with our wider engineering organization.
Support
Long-term modernization and support
Once live, the team that built the platform can keep maintaining it, retire legacy pieces and add features as your market shifts.
Security and quality assurance
Controls are scoped to your data and industry, such as PHI handling for healthcare or PCI DSS scope where applicable.
Ready to start your software project?
Share your goals and constraints, and we will suggest a realistic first release for your US team.
Get a Free ConsultationChoose the delivery model that fits your US team
Custom software development in the USA can start as a fixed-scope project, a dedicated team or a phased modernization. Pick the model that fits your budget cycle and in-house capacity.
Plan
Project delivery
Best for a clear brief: we own discovery, architecture, build, QA and release against an agreed scope.
Discuss this requirement ↗Deliver
Dedicated product team
A stable team of engineers, QA and product roles that works through your roadmap release after release.
Discuss this requirement ↗Improve
Modernization program
Retire legacy systems piece by piece, moving integrations and infrastructure without a big-bang cutover.
Scope your modernization ↗Services that support your software
Pair your US software build with integration, QA, AI or advisory work from the same delivery organization.
Connect
Software integration
Link new and existing applications to CRM, ERP and payment platforms through supported APIs.
Discuss this requirement ↗Quality
Software testing & QA
Plan regression, performance and accessibility testing against applicable ADA-related requirements and agreed standards.
Plan your QA ↗Intelligence
AI development
Embed AI in software you already run when a specific task, like document review, justifies it.
Discuss this requirement ↗Advisory
Software consulting
Settle architecture, stack and modernization priorities with an independent review before committing budget.
Talk to a consultant ↗Plan your software project
Review scope, integrations, delivery and support before choosing a budget and schedule.
Project planningScope and product complexity
Workflow depth, user roles, platforms and non-functional requirements determine engineering effort.
Read Article
Project planningIntegrations and legacy systems
ERP, CRM, identity, payments, data platforms and inherited codebases can materially affect delivery effort.
Read Article
Project planningDelivery model
A defined project, dedicated product team or staged modernization program changes team shape, cadence and commercial structure.
Read Article
Project planningRelease and ongoing support
Plan deployment, monitoring, maintenance and handover as part of the project.
Read ArticleExplore software development services in US cities
Explore software development services in these US cities.
New York
Software development for financial services, healthcare, media, retail and technology teams.
Los Angeles
Custom software for media, entertainment, healthcare, commerce and digital products.
Chicago
Software for logistics, manufacturing, finance, healthcare and technology teams.
Baltimore
Software for healthcare, cybersecurity, education and operational workflows.
Houston
Custom software for energy, industrial operations, logistics and healthcare.
Explore our global custom software development services
For the full service model across custom applications, SaaS, integrations and modernization, visit our global custom software development page.
Discuss Your Software Development Project in the USA
Tell us what you need to build, modernize or connect. We’ll help shape the architecture, delivery plan and next step.
We will review your details and come back with a recommended approach.
Contact Us
Share a few details about your project, and we’ll get back to you soon.
Let's Talk About Your Project
- Free Consultation
- Support options based on your engagement
- Agreed delivery milestones
- sales@sdlccorp.com
- +1(510-630-6507)