Software Engineering Enterprise Ready

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

3,400+Projects delivered
1,200+Engineers
30+Countries served
ISO9001 and 27001

Trusted by Fortune Global 500 companies

Technologies we work with

AWS
Google Cloud
Microsoft Azure
NVIDIA
OpenAI
Anthropic
Gemini
Grok
Perplexity
Google AI
AWS
Google Cloud
Microsoft Azure
NVIDIA
OpenAI
Anthropic
Gemini
Grok
Perplexity
Google AI
Recognition

Recognized by industry directories

Company recognition across software development, consulting and AI engineering.

Top AI Development Company by Selected FirmsTop AI Development Company by Selected Firms
Top AI App Developers by C2C ReviewsTop AI App Developers by C2C Reviews
Top IT Consulting, SI & Managed Services Company by ITRateTop IT Consulting, SI & Managed Services Company by ITRate
Top Software Development Company by Selected FirmsTop Software Development Company by Selected Firms

Client reviews are also published on independent platforms such as Clutch and GoodFirms.

Capabilities

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.

01 / 08

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 ↗
Solutions

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 Requirements
By Function

Software 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.

By Industry

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.

Process

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.

  1. 01

    Discover

    Interview users, map current workflows and record budget, compliance and timeline limits.

  2. 02

    Design

    Sketch screens, data models and API contracts, then validate them with your stakeholders.

  3. 03

    Build

    Ship working features every sprint, each one code-reviewed and demoed to your team.

  4. 04

    Integrate

    Hook the application into your CRM, ERP and identity provider using approved credentials.

  5. 05

    Validate

    Run functional, integration, security and user acceptance tests against agreed criteria.

  6. 06

    Deploy

    Deploy to your chosen cloud with monitoring, alerts and a tested rollback path.

  7. 07

    Improve

    Use production data and user feedback to plan the next round of improvements.

Delivery confidence

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.

Architecture

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.

Stack

Software technology stack

We pick languages and frameworks your US team can hire for and maintain, matched to the product and hosting plan.

Frontend

Frontend development

ReactNext.jsVueTypeScriptHTML and CSS
Backend

Backend & API development

Node.js.NETJavaPythonREST APIs
Mobile

Mobile application development

FlutterReact NativeSwiftKotlin
Data

Data & analytics engineering

PostgreSQLMongoDBSearchAnalyticsEvent streams
Cloud and DevOps

Cloud & DevOps

AWSMicrosoft AzureGoogle CloudDockerKubernetes
Security and regional context

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 Requirements
Portfolio

Software development outcomes in practice

Examples of business applications, digital platforms and operational software delivered for complex organizations.

3 entries · scroll to reveal
01 / 03 Case Study
US CLIENT · USA

KISS USA Retail Operations Platform

Retail POS and back-office platform with 19 custom modules and 80+ API endpoints.

  • Business workflows
  • Application engineering
  • Connected systems
  • User access
  • Deployment
  • Ongoing support
Explore the case study ↗
KISS USA Odoo Retail POS Platform
02 / 03 Case Study
US CLIENT · MASSACHUSETTS

BPM Institute

Salesforce and ActiveCampaign integration with 99.8% sync uptime and automated pipeline updates.

  • Business workflows
  • Application engineering
  • Connected systems
  • User access
  • Deployment
  • Ongoing support
Explore the case study ↗
BPM Institute
03 / 03 Case Study
US CLIENT · USA

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.

  • Business workflows
  • Application engineering
  • Connected systems
  • User access
  • Deployment
  • Ongoing support
Explore the case study ↗
Eyefuze Marketing Odoo ERP
Policy Connect school-district policy management platform illustration

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
JooL caregiver support app illustration

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 application
Client Stories

Clients share their experience

Hear from clients about the delivery, communication and support they received from SDLC Corp.

Client story

Eric Leist

CEO, Edgerton Strategies

Client story

Doug Schmidt

CEO, Roofaid USA

Client story

Reyzal Razmi

All Star Influencers

What clients say
01 / 05
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.
What clients say
01 / 07
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.
By the Numbers

Software engineering at scale

Company-wide delivery experience across our global engineering teams.

Drag to spin
3,400+
Projects delivered
Global delivery
SOC 2
Type II security assurance
Company assurance
1,200+
Engineers
Global engineering team
30+
Countries served
Global client base
ISO
9001 and 27001
Security and quality management
Cloud
Flexible deployment
Public, private and hybrid
Why SDLC Corp

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

Company AssuranceSOC 2 Type II · ISO/IEC 27001:2022 certified · ISO 9001:2015 certified

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 Consultation
Global Software Development

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.

Get Started

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

FAQ

Software Development Company in the USA: FAQs

Common questions from US buyers about building, modernizing, integrating, hosting and pricing custom software.

What software can SDLC Corp build?

As a software development company in the USA, we take on line-of-business systems, customer portals, SaaS platforms, iOS and Android apps, integrations and AI features. The work suits sectors such as healthcare, finance, logistics and retail.

Can you modernize an existing system instead of replacing it?

Yes. We review the existing code and infrastructure, decide what to keep, and replace components in phases. Your operations keep running while the new platform takes over.

Can you integrate with our ERP, CRM and internal systems?

Yes. We build and maintain APIs, middleware and event-driven syncs between systems such as Salesforce, NetSuite, Dynamics 365, Stripe and your identity provider.

Do you support cloud, private and hybrid deployments?

Yes. We deploy to AWS, Azure or Google Cloud, to private data centers, or to hybrid setups. The choice follows your security review, data needs and budget.

Can AI be added to an existing software platform?

Yes. Copilots, document extraction, RAG search, agents, computer vision and predictive models can usually be added through APIs, without a full rebuild.

How do you start a new project?

Most projects open with a discovery workshop scheduled in US hours. We map users, workflows, integrations and constraints, then recommend an engagement model.

What does custom software development cost in the USA?

Budget is driven by scope, number of integrations, security needs, team size and support level. HIPAA or SOC 2-related controls add testing and documentation effort. We size the architecture and plan first, then send a commercial proposal.

How long does software development take?

It depends on scope, integrations, data migration and testing. After discovery we set milestones, and a focused first release can go live before the wider platform.

How are ownership and handover agreed?

Code ownership and IP terms sit in the signed agreement. Before handover we confirm repository access, documentation, deployment guides and knowledge-transfer sessions.

Do you provide US business-hours overlap for software development projects?

Yes. Working hours, review cadence and escalation contacts are agreed in discovery. SDLC Corp has a US office in Batavia, Illinois, on Central time, and the schedule gives US stakeholders planned overlap for reviews and fixes.

Still have a question?

Ask our team directly and get answers specific to your project.

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