Custom Software for Startups

Software That Grows With Your Startup

We build the custom software that powers your startup's growth — web platforms, mobile apps, APIs, integrations, and AI features. Clean architecture that scales.

The Challenge

Sound familiar?

01

Off-the-shelf doesn't fit your model

Your business is unique. SaaS tools with workarounds create operational overhead and limit what's possible.

02

Your dev team is stretched thin

You need senior engineers for the hard problems, not months of recruiting.

03

Technical decisions feel risky

Wrong architecture choices compound into years of technical debt. You need experienced guidance.

How We Help

What we build for you.

Full-Stack Teams On Demand

Senior engineers, designers, and product thinkers — ready to embed with your team in days, not months.

Architecture That Scales

We design systems for 10x-100x growth. Microservices, event-driven architecture, cloud-native infrastructure.

End-to-End Delivery

From product strategy to deployment to maintenance. We own the outcome, not just the code.

Proof

PartyShark — Full-Stack Social Platform

We built a complete social platform from scratch — real-time messaging, vendor marketplace, payment splits, and event management.

85K+
Events
3x QoQ
Revenue Growth
2,500+
Vendors
Industry Results

Outcomes that compound.

Telecommunications

Consumer Cellular

Custom software solutions fueling growth trajectory

$50M → $1B
Revenue Growth
Nationwide coverage
Scale
Custom platform
Technology
https://www.altsourcesoftware.com/resources-library/case-studies
Construction

Rail Engineering Firm

Custom mobile + admin apps replacing manual spreadsheets

2x (doubled)
Business Capacity
Eliminated spreadsheets
Manual Work
Significant improvement
Efficiency
https://esoftresponse.com/insight/case-studies-of-successful-startups/
Our Stack

Built on proven technology.

ReactReact NativeNode.jsPythonPostgreSQLMongoDBAWSDocker
FAQ

Questions, answered.

How much does custom software cost?

Projects range from $25K-$150K+ depending on scope. We provide detailed estimates after a free discovery session.

How do you work with existing teams?

We embed with your team, follow your processes, and use your tools. Or we can own the project end-to-end.

What if we need to change scope mid-project?

Agile sprints make scope changes natural. We re-prioritize every 2 weeks based on what you've learned.

Do you sign NDAs?

Yes, always. We sign NDAs before any discovery call and treat your IP with full confidentiality.

Build the software your startup needs

Free discovery session. Tell us the problem — we'll show you the solution.