Stop buying.
Start building.

Custom software for operators outgrowing subscriptions. AI-accelerated. Yours to own.

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Surround · Substitute · Sunset

Agents wrap what you have. Micro-apps absorb what you've outgrown. You keep the data, drop the license.

See how it works ↓
Trusted by innovative teams at
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BIOTRAX
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ESG
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PRINCETON BRAIN, SPINE & SPORTS MEDICINE
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rb RITCHIE BROS.
SE V ENROOMS
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ENTURE PARTNERS

The economics of custom software have flipped.

You're paying for SaaS you don't fully use, bending your workflow around someone else's product, and stuck on a vendor's roadmap. Meanwhile, AI-accelerated development has collapsed the time and cost to build exactly what you need.

We've been doing this for a decade. The tools have finally caught up. What used to take a quarter now ships in weeks — clean, tested, deployed to your infrastructure.

What's always included.

01

Working software

Not wireframes. Not proposals. Deployed, functional applications built on clean architecture from day one.

02

Fully managed

We don't toss you a repo and disappear. We build it, run it, and maintain it. Your application, our operational responsibility — for as long as you want.

03

Deploy anywhere

AWS, GCP, Azure, on-prem. Your application runs where it makes sense for your business.

04

Modern architecture

State-of-the-art tools, proven patterns, well-documented code. Software your next team can actually maintain.

05

AI-accelerated

We use the best AI tooling available to deliver faster without sacrificing quality. The speed is real.

06

No vendor lock-in

Your application is yours. If you ever want to bring your own team, you can — clean code, full documentation, no hostage situation.

Google Cloud Partner

Google Cloud power. Zero lock-in.

Slingr is a verified Google Cloud Technology Partner. We design AI into your application from day one — Gemini, Vertex AI, the whole Google AI stack — running on the same infrastructure that powers Search and Gmail.

Google Cloud Partner — Select Technology Learn more →

Pick the pod that matches your project.

We don't sell hours — AI has made time a bad proxy for output. Instead, pods are sized by the complexity of what you're building and how fast it needs to evolve.

Build
Launch
$5,999
per month
A single focused application or automation. Defined scope, clear outcome, steady-state after launch. Ideal for replacing a spreadsheet, manual process, or rigid SaaS tool.
  • One application or workflow
  • Low-to-moderate complexity
  • Standard integrations (APIs, databases)
  • Monthly iteration cycle
  • Best for: defined problems with clear scope
Get started
Custom
Let's talk
 
Dedicated team capacity for high-complexity, high-velocity environments. Multiple applications, intricate business logic, and continuous deployment.
  • Enterprise-grade systems
  • High complexity, high rate of change
  • Dedicated engineering resources
  • Continuous iteration
  • Best for: mission-critical, fast-moving operations
Talk to us
Manage
Management
From $3,499
per month
Your app is in production — we keep it running, current, and secure. White-glove stewardship: bug fixes, security patches, API updates, framework upgrades, and everything open-source demands in a live environment.
  • Bug triage & resolution
  • API & framework version upgrades
  • Security patching & dependency updates
  • Hosted on Slingr-managed infrastructure
  • Uptime monitoring & incident response
  • Best for: live applications that need to stay current

All Build pods include architecture, development, deployment, and documentation. No setup fees. Month-to-month — cancel anytime. Your code and infrastructure are always yours.

*Third-party service costs — including cloud hosting, APIs, and AI tool usage — are billed separately by their respective providers.

How we size your pod.

Two dimensions: how complex is the system, and how fast does it need to change?

Complexity
Low
Single application, straightforward data model, standard integrations. Replacing a spreadsheet or manual process.
Moderate
Multiple connected systems, non-trivial business logic, role-based access, third-party data sources.
High
Enterprise integrations, complex workflows, regulatory requirements, multi-tenant architecture, large data volumes.
Rate of change
Steady
Build it, ship it, occasional updates. The system does its job and doesn't need constant attention.
Active
Regular feature requests, new integrations every quarter, evolving requirements as the business grows.
Continuous
Weekly deploys, rapid iteration, new capabilities shipping constantly. The software evolves with the business in real-time.

What we've built.

Don't take our word for it.

"From a technical standpoint, we need people who know what they're doing, who are willing to adapt and iterate quickly. Slingr delivered exactly that."

Benjamin De Point
VP Engineering, Veritone

"It's not easy to set up a system that can track, share, and automate the growing amount of data being generated in a modern lab. Slingr made it possible."

Michael Roberts
Co-Owner, ChemQuant Labs

"Slingr brought the execution discipline we preach to our own clients. They scoped it fast, built it right, and delivered on a timeline that most dev shops would call impossible."

Mark Newhall
Founder & CEO, Execution Specialists Group

Ready to talk?

Skip the form. Get on a call with our team and find out what we'd build for you.

Book a Call

Surround. Substitute. Sunset.

You don't have to rip out anything. Slingr surrounds your existing stack with agents that handle the work your team does today. Over time, lightweight micro-apps absorb the modules that have gone redundant. Eventually you drop licenses you no longer need — and keep the data that was always yours.

Surround
Wrap your stack with agents

Nothing gets touched. Salesforce, NetSuite, Workday — whatever you have stays. Slingr builds the agentic layer that reads from your systems, writes to them, and starts handling the work humans were doing by clicking through screens.

Substitute
Replace what's quietly gone redundant

Once agents are doing the work, parts of your monolith stop earning their keep — a reporting module nobody opens, a workflow engine nobody configures. We stand up lightweight micro-apps that absorb those functions, one at a time.

Sunset
Drop the license. Keep the data.

When enough of the monolith is hollow, the renewal conversation changes. You don't need the enterprise tier. Eventually you don't need the system at all — you keep the data and drop the license.

We know these systems inside out
Salesforce · Stripe · Slack · HubSpot · QuickBooks · DocuSign · Twilio · Shopify · Jira · ServiceNow · Workday · NetSuite · Zendesk · Microsoft 365 · Google Workspace · AWS · Snowflake · Airtable · Monday.com · SAP · and more
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Not ready for a call?

Estimate your project.

Tell us what you need. We'll respond within 24 hours with how we'd approach it, a work breakdown, and the pod that fits.

Or skip the form and book a call instead.