CUSTOM AI DEVELOPMENT AGENCYBooking Q3 2026

We build the systemsyour business runs on.

Bespoke AI-powered platforms for companies that outgrew off-the-shelf tools. From rapid implementations to full custom builds.

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Production systems shipped
$0K+
Thousand $ saved for clients
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Continents served
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Percent custom code
INDUSTRIES WE'VE SHIPPED IN
  • Recruitment
  • Mental Health
  • Food Service
  • Government Data
  • Real Estate
  • Career Services
  • Hospitality
  • Sports & Leisure
THE GAP

Off-the-shelf software stops where your business starts.

No-code tools hit ceilings. SaaS subscriptions stack up. Generic AI assistants don't know your business. The companies that compound advantage are the ones building their own intelligent systems, and most teams don't have engineers who can do it.

HOW WE WORK

Three engagement models. One quality bar.

Whether you need a fast win or a full platform, you get senior engineers, custom code, and systems built to last.

FASTEST

Quick Wins

TIMELINE 2–4 weeks
INVESTMENT From $5K

One sharp problem, solved end-to-end. WhatsApp automation, AI chatbot, data pipeline, internal tool. Pick the bleeding edge and we fix it fast.

WhatsApp automation · Lead qualification bot · ETL pipeline · Custom integration
MOST POPULAR

Intelligence Stack

TIMELINE 6–12 weeks
INVESTMENT From $25K

A full system that replaces 3–5 SaaS tools. Custom CRM, internal dashboard, AI-powered operations layer. You own the code, the data, and the roadmap.

Multi-tenant CRM · AI-powered dashboard · Custom workflow platform · Document intelligence
FOR PLATFORMS

Custom Build

TIMELINE 3–6 months
INVESTMENT From $100K

Your own product or platform, from blank page to launch. Architecture, frontend, backend, AI integrations, deployment. We embed with your team and ship.

B2C platform with AI core · Marketplace + intelligence · Enterprise system · Vertical SaaS
WHAT WE BELIEVE

We build software that compounds.

Custom systems for one company at a time, yours to own and extend. Designed to get sharper every quarter your business runs on them.

SELECTED WORK

Real systems. Real outcomes. Real engineering.

A sample of production builds across recruiting, mental health, food service, and government data. Client identities anonymized under standard NDA.

RECRUITMENT · HR TECH

Multi-tenant CRM that replaced three SaaS subscriptions

PROBLEM

A recruitment firm was paying for three disconnected SaaS tools, none of which talked to each other. Hundreds of candidates were slipping through manual handoffs between systems.

WHAT WE BUILT

We built a single multi-tenant platform with candidate pipelines, AI-powered qualification, automated outreach, and analytics, purpose-built for recruiting workflows.

0K saved/year
Eliminated SaaS subscriptions
0hrs/wk
Recovered from manual handoffs
Next.js · Python · PostgreSQL · Vercel
MENTAL HEALTH · SaaS

AI therapy platform with voice integration

PROBLEM

A therapist with a proven methodology needed to scale beyond 1-on-1 sessions. Clients needed support between sessions, and the practice needed a way to track progress without manual notes.

WHAT WE BUILT

A complete platform: AI chatbot trained on the methodology, voice-enabled sessions, scheduling, session analytics, and a client-facing dashboard.

0users
Currently active on platform
0% less
Admin overhead vs. manual practice
Next.js · Claude API · WebRTC · Realtime DB
FOOD SERVICE · LOGISTICS

WhatsApp automation tied to ERP for instant orders

PROBLEM

A food service operator's customers were waiting minutes for order status updates. Staff was answering the same questions repeatedly. Orders were getting lost between channels.

WHAT WE BUILT

A WhatsApp AI agent connected directly to their ERP. Customers ask, get instant answers. Orders flow automatically into operations. Staff handles edge cases only.

0sec response
Down from 120 seconds average
0hrs/wk
Freed up for high-value work
n8n · WhatsApp Business API · ERP integration
GOVERNMENT DATA · B2B

ETL pipeline and sales CRM for federal transfer data

PROBLEM

A B2B intelligence firm sells data to companies bidding on federal transfers. The source data is messy, partial, and updated unpredictably. Their team was rebuilding spreadsheets every week.

WHAT WE BUILT

Automated ETL pulls federal transfer data nightly, normalizes it, scores opportunities, and feeds a custom sales CRM with alerts and pipeline tracking.

0% automated
Replaces weekly manual rebuilds
0x faster
Time from data to sales opportunity
Python · FastAPI · PostgreSQL · Custom CRM
HOW WE SHIP

Four phases. No theatre.

Same flow whether it's a 3-week Quick Win or a 6-month platform. Predictable cadence, decisive milestones.

  1. 01 Week 1

    Discover

    We meet your operation. Map workflows, read the data, find where you're actually losing time and money. Output: a written diagnosis and scoped proposal.

  2. 02 Week 1–2

    Architect

    Decide the shape. Stack, data model, integrations, deployment target. You see the blueprint before a line of production code is written.

  3. 03 Weeks 2–N

    Build

    Engineers ship in small, reviewable increments. Weekly demos. Decisions logged. You stay close enough to redirect, not so close that you have to babysit.

  4. 04 Final week

    Hand off

    Production deploy, monitoring, documentation, training. You own everything. We stick around for a 30-day support window or roll into ongoing retainer.

WHY US

What you get with Sigma.

01

Senior engineers only

No outsourcing, no juniors learning on your dime. Code is written by people who've shipped production systems for years.

02

You own the code

Full source, full deployment access, full documentation. No vendor lock-in, no recurring license fees on your own software.

03

Built to last

We architect for the next three years, not the next quarter. Type-safe, tested, monitored, maintainable.

04

Outcomes, not hours

We measure success in what your business gains. Time saved, revenue earned, capabilities unlocked. Not billable hours.

LET'S TALK

Tell us what you're trying to build.

Free 30-minute conversation. We'll tell you honestly whether we're the right fit, and if not, who is.