onyx works

Custom builds · Veteran-owned

Technology, plus good old-fashioned ingenuity.

We build what businesses run on. If a job eats your week and nothing off the shelf fits, tell us about it. We'll design the fix, build it, and keep it running.

Veteran-Owned Business

Custom builds

from $3,500

  • 01A written plan and price before anything gets built.
  • 02Guaranteed for 30 days after launch — if it doesn't work as scoped, we fix it free.
  • 03Ongoing support included by default, from $300/mo.

What that can look like

Some we run today. Some we build to order. All of them started as one annoying job.

Left, a phone form with a client's name, an anniversary line and a personal note. Right, the PDF it produces: a cover reading A personal selection for Eleanor Whitfield, and a page of jewelry picked for her.
Jewelers · galleries · anyone with a client bookBuilt for a client

Brochures and proposals that know the client's name

A salesperson for a luxury jewelry house was sending every client the same seasonal brochure. Now he types her name, adds a line about her anniversary, picks the pieces, and a personal PDF opens straight into his texts.

Built in an afternoon. His to keep. Nothing about a client leaves his phone.

See what the client receives (PDF) →

Sample with a fictional boutique and client. Names changed.

B2B services · IT · cleaning · signsRuns our own desk

A lead engine →

Finds the businesses that match your ideal customer, researches and scores each one honestly, and hands them over ready to work — first email drafted, nothing sent without your say-so.

Studios · service businesses · owner-ledBuilt for a client

The Owner's Screen →

Everything the engine did overnight, on one screen — every inquiry researched, scored and filtered, the reply already written. Your part is yes or no.

Any business with a websiteLive on this site

A chat helper on your website

Answers visitors' questions and books calls, day or night.

Busy front desks · owner-operatorsAnswering our line

A phone assistant →

Picks up when you can't, answers the basics in English or Spanish, and books the appointment. It answers our own line today — call the demo and hear it.

Trades · RV techs · contractorsBuilt to order

Estimates from a voice note

Walk the job and talk into your phone. A draft estimate, priced from your own price list, is waiting for you to check before it goes out.

Cleaning · IT · sign shops · contractorsBuilt to order

Bid sorting

Every bid request gets read, attachments too, and sorted into worth your time, maybe, or skip, with the reason and the due date.

Crews · field staffBuilt to order

A phone app for your team

Opens in the phone's browser, nothing to install, and does the one job your team keeps doing on paper.

The one we haven't thought of yet

We build our own tools too — including a phone app we're making for ourselves right now.

Tell us the job →

Looking for a quiz or a quote calculator on your website? Those come with our Signature package.

How a custom build works

You bring the problem. We bring the plan.

01

Tell us the job

Fifteen minutes. What eats the week, and how you handle it today.

02

We sketch the fix

A written plan and a price before anything gets built. If a tool you can buy already does it, we'll say so.

03

We build it

You see it working along the way, not just at the end. Every build is guaranteed for 30 days after launch.

04

It keeps running

Keep it running is on by default. Take the hand-off instead if you'd rather. Either way the build is yours.

After launch

A build that breaks in six months still has our name on it.

So ongoing support comes with every custom build unless you choose the hand-off.

Keep it running

Included by default

from $300/mo

  • We watch it and fix it
  • Updates when the tools underneath change
  • Up to 2 hours of small changes a month

Keep it improving

from $750/mo

  • Everything in Keep it running
  • Up to 6 hours of new features a month
  • A monthly check-in on what to build next

Hand-off

$0/mo

  • The 30-day build guarantee
  • After that, fixes quoted per job at $150/hr

Running costs (AI usage, phone minutes, texts) are billed at cost, separately, on every option. We never mark them up.

Tell us the job

Three questions. No jargon required.

Describe it the way you'd explain it to a friend. We'll reply with whether we can build it and what it would take — hire us or not.

Prefer to talk? Book 15 minutes instead.

We build what businesses run on. You own it. We keep it running if you want us to.