Quote to cash
Estimating and invoicing
Build the estimate once, turn it into the job, turn the job into the invoice. Priced from your real parts and labor, not a template.
New Smyrna Beach, FL · Chattanooga, TN · Remote installs across the US
Custom software for owner-run businesses in New Smyrna Beach and Chattanooga.
Third Gear Ventures builds the estimating, scheduling, invoicing, customer portal, and reporting systems that service businesses run on, plus the AI automations that handle follow-up, reminders, and inbox triage. Fixed scope. Fixed price. Built by the developer you talk to.
The short version
Software shaped around how your business already works.
Most owner-run service businesses run on three apps, a spreadsheet, and the owner's memory. The apps were built for someone else's process, so the owner ends up as the glue between them: re-typing the estimate into the invoice, chasing the follow-up, checking the calendar against the job board by hand.
Third Gear Ventures builds the layer that replaces the glue. We map how the work actually flows from first contact to paid invoice, then build the software that flow calls for and install it inside the business. Local trade, food, retail, and service shops in New Smyrna Beach and Chattanooga, and remote installs anywhere in the United States.
Your process. Your software. Your data.What we build
What custom software looks like for a service business
Not a generic app. The specific pieces your operation is missing, connected to the tools you already pay for.
Capacity
Scheduling and dispatch
Who is on what job, what is booked this week, and where the open hours are. Confirmations and reminders go out on their own.
Customer-facing
Customer portals and online ordering
Customers approve estimates, check job status, order ahead, or pay online without calling the shop. Wired into Square or Stripe.
Operations
Job, inventory, and asset tracking
Every job, part, vehicle, or piece of equipment with its history in one place instead of scattered across spreadsheets.
Visibility
Dashboards and reporting
A weekly scorecard of the handful of numbers that actually run the business: booked work, receivables, capacity, margin.
AI automation
Follow-up, reminders, review requests, inbox triage
The repetitive work nobody has time for, handled inside the systems you already use and checked against real numbers.
How a build works
Three phases, priced up front
Map first. Build only what the map calls for.
Phase 1
Operational Map
We walk your operation end to end, from first contact to paid invoice. You get a full workflow map, where time and money leak, a priority build list, and a weekly scorecard. Sometimes the honest answer is that you do not need a build yet. You get told that too.
Phase 2
Build and Install
We build what the map calls for, connect it to what you already use, set up the handoffs, and train whoever runs it day to day. Built for the least technical person on your team, not the owner.
- Fixed scope and price before work starts
- You own the code, the data, and the accounts
- Installed inside the business, not handed over
Phase 3
Monthly Optimization
Optional. A monthly check-in to watch the numbers, catch drift, and refine what is running. Light touch by design. The system should hold on its own. This keeps it sharp as the business grows.
Built here, running now
We run on the same software we build
Real systems with their status stated plainly. No invented case studies, no borrowed numbers.
Our own product
Third Gear Shop
Shop management software for independent performance and repair shops: job board from intake to pickup, parts and time tracking, estimates, invoicing, customer portal, and reporting. Designed, shipped, and run by the studio.
It is the clearest example of what we build for clients: the operational layer of a service business, shaped around how that trade actually works.
Live at thirdgearshop.com
Client work
Lines & Vines Coffee, New Smyrna Beach, FL
An owner-run coffee shop where the owner is behind the bar most mornings. We built the site, structured the menu and pricing, and are wiring online ordering straight into Square so customers order ahead and the bar stays in rhythm.
Live at linesandvines.coffeeTools we've built
Studio-built platforms across trades, service, and AI. Each one is a working system, not a mockup.
HVAC · in use
Contractor operations control panel
Weekly inputs, dashboard, estimates and receivables, and capacity planning for HVAC contractors.
Field service
Inspection and field workflows
Scheduling, role-based access, and reporting for teams running jobs out in the field.
AI document review
Contract and document tools
AI that turns dense terms, policies, and contracts into clear summaries with red flags and risk ratings.
This is for you if
Custom software is the right move if
- Your process is the thing that makes you money, and every off-the-shelf tool keeps asking you to change it.
- The business runs out of three apps and a spreadsheet, and you are the only person who knows how they connect.
- You have a team now, and things slip the moment you are not looking at them.
If none of that is true yet, a good off-the-shelf tool is the right answer and we will say so on the call.
Where we work
Two home markets, remote installs everywhere
Third Gear Ventures is based in New Smyrna Beach, Florida and Chattanooga, Tennessee. The Operational Map is done in person where we can get to you. Builds and installs are done remotely for service businesses anywhere in the United States.
New Smyrna Beach, FL
Volusia County and the greater Daytona area
Custom software for the trade, food, retail, and service businesses along the coast: restaurants and coffee shops that need ordering wired into the register, contractors and repair shops that need estimating and scheduling in one place, and owner-run shops that have outgrown the spreadsheet.
We build custom websites for local businesses here as well.
- New Smyrna Beach
- Edgewater
- Port Orange
- Daytona Beach
- Oak Hill
- DeLand
Chattanooga, TN
Hamilton County and the Tennessee Valley
Custom software development for Chattanooga's owner-run service businesses: HVAC and trade contractors, performance and repair shops, field service teams, and local operators who need estimating, dispatch, invoicing, and reporting built around how they actually run.
Mapping sessions happen on site in Chattanooga and the surrounding towns.
- Chattanooga
- East Ridge
- Hixson
- Ooltewah
- Cleveland
- Dalton, GA
Questions owners ask
Custom software, answered plainly
How much does custom software cost for a small business?
At Third Gear Ventures, a Build and Install runs $4,000 to $12,000 depending on scope, and it starts with a $1,500 Operational Map that defines exactly what gets built. The price is fixed before work starts. Ongoing optimization is optional at $500 to $2,000 a month.
How long does a custom software build take?
The Operational Map takes one to two weeks. A Build and Install takes two to six weeks depending on how many systems it connects. Most owner-run businesses are running on the new system within two months of the first call.
When should a small business build custom software instead of buying off-the-shelf?
Buy off-the-shelf when a standard tool fits the way you work. Build custom when your process is the thing that makes you money and the tools keep forcing you to change it, when you are running the business out of three apps and a spreadsheet, or when the owner is the only person who knows how everything connects.
The Operational Map answers this question honestly before any build is priced. Sometimes the answer is that you do not need a build.
Do you work with businesses outside New Smyrna Beach and Chattanooga?
Yes. We are based in New Smyrna Beach, Florida and Chattanooga, Tennessee, and do the mapping in person where possible. Builds and installs are done remotely for service businesses anywhere in the United States.
Who owns the software after it is built?
You do. The code, the data, and the accounts it runs on belong to your business. Nothing is locked behind a proprietary platform, and there is no requirement to keep paying us to keep using what was built.
What does AI automation mean for a service business?
Specific, repetitive work handled without the owner: following up on every quote and lead, confirming and reminding bookings, asking for a review after a completed job, and sorting the inbox to the right person. Each automation is installed inside the systems you already use and checked against real numbers, not a demo.
Do you build websites too?
Yes. Third Gear Ventures builds custom, phone-first websites for local businesses, with fixed packages from $2,500 and care plans from $50 a month. If the site needs online ordering, booking, or a customer portal wired into how the business runs, the same team builds that too.
Not sure where to start
Book a 15-minute call. A few questions about your operation, and an honest answer on whether custom software is the right move, or not.
No pitch. No commitment. Just a conversation.
Contact
Tell us how the work flows today
A sentence or two about the business and where things slip is enough to start. We reply from New Smyrna Beach or Chattanooga, usually the same day.