What is AtomicSam?
Discover how AtomicSam closes the gap between project delivery and getting paid — so your firm stops leaking revenue
Most professional service firms are leaking revenue. You're doing the work, but it's getting lost in a tangle of spreadsheets, disconnected project tools, and manual data entry. By the time you sit down to bill, you're often guessing — or worse, spending hours chasing down time logs just to get an invoice out the door.
AtomicSam was built to stop that leak. It's a commercial operating system for service firms, designed to bridge the gap between project delivery and accounting — transforming the chaotic space in between into a clear, high-visibility workflow where nothing falls through the cracks.
Is AtomicSam for You?
If you recognise your business in the descriptions below, AtomicSam was built specifically for your workflow:
| If you are… | You likely struggle with… |
|---|---|
| A consulting, engineering, or architecture firm | Juggling complex, multi-phase projects where scope changes mid-flight and costs hide until month-end |
| A creative or digital agency | Managing retainer budgets while simultaneously tracking one-off project milestones — and billing each differently |
| A growing team (5–100 people) | You've outgrown simple timers and spreadsheets, but enterprise ERP software feels bloated and expensive |
| A firm that bills for expertise | Losing small amounts of revenue on every job because the effort to track and bill them is greater than the task itself |
What Makes AtomicSam Different?
We didn't build another time-tracker. We built a system focused on commercial control — knowing what was quoted, what was delivered, and what should be billed — across the full lifecycle of your work.
3-Click Invoicing
Billing shouldn't be a monthly ordeal that takes all day. AtomicSam organises your data so that moving from completed work to a sent invoice is a matter of clicks, not hours.
7 Billing Modes That Match How You Actually Work
Not every project is billed the same way. AtomicSam offers 7 distinct invoice modes — fixed price, time & materials, retainers, progress payments, variations, and more — so your invoicing matches your contracts, not the other way around.
The Pre-Invoice Safety Net
Most billing errors happen right before data hits your accounting software. AtomicSam introduces a dedicated review layer where you can audit time and costs, catch missed revenue, and correct errors before they become permanent records in Xero or QuickBooks.
Works With Your Accounting Software
AtomicSam integrates deeply with both Xero and QuickBooks Online, giving you the flexibility to work with your preferred accounting stack without losing operational history.
What You Get
When you bring your firm into AtomicSam, your team gains a single source of truth for the entire lifecycle of every job:
- Financial clarity — see exactly what's work-in-progress and what's ready to bill, at any moment
- Revenue confidence — ensure every hour worked and every expense incurred is captured, reviewed, and paid for
- Margin protection — catch scope drift, budget overruns, and missed billables before they erode your profit
- Zero data silos — sync your clients, time tracking, and invoicing directly with your accounting software and project tools
Pro Tips
- Start with accounting connected — linking Xero or QuickBooks first unlocks tax rates, chart of accounts, and billing workflows that make every subsequent step faster
- Use pre-invoice review from day one — even if your team is small, building the habit of reviewing before exporting catches mistakes early
- Think "commercial control" — AtomicSam isn't just about tracking time; it's about ensuring what was quoted, what was delivered, and what gets billed all stay aligned