Money in cents end-to-end
Integer cents end to end, half-even rounding everywhere, tax rate snapshotted at issuance, multi-currency from day one. No floating-point math touches a dollar.
Built to Ship.
The back-office platform scaling businesses run on.
CRM, quoting, projects, invoicing, payments, vendors, expenses, and an accounting backbone that balances itself, and stays locked once you close the books. Plug in modules for the operation you actually run.
For operators who outgrew the books app and the spreadsheets behind it. Built by an operator.
The chassis
Every Kitstak account ships with this.
The back office every operator needs. Not the bolt-on. The foundation.
- CRM
Customers, contacts, leads, opportunities, activities. The pipeline lives in one place.
- Quoting
Versioned quotes with line items, approvals, and PDF render. Convert to project in one click.
- Projects
Phase-driven projects with state machine and audit. Customer-portal-visible.
- Invoicing
Send invoices, track status, accept partial payments. Auto journal entry on every send.
- Payments and credits
Multi-invoice payment allocations. Credit notes with allocation rollup. Both auto-post to the GL.
- Vendors and POs
Vendor master, purchase orders, receipts. Auto journal on approval; balances reconcile themselves.
- Bills and expenses
Vendor bills, expense workflow, reimbursements. Approval-gated; auto-paid status flips post the JE.
- Accounting backbone
Chart of accounts, journal entries, period close. Closed-period writes blocked at the database.
- Tamper-evident audit
Append-only log with per-row hash chain. Verified nightly. Forensic-grade by default.
- Whitelabel portal
Customer-scoped read-only portal. Runtime branding per tenant. Optional on Starter; included on Pro+.
Professional adds
Everything in the chassis, plus the operating modules.
- 3PL
Receiving, kitting, production runs, shipments, and customer-scoped portals. Lit at v1.
- Manufacturing
BOMs, production runs, finished-goods inventory, and output movements.
- Co-Pack
Ecommerce order intake, kit-to-order flows, and packaging-as-a-service.
Enterprise adds
Everything in Professional, plus every module and platform controls.
- KitForce
Time tracking, labor allocation, and payroll handoff for floor staff. Lights up at $400/mo.
- KitCost
Per-order, per-customer cost-to-serve with pricing recommendations from actuals. Lights up at $400/mo.
- SSO and SAML
Directory-backed single sign-on and provisioning across the whole organization.
- Whitelabel included
Customer-scoped portal with per-tenant runtime branding, included rather than added on.
- Multi-tenant isolation
Row-level data isolation for hundreds of downstream sub-brands on one chassis.
Optional modules
Plug in the operation you run.
The chassis runs the back office. These modules add the verbs specific to your business. Light only the ones you need.
- 01 Lit at v1
3PL Operations
Receiving orders, kitting, production runs, shipments, customer-scoped portals.
Learn more → - 02 Plumbed
Manufacturing
BOMs, production runs, finished-goods inventory, output movements.
Learn more → - 03 Plumbed
Co-Pack and Ecom
Order intake from ecommerce channels, kit-to-order, packaging-as-a-service.
Learn more → - 04 Plumbed
KitForce
Workforce management. Time tracking, labor allocation, payroll handoff.
Learn more → - 05 Plumbed
KitCost
Cost intelligence. Per-order, per-customer, per-line cost-to-serve. Pricing driven by actuals.
Learn more →
Why Kitstak
Discipline shipped, not promised.
The invariants below are enforced at the database. Not the application. Not the documentation. Financial safety you do not have to remember to enforce.
Tamper-evident audit log
Per-row hash chain, verified on a schedule. Append-only via row-level security. Forensic-grade trail without a separate compliance product.
Auto journal entries
Send an invoice, post a payment, approve a vendor bill. Journal entries write themselves at the database trigger layer. The chassis balances without a bookkeeper.
Closed periods stay closed
Once you close a period, any edit to it raises a database error at the trigger layer. Application code cannot bypass it. No backdated invoice, no quiet adjustment, no surprise restatement.
Gap-free document numbering
Invoice, PO, and document numbers are sequential and gap-free even under parallel writes. Auditors and customers never ask why a number is missing. Advisory row locks guarantee a clean sequence per organization.
Idempotency on every write
Replay any state-changing call within 24 hours and get the same response. Network blips do not create duplicate invoices.
Proof, not promises
Customer zero replaced its spreadsheet stack in five business days.
We trusted the numbers because we trusted our people. Now we trust the numbers because the database tells us to. The team is the same. The discipline is finally legible.
- 5 days
- to cutover, founder-led
- Day 3
- month-end close, was the 15th
- 0
- phantom shortages after cutover
- 300K
- units a month, audit-clean
Plans
Pick the tier, not the per-seat tax.
Implementation is one-time and founder-led. Monthly or annual. Annual saves about 15 percent.
Starter
$800 /mo
$680/mo billed annually
For the operator escaping the spreadsheet stack.
- 5 users
- 1,000 docs per month
- Full chassis included
- Customer portal in v1
Replaces your books app plus four spreadsheets and a bolt-on CRM.
Implementation $5,000, founder-led, 30 days of support.
Book a demoProfessional
$1,800 /mo
$1,530/mo billed annually
Chassis plus 3PL, Manufacturing, and Co-Pack.
- 15 users
- 10,000 docs per month
- Full chassis included
- 3PL, Manufacturing, Co-Pack modules
Pays for itself the month KitCost finds one underwater customer. Customer zero found two.
Implementation $12,000, credited toward your first annual term.
Claim a Pro onboarding slotEnterprise
$3,500 /mo
$2,975/mo billed annually
Every module, SSO and SAML, whitelabel portal.
- Unlimited users
- Unlimited docs
- Full chassis plus whitelabel
- Every module, SSO/SAML
Consolidates the entire back office across every warehouse you run.
Implementation $25,000, founder-led, 4 to 6 weeks.
Talk to the founderModules: KitForce $400/mo, KitCost $400/mo. Light them up on any tier when the operation needs them.
Scaling: additional warehouse $150/mo, whitelabel portal on Starter $300/mo.
Founder-led onboarding is capped each month. Ask about remaining Q3 slots.
Straight answers
Questions operators ask.
How hard is the migration off spreadsheets?
Most operators are live in days, not months. Customer zero, a Bentonville 3PL, migrated existing data via CSV import and cut over in five business days, keeping the old books open as a fallback they stopped needing by day three.
What happens to my accountant?
Nothing forced. Kitstak produces GAAP-aligned, export-friendly output, and your accountant gets access through standard user roles. Many customers keep exporting to their books app through their first tax season; the export stays supported until your accountant is ready to work in Kitstak directly.
Who owns my data, and can I get it out?
You do. Your data is yours and is exportable on demand. Kitstak is the system of record while you operate; it is not a lock-in.
Is it actually secure?
Integrity is enforced in the database, not just the application: append-only, hash-chained audit logs verified on a schedule, row-level tenant isolation, and closed periods that reject edits at the trigger layer. The security and financial-integrity pages lay out the specifics.
Do I have to change how I operate?
No. Kitstak runs your existing methodology cleaner; it does not impose one. Same team, same customers, same warehouses. With legible, database-enforced discipline underneath.
Talk to us
Built by an operator. For operators.
Kitstak is shipping out of Bentonville, AR. Customer zero is a 3PL the founder runs daily. If you operate at our scale and want a real conversation, send a note.