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Cornerstone guide

What is a Company OS? A plain-English guide for mid-market operators

Ask a mid-market CFO to draw their software stack and you'll get the same picture almost every time: a CRM, an accounting system, an HR platform, a cap-table tool, a sales-engagement tool, a marketing suite, a notetaker — seven to ten systems, each excellent alone, connected by a lattice of integrations, sync jobs, CSV exports, and one overworked ops person.

A Company OS is the alternative architecture: one platform where revenue, money, people, and ownership live on a single governed data layer, so the products don't integrate with each other — they simply read the same records.

The stitching problem, quantified

The pain isn't any single tool. It's the seams between them:

  • The same fact exists in five places. A customer is a record in the CRM, a counterparty in accounting, a logo in the marketing suite, a transcript tag in the notetaker. When they change entities or terms, someone reconciles.
  • Integrations are a second product you maintain. Field mappings break on vendor updates, sync jobs fail silently, and the answer to "which system is right?" is a meeting.
  • AI can't see across the seams. An AI SDR that can't see accounts receivable will cheerfully pitch a customer your books flagged 60 days past due. Per-app AI assistants inherit per-app blind spots.
  • You pay for the overlap. Each tool carries its own admin, its own per-seat pricing, its own contract cycle.

For a company between roughly $10M and $500M in revenue, the stitched stack commonly runs six figures a year before you count the ops time spent tending it.

What makes something a Company OS (and not just a suite)

Plenty of vendors sell multiple products. The test is what's underneath:

  1. One data core, not an integration bus. In a Company OS, a customer, invoice, employee, or share exists exactly once. Products share data by reading the same records — no connectors, no event sync, no export-import. In Interlock's case this is the Common Data Core: one schema, one event bus, row-level tenancy.
  2. AI that operates on the whole company. Because the data is unified, agents can be too. Interlock ships a virtual executive team — vCEO, vCRO, vCFO, vCHRO, vCMO — that hands back finished work rather than per-app suggestions, because each agent sees revenue, money, and people in the same query.
  3. One security and compliance boundary. A stitched stack has ten vendors' security postures; your auditor gets to review all of them. One platform means one posture — Interlock's is coded to SOC 2 Type II, HITRUST CSF r2, and FedRAMP High standards and audit-ready for all three (certifications in progress).
  4. Pricing that rewards consolidation. The economics should get better as you consolidate, not worse. Interlock's bundles discount 20% for two products up to 50% for all seven — the full stack lists at $6,776/mo à la carte and $3,388/mo on Interlock Complete.

Honest trade-offs: when a Company OS is the wrong call

Calibration matters more than enthusiasm, so here is where the stitched stack genuinely wins:

  • Best-of-breed depth in one function. If your business is its channel program or its dialer, a specialist (Impartner, Outreach) will out-feature the integrated equivalent. We say the same on every product comparison page — Salesforce wins on AppExchange depth, Carta on its investor network, NetSuite on ERP breadth.
  • Deep sunk investment. A Salesforce org with a decade of custom objects and a consulting bench is expensive to leave. The migration cost is real and should be priced into the decision.
  • Under ~20 employees. A micro-business does fine on QuickBooks and a spreadsheet. The Company OS case starts when the seams start costing headcount.
  • Needs outside the OS's scope. Inventory, manufacturing, field service — if you need ERP breadth, you need an ERP.
Stitched stackCompany OS
DataSame fact in 5+ systems, reconciled by peopleOne record, read by every product
IntegrationsBuilt, monitored, and repaired by youNone between products
AIPer-app assistants with per-app blind spotsAgents that see the whole company
Security reviewsOne per vendorOne, total
Cost curveGrows per tool, per seat, per contractBundle discounts grow with consolidation, 20–50%
Best-of-breed depthWins — specialists out-feature suites in their laneGood-to-great per product, unified

What a Company OS costs

Interlock prices each product for the mid-market — full price book here — and every self-serve tier starts with a 14-day free trial. Three reference points:

  • CRM (Elevate): $49–99 per user/month, AI included from the first tier.
  • Accounting (Ledger): $299–999 flat/month, multi-entity consolidation at the top tier.
  • The whole OS (Interlock Complete): all seven priced products at 50% off list; a 3-year term compounds a further 25% off.

How to evaluate one

  1. Count your seams. List every integration, sync job, and recurring export between your systems, and who fixes each when it breaks. That's the tax you're currently paying.
  2. Ask where the record lives. For any vendor claiming "unified," ask: if I change a customer's name, how many systems store it? One is an OS; more is a suite with connectors.
  3. Test the AI across functions. Ask the platform's agents a question that spans revenue and finance ("which of my top-10 pipeline accounts are behind on invoices?"). Per-app AI can't answer it.
  4. Price the exit, both ways. Leaving your current stack has a cost; so does staying. Put numbers on both before deciding.

The stitched stack was the only option for twenty years. It isn't anymore — and the mid-market, which never had enterprise integration budgets in the first place, is where the replacement starts.

Questions the guide didn't cover? Talk to us — a human answers within one business day.

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