Investor overview
The operating system for the six-phase project record
plinth.OS unifies pre-design, design, permitting, procurement, construction, and handover for architects, designers, developers, and owners — on one connected record. Built for the teams enterprise suites underserve.
Market Opportunity
One of the largest untapped opportunities in enterprise software
Global architecture, engineering, and construction software + permitting + construction management
Source: Grand View Research, 2025AI-enabled design, permit, and project-record platforms
Source: MarketsandMarkets, 2025; plinth.OS analysisUS firms, 3-year capture at ~6.7% SAM penetration
Source: plinth.OS estimate, 2025Market sizing combines third-party research and plinth.OS estimates. Full source detail is available on request.
Business model
SaaS seats plus outcome-aligned fees
Studio and Enterprise subscriptions anchor recurring revenue. Success fees align upside with permit approvals as the platform scales.
Studio & Enterprise SaaS
Studio at $3,000/mo ($36K ACV base, blending higher with filing volume) · ~78% gross margin (modeled)
Permit success fee
0.1–0.25% of project value on permit approval — Rate decreases with filing volume and is set on your Studio onboarding call — more of your spend is outcome-aligned as base seats drop. Layers onto Studio seats as the agent proves out metro by metro.
Data Licensing
Future revenue stream · unquantified
Anonymized permit & cost data for insurers, lenders, and municipalities. Aggregated, de-identified market data only — this does not include or resell individual client project work. See Trust & Liability for details.
Competitive landscape
No single competitor owns the full architecture lifecycle
| Platform | Design AI | Code | Permit Agent | Cost AI | End-to-End | Works without Revit |
|---|---|---|---|---|---|---|
| plinth.OS | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
| Snaptrude | ✓ | ~ | ✗ | ✗ | ✗ | ✓ |
| Kestrel Labs | ✗ | ✓ | ✗ | ✗ | ✗ | ✗ |
| Autodesk Forma | ~ | ~ | ✗ | ✗ | ✗ | ✗ |
| Procore | ✗ | ✗ | ✗ | ~ | ✗ | ✓ |
Comparison based on publicly available product documentation as of July 2026.
Go-To-Market
From design beachhead to full platform OS
All phases are measured from seed close (target Q3 2027). Series A prep runs months 6–18 post-close; the raise window opens at month 18 post-close.
Months 0–6 post-close
Design Beachhead
Win on generative design. Free tier drives individual adoption and builds the user base before monetizing the permit layer.
- 500 architects on free tier
- Permit agent metro expansion
- $150K annual recurring revenue
Months 6–18 post-close
Permit Intelligence
Launch AI permit agent in top 10 US metros. 2–3 large architecture, engineering, and construction design partners. Charge on permit success.
- 50 paying firms
- $2M annual recurring revenue
- Series A prep
Months 18–36 post-close
Platform OS
Expand into owner/developer project records and the post-occupancy data loop. Become the platform standard.
- 200+ paying firms
- $15M annual recurring revenue
- Series A raise
The Ask
$3M Seed Round · 18 months runway · Series A at $2M annual recurring revenue
Target close Q3 2027 · Series A trigger 18 months post-close at $2M annual recurring revenue
Fund permit data infrastructure, product depth, and sales expansion through seed close. GTM phase 1 targets 500 architects on the free tier as the design beachhead.
18 months post-close at $2M annual recurring revenue with 50+ paying firms and permit intelligence across top US metros — aligned with GTM months 6–18 (prep) and months 18–36 (raise).
Product & Engineering
$1.65MSales & Marketing
$750KPermit Data Infrastructure
$360KGeneral & Administrative / Legal
$240KCompetitive moat
Additive to Autodesk — built for the firms they ignore
Autodesk serves large firms with established workflows. We are purpose-built for the 95% of architecture firms with under 50 staff that Autodesk's enterprise pricing ignores.
plinth.OS sits on top of your existing Revit workflow — we make your Autodesk investment more valuable, not redundant.
IFC import/export and open BIM interchange let firms run design through permit without Revit — your model stays portable across tools.
Competitive dynamic
Full-lifecycle lock-in
When pre-design, design, permitting, procurement, construction, and handover share one platform for architects, designers, developers, and owners, switching costs rise naturally — because the data model is the product.
Unit economics
Small math that compounds
Studio list price and scale milestones frame the economics. Detailed revenue ramps and scenario modeling live in the private investor deck — not on this public page.
$36K ACV base per firm · modeled ACV blends higher with filing volume
$2M ARR blended at Series A trigger; ~$1.8M seat-only if all 50 firms pay list Studio ACV ($36K) before success fees
Modeled software-led delivery on shared permit intelligence
Growth mechanism
The permit data flywheel
Every filing improves jurisdiction-specific compliance patterns using de-identified, aggregated data. Training on a firm's actual design schemes requires explicit written opt-in — see Trust & Liability.
- De-identified permit outcomes improve jurisdiction-specific compliance patterns metro by metro
- Model accuracy compounds as aggregated intake signals grow — lowering sales friction over time
- Success fees layer onto Studio seats as the permit agent proves out in each market
Full annual recurring revenue ramps, sensitivity cases, and pipeline detail are available on request — schedule a call below.
People
Team
Building the operating system for architects, designers, developers, and owners.
Amir Duke
Founder & CEO
Amir Duke is the founder and CEO of Plinth.OS. After recognizing the gap between Spatial AI Intelligence and the Architecture Industry, he created a SaaS product to give architects real-time generative BIM, live compliance, and Otto for human-reviewed permit prep on one connected record without asking them to give up licensure or sign-off control.
Investor materials
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