Karbon vs Portrex
Karbon vs Portrex, compared side by side on 11 data points: what each one does, how big it is, what it has raised, the tech running each site, and what users report. We score both out of 100 on traction, team and visibility: Karbon is on 63/100 and Portrex on 11/100.
Where each one leads
Karbon
- our overall score: 63/100 against 11/100
- domain rating: 75/100 against 4/100
Portrex
Leads on none of the measures we hold for both companies.
At a glance
| Measure | Karbon | Portrex |
|---|---|---|
| What it is | Workstream collaboration platform for accounting firms to manage workflows and client work. | A sales platform for residential service companies that helps teams offer add-on services, bundles, financing, proposals, and customer portals. |
| Category | Vertical SaaS, LegalTech, Accounting Software, Workflow Automation | Vertical SaaS, Proptech, Construction Tech, Sales Enablement |
| Sells toBusiness model | B2B | B2B |
| Offering | Software | Software |
| Founded | 2014 | Not published |
| Headquarters | Melbourne, Australia | Not published |
| Status | Active | Active |
Size, funding and growth
| Measure | Karbon | Portrex |
|---|---|---|
| Employees | 415 | Not published |
| Headcount growthLast 12 months | +19.4% | Not published |
| Total funding | $53.0M | Not published |
| Latest round | Series B | Not published |
| LinkedIn followers | 65,081 | Not published |
StartupHub scores
Our own 0-100 ratings. They measure company strength and site quality, not which product suits you.
| Measure | Karbon | Portrex |
|---|---|---|
| StartupHub scoreOur 0-100 rating | 63/100 | 11/100 |
| Traction | 59/100 | Not published |
| Team | 70/100 | Not published |
| Search visibility | 33/100 | 22/100 |
| Quality | 68/100 | Not published |
| Agent readinessHow well an AI agent can read and act on the site | C (64/100) | C (63/100) |
| Domain ratingLink authority, 0-100 | 75/100 | 4/100 |
Technology
Detected on each public site, so it reflects the marketing stack as well as the product.
| Measure | Karbon | Portrex |
|---|---|---|
| Hosting | Netlify | Vercel |
| CDN | Netlify | Vercel |
| CMS | Not detected | Ghost |
| Frameworks | Not detected | Next.js |
| Analytics | Not detected | Google Tag Manager |
Karbon vs Portrex: common questions
Which is better, Karbon or Portrex?
On our 0-100 score Karbon rates higher (63/100 against 11/100). The score weights traction, team, visibility and profile completeness, so it reflects company strength rather than which product suits you. We compare the two on 11 data points above: read the rows that match what you are buying for.
How do Karbon and Portrex compare on the numbers?
Karbon leads on our overall score (63/100 against 11/100), domain rating (75/100 against 4/100).
Read the full Karbon review and pricing or the Portrex review and pricing. You can also browse other Karbon alternatives we track.