Mio vs Slack
Mio vs Slack, compared side by side on 13 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: Mio is on 40/100 and Slack on 68/100.
Where each one leads
Mio
Leads on none of the measures we hold for both companies.
Slack
- our overall score: 68/100 against 40/100
- funding raised: $1.4B against $2.2M
At a glance
| Measure | Mio | Slack |
|---|---|---|
| What it is | An AI colleague that lives inside Slack to assist with recurring tasks and advance work. | Channel-based messaging and collaboration platform for team communication and workflow automation |
| Category | Artificial Intelligence, Productivity Software, Workplace Technology, Agentic AI | SaaS, Collaboration, Communication, Enterprise Software |
| Sells toBusiness model | B2B | Not published |
| Offering | Software | SaaS |
| Founded | 2025 | 2013 |
| Headquarters | Paris, France | San Francisco, United States |
| Status | Inactive | Active |
Size, funding and growth
| Measure | Mio | Slack |
|---|---|---|
| Employees | Not published | 3,000 |
| Total funding | $2.2M | $1.4B |
| Latest round | Pre-Seed | IPO |
StartupHub scores
Our own 0-100 ratings. They measure company strength and site quality, not which product suits you.
| Measure | Mio | Slack |
|---|---|---|
| StartupHub scoreOur 0-100 rating | 40/100 | 68/100 |
| Traction | 32/100 | 60/100 |
| Team | 30/100 | 10/100 |
| Community | Not published | 8/100 |
| Search visibility | 2/100 | 48/100 |
| Quality | 52/100 | 90/100 |
| Agent readinessHow well an AI agent can read and act on the site | Not published | D (56/100) |
| Domain ratingLink authority, 0-100 | Not published | 92/100 |
Technology
Detected on each public site, so it reflects the marketing stack as well as the product.
| Measure | Mio | Slack |
|---|---|---|
| Hosting | Not detected | AWS |
| Analytics | Not detected | Google Tag Manager |
Mio vs Slack: common questions
Which is better, Mio or Slack?
On our 0-100 score Slack rates higher (68/100 against 40/100). 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 13 data points above: read the rows that match what you are buying for.
How do Mio and Slack compare on the numbers?
Slack leads on our overall score (68/100 against 40/100), funding raised ($1.4B against $2.2M).
Read the full Mio review and pricing or the Slack review and pricing. You can also browse other Mio alternatives we track.