Customer.io vs Sinch
Customer.io vs Sinch, compared side by side on 20 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: Customer.io is on 67/100 and Sinch on 62/100.
Where each one leads
Customer.io
- our overall score: 67/100 against 62/100
- agent readiness: 75/100 against 39/100
Sinch
- headcount: 4,353 against 514
- funding raised: $2.0B against $55.0M
- LinkedIn following: 537,615 against 41,008
At a glance
| Measure | Customer.io | Sinch |
|---|---|---|
| What it is | Customer engagement platform. | Global CPaaS provider enabling businesses to communicate with customers via messaging, voice, and video. |
| Category | Customer Engagement Platform, Marketing Automation, MarTech, SaaS | Communication Platform as a Service, CPaaS, Messaging API, Voice API |
| Sells toBusiness model | B2B | B2B |
| Offering | Platform | Platform |
| Founded | 2012 | 2008 |
| Headquarters | Beaverton, United States | Stockholm, Sweden |
| Status | Active | Active |
Size, funding and growth
| Measure | Customer.io | Sinch |
|---|---|---|
| Employees | 514 | 4,353 |
| Total funding | $55.0M | $2.0B |
| Latest round | Series A | Debt Financing |
| Valuation | $746M | Not published |
| LinkedIn followers | 41,008 | 537,615 |
StartupHub scores
Our own 0-100 ratings. They measure company strength and site quality, not which product suits you.
| Measure | Customer.io | Sinch |
|---|---|---|
| StartupHub scoreOur 0-100 rating | 67/100 | 62/100 |
| Traction | 59/100 | 60/100 |
| Team | 60/100 | 30/100 |
| Search visibility | 55/100 | 25/100 |
| Quality | 78/100 | 78/100 |
| Agent readinessHow well an AI agent can read and act on the site | B (75/100) | F (39/100) |
| Domain ratingLink authority, 0-100 | 81/100 | 81/100 |
Technology
Detected on each public site, so it reflects the marketing stack as well as the product.
| Measure | Customer.io | Sinch |
|---|---|---|
| Hosting | Vercel | Not detected |
| CDN | Vercel | Cloudflare |
| CMS | Not detected | WordPress |
| Frameworks | Next.js, Tailwind CSS | Jquery, Bootstrap |
| Analytics | Google Tag Manager | Not detected |
Customer.io vs Sinch: common questions
Which is better, Customer.io or Sinch?
On our 0-100 score Customer.io rates higher (67/100 against 62/100). 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 20 data points above: read the rows that match what you are buying for.
How do Customer.io and Sinch compare on the numbers?
Customer.io leads on our overall score (67/100 against 62/100), agent readiness (75/100 against 39/100). Sinch leads on headcount (4,353 against 514), funding raised ($2.0B against $55.0M), LinkedIn following (537,615 against 41,008).
Read the full Customer.io review and pricing or the Sinch review and pricing. You can also browse other Customer.io alternatives we track.