Sendbird vs Sierra
Sendbird vs Sierra, compared side by side on 21 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: Sendbird is on 61/100 and Sierra on 48/100.
Where each one leads
Sendbird
- our overall score: 61/100 against 48/100
Sierra
- headcount: 900 against 299
- headcount growth: +137.5% against -6.0%
- LinkedIn following: 88,150 against 36,871
At a glance
| Measure | Sendbird | Sierra |
|---|---|---|
| What it is | Omnichannel AI-powered communication platform for enterprise customer engagement. | Sierra builds AI agents that help leading brands deliver better customer experiences by increasing customer lifetime value and personalizing interactions across multiple channels. |
| Category | Conversational AI, Voice AI, API Platform, Customer Service Automation | Conversational AI, AI Agent, Agentic AI, Customer Service Automation |
| Sells toBusiness model | B2B | B2B |
| Offering | Platform | Platform |
| Founded | 2013 | 2023 |
| Headquarters | San Mateo, United States | San Francisco, United States |
| Status | Active | Active |
Size, funding and growth
| Measure | Sendbird | Sierra |
|---|---|---|
| Employees | 299 | 900 |
| Headcount growthLast 12 months | -6.0% | +137.5% |
| Total funding | Not published | $680M |
| Valuation | Not published | $16B |
| LinkedIn followers | 36,871 | 88,150 |
StartupHub scores
Our own 0-100 ratings. They measure company strength and site quality, not which product suits you.
| Measure | Sendbird | Sierra |
|---|---|---|
| StartupHub scoreOur 0-100 rating | 61/100 | 48/100 |
| Traction | 60/100 | 60/100 |
| Team | 60/100 | 70/100 |
| Community | 15/100 | Not published |
| Search visibility | 31/100 | 32/100 |
| Quality | 70/100 | 40/100 |
| Agent readinessHow well an AI agent can read and act on the site | D (43/100) | D (43/100) |
| Domain ratingLink authority, 0-100 | 75/100 | 73/100 |
Technology
Detected on each public site, so it reflects the marketing stack as well as the product.
| Measure | Sendbird | Sierra |
|---|---|---|
| Hosting | Netlify | Vercel |
| CDN | Netlify | Cloudflare |
| CMS | Not detected | Ghost |
| Frameworks | Nuxt | Next.js, Tailwind CSS |
| Analytics | Google Analytics 4, Google Tag Manager | Not detected |
| Support stack | Not detected | HubSpot |
| Open source | Yes | No |
What users say
| Measure | Sendbird | Sierra |
|---|---|---|
| Reddit sentimentThreads we track | Not published | 0 positive, 0 negative across 5 threads |
“Anyone use Decagon or Sierra AI?. Anyone have experience with CX tools like Sierra AI and Decagon? Reviews all over look great online but I’m curious what people actually think of them. Worth the hype?”r/CustomerSuccess
Sendbird vs Sierra: common questions
Which is better, Sendbird or Sierra?
On our 0-100 score Sendbird rates higher (61/100 against 48/100). 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 21 data points above: read the rows that match what you are buying for.
How do Sendbird and Sierra compare on the numbers?
Sendbird leads on our overall score (61/100 against 48/100). Sierra leads on headcount (900 against 299), headcount growth (+137.5% against -6.0%), LinkedIn following (88,150 against 36,871).
What do real users say about Sendbird and Sierra?
Sierra: 0 positive and 0 negative mentions across 5 Reddit threads we track, mostly in r/CustomerSuccess.
Read the full Sendbird review and pricing or the Sierra review and pricing. You can also browse other Sendbird alternatives we track.