Five9 vs RingCentral
Five9 vs RingCentral, compared side by side on 19 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: Five9 is on 62/100 and RingCentral on 62/100.
Where each one leads
Five9
- funding raised: $71.6M against $53.7M
RingCentral
- domain rating: 87/100 against 77/100
- headcount: 6,682 against 3,051
At a glance
| Measure | Five9 | RingCentral |
|---|---|---|
| What it is | Cloud contact center software provider. | A leading provider of AI-powered global enterprise cloud communications and contact center solutions. |
| Category | Artificial Intelligence, Customer Service, Cloud Computing, Cloud Contact Center Software | Cloud Communications, Unified Communications, Contact Center, Artificial Intelligence |
| Sells toBusiness model | B2B | B2B |
| Offering | Software | Software |
| Founded | 2001 | 1999 |
| Headquarters | San Ramon, USA | Belmont, United States |
| Status | Active | Active |
Size, funding and growth
| Measure | Five9 | RingCentral |
|---|---|---|
| Employees | 3,051 | 6,682 |
| Total funding | $71.6M | $53.7M |
| Latest round | Series D | Debt Financing |
| Valuation | $1.1B | $1.1B |
| LinkedIn followers | 121,557 | Not published |
StartupHub scores
Our own 0-100 ratings. They measure company strength and site quality, not which product suits you.
| Measure | Five9 | RingCentral |
|---|---|---|
| StartupHub scoreOur 0-100 rating | 62/100 | 62/100 |
| Traction | 59/100 | 59/100 |
| Team | 70/100 | 30/100 |
| Community | 15/100 | 8/100 |
| Search visibility | 45/100 | 36/100 |
| Quality | 68/100 | 78/100 |
| Agent readinessHow well an AI agent can read and act on the site | D (41/100) | D (44/100) |
| Domain ratingLink authority, 0-100 | 77/100 | 87/100 |
Technology
Detected on each public site, so it reflects the marketing stack as well as the product.
| Measure | Five9 | RingCentral |
|---|---|---|
| Hosting | Self Managed | Not detected |
| CDN | Not detected | Cloudflare |
| Frameworks | Tailwind CSS, Bootstrap | Not detected |
| Analytics | Google Tag Manager | Not detected |
Five9 vs RingCentral: common questions
Which is better, Five9 or RingCentral?
Both score the same on our 0-100 rating, so the choice comes down to the 19 data points in the tables above rather than overall company strength.
How do Five9 and RingCentral compare on the numbers?
Five9 leads on funding raised ($71.6M against $53.7M). RingCentral leads on domain rating (87/100 against 77/100), headcount (6,682 against 3,051).
Read the full Five9 review and pricing or the RingCentral review and pricing. You can also browse other Five9 alternatives we track.

