Ambassador vs SendGrid
Ambassador vs SendGrid, 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: Ambassador is on 56/100 and SendGrid on 70/100.
Where each one leads
Ambassador
Leads on none of the measures we hold for both companies.
SendGrid
- our overall score: 70/100 against 56/100
- domain rating: 91/100 against 75/100
- headcount: 6,600 against 43
- funding raised: $79.8M against $20.0M
- LinkedIn following: 499,928 against 4,542
At a glance
| Measure | Ambassador | SendGrid |
|---|---|---|
| What it is | Platform for customer advocacy and referral programs, driving growth through word-of-mouth marketing. | Cloud-based email delivery platform for transactional and marketing emails. |
| Category | Customer Advocacy, Referral Marketing, Word-of-Mouth Marketing, Marketing Automation | Communication APIs, Email API, Marketing Automation, Transactional Email |
| Sells toBusiness model | B2B | B2B |
| Offering | Software | Platform |
| Founded | 2014 | 2009 |
| Headquarters | San Francisco, United States | Denver, United States |
| Status | Active | Active |
Size, funding and growth
| Measure | Ambassador | SendGrid |
|---|---|---|
| Employees | 43 | 6,600 |
| Headcount growthLast 12 months | Not published | +1.4% |
| Total funding | $20.0M | $79.8M |
| Latest round | Series B | Series D |
| LinkedIn followers | 4,542 | 499,928 |
StartupHub scores
Our own 0-100 ratings. They measure company strength and site quality, not which product suits you.
| Measure | Ambassador | SendGrid |
|---|---|---|
| StartupHub scoreOur 0-100 rating | 56/100 | 70/100 |
| Traction | 53/100 | 60/100 |
| Team | 60/100 | 70/100 |
| Community | 17/100 | Not published |
| Search visibility | 37/100 | 46/100 |
| Quality | 62/100 | 78/100 |
| Agent readinessHow well an AI agent can read and act on the site | D (46/100) | D (48/100) |
| Domain ratingLink authority, 0-100 | 75/100 | 91/100 |
Technology
Detected on each public site, so it reflects the marketing stack as well as the product.
| Measure | Ambassador | SendGrid |
|---|---|---|
| Hosting | Not detected | AWS |
| CDN | Cloudflare | CloudFront |
| Analytics | Google Analytics 4, Google Tag Manager | Google Tag Manager, Segment |
| Support stack | HubSpot | Not detected |
Ambassador vs SendGrid: common questions
Which is better, Ambassador or SendGrid?
On our 0-100 score SendGrid rates higher (70/100 against 56/100). 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 Ambassador and SendGrid compare on the numbers?
SendGrid leads on our overall score (70/100 against 56/100), domain rating (91/100 against 75/100), headcount (6,600 against 43), funding raised ($79.8M against $20.0M), LinkedIn following (499,928 against 4,542).
Read the full Ambassador review and pricing or the SendGrid review and pricing. You can also browse other Ambassador alternatives we track.

