Constant Contact vs OneSignal
Constant Contact vs OneSignal, 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: Constant Contact is on 52/100 and OneSignal on 61/100.
Where each one leads
Constant Contact
- headcount: 1,149 against 171
- LinkedIn following: 44,549 against 11,296
OneSignal
- our overall score: 61/100 against 52/100
- agent readiness: 58/100 against 44/100
- funding raised: $57.0M against $37.0M
At a glance
| Measure | Constant Contact | OneSignal |
|---|---|---|
| What it is | Digital marketing platform for small businesses and nonprofits, offering email, SMS, social media, and CRM tools. | Omnichannel customer engagement platform for personalized messaging across mobile and web. |
| Category | Digital Marketing, Email Marketing, Marketing Automation, CRM | Customer Engagement Platform, Marketing Automation, Push Notifications, In-App Messaging |
| Sells toBusiness model | B2B | B2B |
| Offering | Platform | Platform |
| Founded | 1995 | 2011 |
| Headquarters | Waltham, United States | San Mateo, United States |
| Status | Active | Active |
Size, funding and growth
| Measure | Constant Contact | OneSignal |
|---|---|---|
| Employees | 1,149 | 171 |
| Total funding | $37.0M | $57.0M |
| Latest round | Post IPO | Series C |
| LinkedIn followers | 44,549 | 11,296 |
StartupHub scores
Our own 0-100 ratings. They measure company strength and site quality, not which product suits you.
| Measure | Constant Contact | OneSignal |
|---|---|---|
| StartupHub scoreOur 0-100 rating | 52/100 | 61/100 |
| Traction | 58/100 | 59/100 |
| Team | 30/100 | 60/100 |
| Community | 8/100 | 15/100 |
| Search visibility | 45/100 | 35/100 |
| Quality | 58/100 | 68/100 |
| Agent readinessHow well an AI agent can read and act on the site | D (44/100) | D (58/100) |
| Domain ratingLink authority, 0-100 | 92/100 | 86/100 |
Technology
Detected on each public site, so it reflects the marketing stack as well as the product.
| Measure | Constant Contact | OneSignal |
|---|---|---|
| CDN | Cloudflare | Cloudflare |
| Frameworks | Not detected | Jquery, Tailwind CSS, Bootstrap |
| Analytics | Not detected | Google Tag Manager |
| Open source | No | Yes |
Constant Contact vs OneSignal: common questions
Which is better, Constant Contact or OneSignal?
On our 0-100 score OneSignal rates higher (61/100 against 52/100). 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 Constant Contact and OneSignal compare on the numbers?
Constant Contact leads on headcount (1,149 against 171), LinkedIn following (44,549 against 11,296). OneSignal leads on our overall score (61/100 against 52/100), agent readiness (58/100 against 44/100), funding raised ($57.0M against $37.0M).
Read the full Constant Contact review and pricing or the OneSignal review and pricing. You can also browse other Constant Contact alternatives we track.