B12 vs Constant Contact
B12 vs Constant Contact, compared side by side on 17 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: B12 is on 49/100 and Constant Contact on 52/100.
Where each one leads
B12
- agent readiness: 62/100 against 44/100
Constant Contact
- our overall score: 52/100 against 49/100
- domain rating: 92/100 against 81/100
- funding raised: $37.0M against $28.1M
At a glance
| Measure | B12 | Constant Contact |
|---|---|---|
| What it is | A human-assisted AI platform that helps businesses build, manage, and optimize professional websites with integrated tools for client management. | Digital marketing platform for small businesses and nonprofits, offering email, SMS, social media, and CRM tools. |
| Category | AI Website Builder, Website Builder, Generative AI, AI Agent | Digital Marketing, Email Marketing, Marketing Automation, CRM |
| Sells toBusiness model | B2B | B2B |
| Offering | Platform | Platform |
| Founded | 2015 | 1995 |
| Headquarters | New York, United States | Waltham, United States |
| Status | Active | Active |
Size, funding and growth
| Measure | B12 | Constant Contact |
|---|---|---|
| Employees | Not published | 1,149 |
| Total funding | $28.1M | $37.0M |
| Latest round | Series B | Post IPO |
| LinkedIn followers | Not published | 44,549 |
StartupHub scores
Our own 0-100 ratings. They measure company strength and site quality, not which product suits you.
| Measure | B12 | Constant Contact |
|---|---|---|
| StartupHub scoreOur 0-100 rating | 49/100 | 52/100 |
| Traction | 37/100 | 58/100 |
| Team | 50/100 | 30/100 |
| Community | Not published | 8/100 |
| Search visibility | 12/100 | 45/100 |
| Quality | 58/100 | 58/100 |
| Agent readinessHow well an AI agent can read and act on the site | C (62/100) | D (44/100) |
| Domain ratingLink authority, 0-100 | 81/100 | 92/100 |
Technology
Detected on each public site, so it reflects the marketing stack as well as the product.
| Measure | B12 | Constant Contact |
|---|---|---|
| Hosting | Netlify | Not detected |
| CDN | CloudFront | Cloudflare |
| Analytics | Google Tag Manager | Not detected |
B12 vs Constant Contact: common questions
Which is better, B12 or Constant Contact?
On our 0-100 score Constant Contact rates higher (52/100 against 49/100). 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 17 data points above: read the rows that match what you are buying for.
How do B12 and Constant Contact compare on the numbers?
B12 leads on agent readiness (62/100 against 44/100). Constant Contact leads on our overall score (52/100 against 49/100), domain rating (92/100 against 81/100), funding raised ($37.0M against $28.1M).
Read the full B12 review and pricing or the Constant Contact review and pricing. You can also browse other B12 alternatives we track.