ActiveCampaign vs Kluster
ActiveCampaign vs Kluster, compared side by side on 16 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: ActiveCampaign is on 60/100 and Kluster on 55/100.
Where each one leads
ActiveCampaign
- our overall score: 60/100 against 55/100
- agent readiness: 56/100 against 49/100
- domain rating: 91/100 against 40/100
- headcount: 846 against 5
- funding raised: $50.0M against $10.0M
- LinkedIn following: 191,985 against 386
Kluster
Leads on none of the measures we hold for both companies.
At a glance
| Measure | ActiveCampaign | Kluster |
|---|---|---|
| What it is | Customer experience automation platform with email marketing, CRM, and marketing automation. | kluster.ai has been acquired by MITO. kluster.ai services were sunset on June 9, 2026. |
| Category | Agentic AI, Marketing Automation, Customer Service, AI Agents | Agentic AI, AI Agents, Agentic Commerce, Agentic SEO |
| Sells toBusiness model | B2B | B2B |
| Offering | Platform | Software |
| Founded | 1999 | 2021 |
| Headquarters | Chicago, United States | Tel Aviv, Israel |
| Status | Active | Active |
Size, funding and growth
| Measure | ActiveCampaign | Kluster |
|---|---|---|
| Employees | 846 | 5 |
| Headcount growthLast 12 months | -4.0% | Not published |
| Total funding | $50.0M | $10.0M |
| Latest round | Series C | Seed |
| LinkedIn followers | 191,985 | 386 |
StartupHub scores
Our own 0-100 ratings. They measure company strength and site quality, not which product suits you.
| Measure | ActiveCampaign | Kluster |
|---|---|---|
| StartupHub scoreOur 0-100 rating | 60/100 | 55/100 |
| Traction | 58/100 | Not published |
| Team | Not published | 24/100 |
| Search visibility | 44/100 | 47/100 |
| Quality | 78/100 | Not published |
| Agent readinessHow well an AI agent can read and act on the site | D (56/100) | D (49/100) |
| Domain ratingLink authority, 0-100 | 91/100 | 40/100 |
Technology
Detected on each public site, so it reflects the marketing stack as well as the product.
| Measure | ActiveCampaign | Kluster |
|---|---|---|
| Hosting | Not detected | Heroku |
| CDN | Cloudflare | Not detected |
| Frameworks | Tailwind CSS | Next.js, Tailwind CSS |
| Analytics | Google Tag Manager | Not detected |
ActiveCampaign vs Kluster: common questions
Which is better, ActiveCampaign or Kluster?
On our 0-100 score ActiveCampaign rates higher (60/100 against 55/100). 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 16 data points above: read the rows that match what you are buying for.
How do ActiveCampaign and Kluster compare on the numbers?
ActiveCampaign leads on our overall score (60/100 against 55/100), agent readiness (56/100 against 49/100), domain rating (91/100 against 40/100), headcount (846 against 5), funding raised ($50.0M against $10.0M), LinkedIn following (191,985 against 386).
Read the full ActiveCampaign review and pricing or the Kluster review and pricing. You can also browse other ActiveCampaign alternatives we track.