ACAS VS Rapid7
As of 5 November 2026, Rapid7 is named by 242 companies and ACAS by 376; ACAS skews to companies under 200 people (42% vs 31%), Rapid7 to companies over 1,000 (41% vs 28%).
As of 5 November 2026 · refreshed daily · counts move as websites, DNS and career sites are re-read.
The website-and-DNS footprint is not comparable between a marketing suite and a CRM: ACAS's script and mail records show on hundreds of thousands of small sites, Rapid7 rarely leaves a trace outside its own apps. Compare on the job-posting numbers; use the footprint for reach.
- ACAS: 2–200 employees
- 42%
- Rapid7: 2–200 employees
- 31%
- ACAS: 1,000+ employees
- 28%
- Rapid7: 1,000+ employees
- 41%
- Postings per company, 90 days
- 4.6 · 2.4
- Website or DNS footprint
- 0 · 0
Who chooses which
Share of each tool's companies in every segment. "Leans" marks a gap of more than two points.
| Segment | ACAS | share | Rapid7 | share | Leans |
|---|---|---|---|---|---|
| Self-employed | 7 | 2% | 5 | 2% | even |
| 2-10 employees | 13 | 3% | 12 | 5% | even |
| 11-50 employees | 38 | 10% | 23 | 10% | even |
| 51-200 employees | 107 | 28% | 40 | 17% | ACAS |
| 201-500 employees | 69 | 18% | 28 | 12% | ACAS |
| 501-1000 employees | 38 | 10% | 35 | 14% | Rapid7 |
| 1001-5000 employees | 46 | 12% | 43 | 18% | Rapid7 |
| 5001-10000 employees | 17 | 5% | 18 | 7% | Rapid7 |
| 10,001+ employees | 41 | 11% | 38 | 16% | Rapid7 |
| Segment | ACAS | share | Rapid7 | share | Leans |
|---|---|---|---|---|---|
| Technology & software | 159 | 42% | 87 | 36% | ACAS |
| Business & finance services | 95 | 25% | 61 | 25% | even |
| Manufacturing & industry | 76 | 20% | 31 | 13% | ACAS |
| Public, community & associations | 12 | 3% | 5 | 2% | even |
| Consumer services & leisure | 9 | 2% | 7 | 3% | even |
| Property & construction | 7 | 2% | – | – | outside top 12 |
| Transport, logistics & rental | 6 | 2% | 7 | 3% | even |
| Media & content | 5 | 1% | 7 | 3% | even |
| Commerce & trade | 3 | 1% | 9 | 4% | Rapid7 |
| Health care | 2 | 1% | 6 | 2% | even |
| Hospitality & travel | 1 | 0% | 5 | 2% | even |
| Utilities & infrastructure | 1 | 0% | 8 | 3% | Rapid7 |
| Automotive | – | – | 5 | 2% | outside top 12 |
| Segment | ACAS | share | Rapid7 | share | Leans |
|---|---|---|---|---|---|
| United States | 328 | 87% | 164 | 68% | ACAS |
| United Kingdom | 18 | 5% | 15 | 6% | even |
| Canada | 6 | 2% | 6 | 2% | even |
| Spain | 3 | 1% | – | – | outside top 12 |
| Australia | 1 | 0% | 5 | 2% | even |
| Switzerland | 1 | 0% | – | – | outside top 12 |
| Czechia | 1 | 0% | – | – | outside top 12 |
| Germany | 1 | 0% | 9 | 4% | Rapid7 |
| Denmark | 1 | 0% | – | – | outside top 12 |
| France | 1 | 0% | 7 | 3% | Rapid7 |
| Ireland | 1 | 0% | – | – | outside top 12 |
| India | 1 | 0% | 2 | 1% | even |
| Belgium | – | – | 3 | 1% | outside top 12 |
| Brazil | – | – | 3 | 1% | outside top 12 |
| Netherlands | – | – | 3 | 1% | outside top 12 |
| Sweden | – | – | 3 | 1% | outside top 12 |
| PH | – | – | 2 | 1% | outside top 12 |
| Segment | ACAS | share | Rapid7 | share | Leans |
|---|---|---|---|---|---|
| IT operations & business systems | 1,592 | 74% | 494 | 71% | ACAS |
| Finance & accounting | 110 | 5% | 6 | 1% | ACAS |
| Engineering (non-software) | 84 | 4% | 16 | 2% | even |
| Software engineering | 60 | 3% | 35 | 5% | Rapid7 |
| Skilled trades and field service | 26 | 1% | – | – | outside top 12 |
| Product, program & project management | 21 | 1% | 10 | 1% | even |
| Legal, compliance & risk | 17 | 1% | 2 | 0% | even |
| Human resources | 16 | 1% | – | – | outside top 12 |
| Data & AI | 13 | 1% | 6 | 1% | even |
| Customer service & success | 7 | 0% | 9 | 1% | even |
| Administration & office | 4 | 0% | – | – | outside top 12 |
| Education & training | 4 | 0% | 2 | 0% | even |
| Facilities cleaning and security | 4 | 0% | 7 | 1% | even |
| General management & consulting | 3 | 0% | 2 | 0% | even |
| Logistics warehouse and transport | 3 | 0% | – | – | outside top 12 |
| Unclassified | 3 | 0% | 1 | 0% | even |
| Manufacturing and production | 2 | 0% | – | – | outside top 12 |
| Social care and community | 2 | 0% | – | – | outside top 12 |
| Arts media and entertainment | 1 | 0% | – | – | outside top 12 |
| Business development & strategy | 1 | 0% | 5 | 1% | even |
| Procurement and purchasing | 1 | 0% | – | – | outside top 12 |
| Sales | – | – | 24 | 3% | outside top 12 |
| Quality, safety & environment | – | – | 10 | 1% | outside top 12 |
| Marketing & communications | – | – | 5 | 1% | outside top 12 |
| Healthcare support and caregiving | – | – | 1 | 0% | outside top 12 |
The companies behind each column
Companies using ACAS →
Companies using Rapid7 →
vulnerability management ranked →
Quote the sentence with the date and the link. The numbers change daily; the link always shows the current ones.
Rapid7 is named by 242 companies in job postings and ACAS by 376; 0 name both. (Breaknorm, 5 November 2026, https://breaknorm.co/compare/acas-vs-rapid7)
Read from the source, not self-reported
Every number on this page can be traced to a page we crawled or a posting we read. Full methodology →
- Job postingsRead hourly from career sites. A tool counts when the employer's own text names it as the team's system; both tools can count for one company.
- Website and DNSScripts and embeds on the company's pages, plus SPF, DKIM, MX and CNAME records of its domain that point at the vendor.
- SegmentsCountry, size and industry from the company profile built from its website.
- Not a reviewNo ratings, prices or feature claims. For those, read the vendors.
ACAS vs Rapid7: questions
Which is more used, ACAS or Rapid7?
By companies naming it in their own job postings, ACAS (376) over Rapid7 (242). By website-and-DNS footprint, Rapid7 (0 vs 0), because its scripts and mail records sit on many small company sites.
Who chooses ACAS?
42% of ACAS companies have 2 to 200 employees, against 31% for Rapid7. 28% of ACAS companies have over 1,000 employees, against 41% for Rapid7.
Do companies run both?
0 companies name both in their postings, usually ACAS in marketing and Rapid7 in sales, or during a migration.
Where do these numbers come from?
From the employer's own text in job postings read hourly from career sites, and from scripts found on company websites in our crawl. No vendor data, no surveys.
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