EPA SWMM VS PTV Vissim
As of 2 November 2026, PTV Vissim is named by 147 companies and EPA SWMM by 157; EPA SWMM skews to companies under 200 people (35% vs 29%), PTV Vissim to companies over 1,000 (37% vs 36%).
As of 2 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: EPA SWMM's script and mail records show on hundreds of thousands of small sites, PTV Vissim rarely leaves a trace outside its own apps. Compare on the job-posting numbers; use the footprint for reach.
- EPA SWMM: 2–200 employees
- 35%
- PTV Vissim: 2–200 employees
- 29%
- EPA SWMM: 1,000+ employees
- 36%
- PTV Vissim: 1,000+ employees
- 37%
- Postings per company, 90 days
- 3.3 · 6.5
- 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 | EPA SWMM | share | PTV Vissim | share | Leans |
|---|---|---|---|---|---|
| Self-employed | 1 | 1% | – | – | outside top 12 |
| 2-10 employees | 4 | 3% | 8 | 5% | PTV Vissim |
| 11-50 employees | 16 | 10% | 8 | 5% | EPA SWMM |
| 51-200 employees | 35 | 22% | 27 | 18% | EPA SWMM |
| 201-500 employees | 29 | 18% | 29 | 20% | even |
| 501-1000 employees | 16 | 10% | 20 | 14% | PTV Vissim |
| 1001-5000 employees | 34 | 22% | 38 | 26% | PTV Vissim |
| 5001-10000 employees | 9 | 6% | 5 | 3% | EPA SWMM |
| 10,001+ employees | 13 | 8% | 12 | 8% | even |
| Segment | EPA SWMM | share | PTV Vissim | share | Leans |
|---|---|---|---|---|---|
| Business & finance services | 109 | 69% | 108 | 73% | PTV Vissim |
| Property & construction | 31 | 20% | 27 | 18% | even |
| Manufacturing & industry | 7 | 4% | 1 | 1% | EPA SWMM |
| Public, community & associations | 4 | 3% | 6 | 4% | even |
| Utilities & infrastructure | 3 | 2% | 1 | 1% | even |
| Technology & software | 2 | 1% | 1 | 1% | even |
| Consumer services & leisure | 1 | 1% | 1 | 1% | even |
| Media & content | – | – | 2 | 1% | outside top 12 |
| Segment | EPA SWMM | share | PTV Vissim | share | Leans |
|---|---|---|---|---|---|
| United States | 126 | 80% | 108 | 73% | EPA SWMM |
| Canada | 10 | 6% | 5 | 3% | EPA SWMM |
| United Kingdom | 4 | 3% | 10 | 7% | PTV Vissim |
| France | 3 | 2% | 3 | 2% | even |
| Italy | 3 | 2% | – | – | outside top 12 |
| Australia | 2 | 1% | 2 | 1% | even |
| Spain | 2 | 1% | 3 | 2% | even |
| Belgium | 1 | 1% | – | – | outside top 12 |
| Switzerland | 1 | 1% | 1 | 1% | even |
| Germany | 1 | 1% | 7 | 5% | PTV Vissim |
| Denmark | 1 | 1% | 1 | 1% | even |
| Netherlands | 1 | 1% | 2 | 1% | even |
| Austria | – | – | 1 | 1% | outside top 12 |
| Brazil | – | – | 1 | 1% | outside top 12 |
| Segment | EPA SWMM | share | PTV Vissim | share | Leans |
|---|---|---|---|---|---|
| Engineering (non-software) | 523 | 75% | 1,072 | 82% | PTV Vissim |
| Construction and civil | 75 | 11% | 86 | 7% | EPA SWMM |
| Quality, safety & environment | 15 | 2% | – | – | outside top 12 |
| Product, program & project management | 7 | 1% | 5 | 0% | even |
| General management & consulting | 5 | 1% | 1 | 0% | even |
| Research and science | 5 | 1% | 1 | 0% | even |
| Data & AI | 1 | 0% | 2 | 0% | even |
| Legal, compliance & risk | 1 | 0% | – | – | outside top 12 |
| Unclassified | 1 | 0% | 1 | 0% | even |
| Logistics warehouse and transport | – | – | 10 | 1% | outside top 12 |
| IT operations & business systems | – | – | 3 | 0% | outside top 12 |
| Education & training | – | – | 2 | 0% | outside top 12 |
| Real estate and property | – | – | 2 | 0% | outside top 12 |
The companies behind each column
Companies using EPA SWMM →
Companies using PTV Vissim →
civil infrastructure water ranked →
Quote the sentence with the date and the link. The numbers change daily; the link always shows the current ones.
PTV Vissim is named by 147 companies in job postings and EPA SWMM by 157; 2 name both. (Breaknorm, 2 November 2026, https://breaknorm.co/compare/epa-swmm-vs-ptv-vissim)
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.
EPA SWMM vs PTV Vissim: questions
Which is more used, EPA SWMM or PTV Vissim?
By companies naming it in their own job postings, EPA SWMM (157) over PTV Vissim (147). By website-and-DNS footprint, PTV Vissim (0 vs 0), because its scripts and mail records sit on many small company sites.
Who chooses EPA SWMM?
35% of EPA SWMM companies have 2 to 200 employees, against 29% for PTV Vissim. 36% of EPA SWMM companies have over 1,000 employees, against 37% for PTV Vissim.
Do companies run both?
2 companies name both in their postings, usually EPA SWMM in marketing and PTV Vissim 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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