Carlson Software VS EPA SWMM
As of 30 October 2026, EPA SWMM is named by 157 companies and Carlson Software by 104; Carlson Software skews to companies under 200 people (36% vs 35%), EPA SWMM to companies over 1,000 (36% vs 33%).
As of 30 October 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: Carlson Software's script and mail records show on hundreds of thousands of small sites, EPA SWMM rarely leaves a trace outside its own apps. Compare on the job-posting numbers; use the footprint for reach.
- Carlson Software: 2–200 employees
- 36%
- EPA SWMM: 2–200 employees
- 35%
- Carlson Software: 1,000+ employees
- 33%
- EPA SWMM: 1,000+ employees
- 36%
- Postings per company, 90 days
- 2.5 · 3.0
- 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 | Carlson Software | share | EPA SWMM | share | Leans |
|---|---|---|---|---|---|
| Self-employed | 1 | 1% | 1 | 1% | even |
| 2-10 employees | 3 | 3% | 4 | 3% | even |
| 11-50 employees | 14 | 13% | 16 | 10% | Carlson Software |
| 51-200 employees | 20 | 19% | 35 | 22% | EPA SWMM |
| 201-500 employees | 20 | 19% | 29 | 18% | even |
| 501-1000 employees | 12 | 12% | 16 | 10% | even |
| 1001-5000 employees | 27 | 26% | 34 | 22% | Carlson Software |
| 5001-10000 employees | 6 | 6% | 9 | 6% | even |
| 10,001+ employees | 1 | 1% | 13 | 8% | EPA SWMM |
| Segment | Carlson Software | share | EPA SWMM | share | Leans |
|---|---|---|---|---|---|
| Business & finance services | 50 | 48% | 109 | 69% | EPA SWMM |
| Property & construction | 28 | 27% | 31 | 20% | Carlson Software |
| Manufacturing & industry | 14 | 13% | 7 | 4% | Carlson Software |
| Utilities & infrastructure | 4 | 4% | 3 | 2% | even |
| Commerce & trade | 3 | 3% | – | – | outside top 12 |
| Public, community & associations | 3 | 3% | 4 | 3% | even |
| Media & content | 1 | 1% | – | – | outside top 12 |
| Technology & software | 1 | 1% | 2 | 1% | even |
| Consumer services & leisure | – | – | 1 | 1% | outside top 12 |
| Segment | Carlson Software | share | EPA SWMM | share | Leans |
|---|---|---|---|---|---|
| United States | 98 | 94% | 126 | 80% | Carlson Software |
| Canada | 4 | 4% | 10 | 6% | EPA SWMM |
| Belgium | 1 | 1% | 1 | 1% | even |
| United Kingdom | – | – | 4 | 3% | outside top 12 |
| France | – | – | 3 | 2% | outside top 12 |
| Italy | – | – | 3 | 2% | outside top 12 |
| Australia | – | – | 2 | 1% | outside top 12 |
| Spain | – | – | 2 | 1% | outside top 12 |
| Switzerland | – | – | 1 | 1% | outside top 12 |
| Germany | – | – | 1 | 1% | outside top 12 |
| Denmark | – | – | 1 | 1% | outside top 12 |
| Netherlands | – | – | 1 | 1% | outside top 12 |
| Segment | Carlson Software | share | EPA SWMM | share | Leans |
|---|---|---|---|---|---|
| Construction and civil | 278 | 67% | 61 | 10% | Carlson Software |
| Engineering (non-software) | 88 | 21% | 487 | 77% | EPA SWMM |
| Data & AI | 3 | 1% | 1 | 0% | even |
| Product, program & project management | 3 | 1% | 7 | 1% | even |
| Unclassified | 2 | 0% | 1 | 0% | even |
| Education & training | 1 | 0% | – | – | outside top 12 |
| Manufacturing and production | 1 | 0% | – | – | outside top 12 |
| Real estate and property | 1 | 0% | – | – | outside top 12 |
| Sales | 1 | 0% | – | – | outside top 12 |
| Quality, safety & environment | – | – | 15 | 2% | outside top 12 |
| General management & consulting | – | – | 5 | 1% | outside top 12 |
| Research and science | – | – | 5 | 1% | outside top 12 |
| Legal, compliance & risk | – | – | 1 | 0% | outside top 12 |
The companies behind each column
Companies using Carlson Software →
Companies using EPA SWMM →
civil infrastructure water ranked →
Quote the sentence with the date and the link. The numbers change daily; the link always shows the current ones.
EPA SWMM is named by 157 companies in job postings and Carlson Software by 104; 0 name both. (Breaknorm, 30 October 2026, https://breaknorm.co/compare/carlson-software-vs-epa-swmm)
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.
Carlson Software vs EPA SWMM: questions
Which is more used, Carlson Software or EPA SWMM?
By companies naming it in their own job postings, EPA SWMM (157) over Carlson Software (104). By website-and-DNS footprint, EPA SWMM (0 vs 0), because its scripts and mail records sit on many small company sites.
Who chooses Carlson Software?
36% of Carlson Software companies have 2 to 200 employees, against 35% for EPA SWMM. 33% of Carlson Software companies have over 1,000 employees, against 36% for EPA SWMM.
Do companies run both?
0 companies name both in their postings, usually Carlson Software in marketing and EPA SWMM 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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