# Companies using TR-20

274 companies in our data use TR-20, and 115 of them name it in job posts they wrote. From October 2025 to August 2026, 122 job posts named it. Water Resources Engineer roles mention it most.

Data as of November 9, 2026. Source: Sumble.

## Which companies name TR-20 in the most job posts?

Infrastructure Consulting & Engineering leads with 86 job posts naming TR-20, followed by Dewberry and Brudis & Associates, Inc. Stantec is the newest of the five companies in the table, with its first job post naming it in April 2024.

| Company | Job posts | People | Recent job post |
|---|---:|---:|---|
| [Infrastructure Consulting & Engineering](https://sumble.com/orgs/infrastructure-consulting-&-engineering) | 86 | 0 | "Familiarity with software such as MicroStation, GEOPAK, HEC-RAS, HEC-HMS, TR-20, FHWA Hydraulics Toolbox, HY8, etc., is advantageous." (Senior Water Resources Engineer, May 28, 2026) |
| [Dewberry](https://sumble.com/orgs/dewberry) | 48 | 2 | "Knowledge of hydraulic programs such as TR-20, TR-55, HEC-HMS, HEC-RAS, ABSCOUR and HY-8 and GIS software is a plus" (Entry Level Water Resources Engineer, Sep 2, 2026) |
| [Brudis & Associates, Inc.](https://sumble.com/orgs/brudis-&-associates) | 44 | 1 | "Utilize hydraulic and hydrologic modeling programs and techniques including TR-20, TR-55, HEC-2, HEC-HMS, ABSCOUR, HEC-18 and HY-8." (Project Engineer: Water Resources and Environmental Department, Nov 1, 2026) |
| [Stantec](https://sumble.com/orgs/stantec) | 41 | 3 | "Hydrologic and hydraulic modeling experience including but not limited to TR-55, TR-20, PC-SWMM, HEC-HMS, HEC-RAS, HydroCAD, or similar." (Water Resources Engineer - Land Development, Sep 22, 2026) |
| [Core States Group](https://sumble.com/orgs/core-states-group) | 33 | 0 | "Civil3D, TR-20, TR-55, HEC-1, HydroCAD, Hydraflow, HEC-RAS, WaterCAD, and other design software a plus" (Senior Civil Project Engineer, Jul 22, 2026) |

## Is hiring for TR-20 growing?

From March to May 2026, 0.09 in every 10,000 job posts named TR-20; from June to August, 0.06 in every 10,000 job posts. One company accounts for most of that change.

| Month | Job posts naming it | All job posts | Per 10,000 job posts |
|---|---:|---:|---:|
| Oct 2025 | 6 | 1,413,673 | 0.04 |
| Nov 2025 | 10 | 1,822,119 | 0.05 |
| Dec 2025 | 4 | 1,236,103 | 0.03 |
| Jan 2026 | 8 | 1,828,002 | 0.04 |
| Feb 2026 | 11 | 1,856,647 | 0.06 |
| Mar 2026 | 18 | 1,850,711 | 0.10 |
| Apr 2026 | 15 | 1,728,886 | 0.09 |
| May 2026 | 14 | 1,821,509 | 0.08 |
| Jun 2026 | 13 | 1,909,496 | 0.07 |
| Jul 2026 | 13 | 1,815,180 | 0.07 |
| Aug 2026 | 10 | 1,835,698 | 0.05 |

## How many companies named TR-20 in a job post for the first time in recent months?

TR-20 showed up in job posts at 5 companies for the first time from June to August 2026, and 2 in the three months before. That brings the companies naming it for the first time since October 2025 to 11, through August 2026.

| Period | Companies naming it in a job post for the first time |
|---|---:|
| March to May 2026 | 2 |
| June to August 2026 | 5 |
| October 2025 to August 2026 | 11 |

Companies whose first job post naming it appeared in that period. Recruiters, staffing firms and job boards are left out.

## How do we know which companies use TR-20?

The evidence for TR-20 is close to even: 42% of these companies name it in job posts, and 58% come from employees' profiles. 35 show up in both job posts and employees' profiles.

| How we know | Companies | Share |
|---|---:|---:|
| Job posts name TR-20 | 115 | 42% |
| Employees' profiles list TR-20 | 159 | 58% |

## What size are the companies that use TR-20?

The largest group of TR-20 users is companies with 50 to 999 employees (49%), more than on the typical tech page. The second-largest group is companies with fewer than 50 employees, at 23%.

| Size | Share | Typical tech page |
|---|---:|---:|
| Under 50 employees | 23% | 22% |
| 50 to 999 | 49% | 38% |
| 1,000 to 5,000 | 16% | 17% |
| Over 5,000 | 12% | 23% |

## Where are TR-20 companies based?

The United States dominates for TR-20, with 81% of the companies that use it. The United Kingdom is second, at 3.1%.

| Country | Companies | Share | Typical tech page |
|---|---:|---:|---:|
| United States | 209 | 81% | 43% |
| United Kingdom | 8 | 3.1% | 6.4% |
| Canada | 6 | 2.3% | 3.6% |
| Australia | 4 | 1.5% | 2.2% |
| Brazil | 3 | 1.2% | 2.8% |
| India | 3 | 1.2% | 6.9% |

## Which teams work with TR-20?

No team dominates TR-20 job posts. Water resources comes first, at 5 companies.

| Team | Companies |
|---|---:|
| Water resources | 5 |
| Transportation | 4 |
| Civil engineering | 3 |
| Ecological restoration | 3 |
| Engineering division | 3 |
| Transportation water resources design services | 3 |

## Which roles mention TR-20 most?

TR-20 is mostly a Water Resources Engineer skill: 58% of the job posts naming it are for that role. Water Resources Engineer posts naming it numbered 36 from March to May 2026 and 13 from June to August.

| Role | Share | Oct 2025 to Aug 2026 | Mar to May 2026 | Jun to Aug 2026 |
|---|---:|---:|---:|---:|
| Water Resources Engineer | 58% | 71 | 36 | 13 |
| Program Manager | 9.8% | 12 | 4 | 2 |
| Civil Engineer | 7.4% | 9 | 1 | 6 |
| Engineer | 6.6% | 8 | 3 | 2 |
| Civil Designer | 1.6% | 2 | 2 | 0 |
| Skilled Trades | 1.6% | 2 | 0 | 1 |

## Which companies started naming TR-20 in job posts recently?

From April to August 2026, 6 companies with 50 or more employees posted their first job naming TR-20: 4 commercial and 2 mid-market. ATCS Inc. leads the new commercial companies, with 3 job posts from April to August.

| Group | Company | Job posts, April to August 2026 |
|---|---|---:|
| Commercial | [ATCS Inc.](https://sumble.com/orgs/atcs-inc.) | 3 |
| Commercial | [King & Moffatt Building Services](https://sumble.com/orgs/king-and-moffatt-building-services) | 1 |
| Commercial | [Morris & Ritchie Associates, Inc. (MRA)](https://sumble.com/orgs/morris-&-ritchie-associates) | 1 |
| Commercial | [The Will Group](https://sumble.com/orgs/will-group) | 1 |

Companies that named TR-20 in a job post for the first time between April and August 2026, ranked by their job posts in those months. AI-native companies get a group of their own, whatever their size. Recruiters and job boards are left out.

## What else do TR-20 companies use?

67% of TR-20 companies also use TR-55, against 0.04% of similar companies. HY-8 comes second, 448 times as common as usual, at 51%.

| Tool | Companies | Also name it | Typical | Times as common |
|---|---:|---:|---:|---:|
| TR-55 | 63 | 67% | 0.04% | 1670 times |
| HY-8 | 48 | 51% | 0.11% | 448 times |
| AASHTOWare BrR | 12 | 13% | 0.03% | 445 times |
| LEAP Bridge | 12 | 13% | 0.03% | 399 times |
| PondPack | 12 | 13% | 0.04% | 356 times |
| XPSWMM | 21 | 22% | 0.07% | 341 times |
| TransModeler | 11 | 12% | 0.03% | 341 times |
| Hydraflow | 20 | 21% | 0.06% | 340 times |

Shares are out of the 94 companies whose job posts name TR-20, not counting firms whose job posts name almost every technology.

## About this data

Sumble built this page. Sumble gives sales, marketing and other GTM teams technographics and hiring signals for the companies they sell to: the technologies each company uses, which teams are hiring and for what, and who reports to whom. That helps a team know who to contact, why now, and what to say.

Sumble covers more than 3.6 million companies, 93 million job posts collected since 2022 and 194 million employee profiles, and tracks more than 37,000 technologies. It finds which technologies a company uses by reading its job posts and its employees' public profiles.

Sumble has a free plan, and the same data is available through its API and MCP server.

A company counts when its own job posts or its employees' public profiles name the technology. Hiring is that technology's share of all job posts collected each month. Quotes are copied word for word from the companies' job posts.

Every figure on this page comes from Sumble's own analysis, and you won't find it outside Sumble.