# Companies using HEC-HMS

We found 7,925 companies that use HEC-HMS. 1,366 of them name it in their own job posts, and the rest through employees' public profiles. Hiring for it is steady, with 3,257 job posts naming it from October 2025 to August 2026. Water resources teams are its most common home.

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

## Which companies name HEC-HMS in the most job posts?

The five companies with the most job posts naming HEC-HMS are WSP, AECOM, Bowman Consulting, Stantec and HDR. All five companies are in Professional Services.

| Company | Job posts | People | Recent job post |
|---|---:|---:|---|
| [WSP](https://sumble.com/orgs/wsp) | 2,632 | 220 | "…Civil 3D, ArcGIS, InRoads, Geopak, GeoSlope, ANSYS, STADD, HEC-RAS, HEC-HMS ." (Early Career Structural Engineer (Buildings), Nov 7, 2026) |
| [AECOM](https://sumble.com/orgs/aecom) | 833 | 271 | "Perform hydrologic and hydraulic modeling using HEC-HMS and/or HEC-RAS." (Civil Engineer (Hydrology / Hydraulics), Nov 1, 2026) |
| [Bowman Consulting](https://sumble.com/orgs/bowman) | 723 | 15 | "Knowledge of AutoCAD, Civil3D, AES, CIVILD, WSPGW, PCSWMM, StormCAD, HEC-HMS, HEC-RAS preferred." (Civil Engineer II, Nov 4, 2026) |
| [Stantec](https://sumble.com/orgs/stantec) | 626 | 171 | "Working with engineering modeling software that may include CAD, Revit, HEC-RAS, HEC-HMS, and InfoWorks ICM, or other water related programs." (Civil Engineering Intern - Water (Summer 2027), Sep 24, 2026) |
| [HDR](https://sumble.com/orgs/hdr) | 400 | 153 | "ArcGIS Pro and HEC-HMS experience is preferred" (Transportation Hydraulics Engineer, Nov 1, 2026) |

## Is hiring for HEC-HMS growing?

Hiring for HEC-HMS barely changed, at 1.7 in every 10,000 job posts from June to August 2026 against 1.6 from March to May. Its busiest month was February 2026, at 2.0.

| Month | Job posts naming it | All job posts | Per 10,000 job posts |
|---|---:|---:|---:|
| Oct 2025 | 216 | 1,413,673 | 1.5 |
| Nov 2025 | 274 | 1,822,119 | 1.5 |
| Dec 2025 | 204 | 1,236,103 | 1.7 |
| Jan 2026 | 338 | 1,828,002 | 1.8 |
| Feb 2026 | 380 | 1,856,647 | 2.0 |
| Mar 2026 | 301 | 1,850,711 | 1.6 |
| Apr 2026 | 261 | 1,728,886 | 1.5 |
| May 2026 | 319 | 1,821,509 | 1.8 |
| Jun 2026 | 354 | 1,909,496 | 1.9 |
| Jul 2026 | 319 | 1,815,180 | 1.8 |
| Aug 2026 | 291 | 1,835,698 | 1.6 |

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

HEC-HMS showed up in job posts at 77 companies for the first time from June to August 2026, and 47 in the three months before. Over the 11 months from October 2025, 212 companies posted their first job naming it.

| Period | Companies naming it in a job post for the first time |
|---|---:|
| March to May 2026 | 47 |
| June to August 2026 | 77 |
| October 2025 to August 2026 | 212 |

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 HEC-HMS?

Most of these companies come from employees' profiles: 83% have no job post naming HEC-HMS. 719 show up in both job posts and employees' profiles.

| How we know | Companies | Share |
|---|---:|---:|
| Job posts name HEC-HMS | 1,366 | 17% |
| Employees' profiles list HEC-HMS | 6,559 | 83% |

## What size are the companies that use HEC-HMS?

Companies with 50 to 999 employees stand out among HEC-HMS users: 47%, against 38% on the typical tech page. 878 of its companies have more than 5,000 employees.

| Size | Share | Typical tech page |
|---|---:|---:|
| Under 50 employees | 25% | 22% |
| 50 to 999 | 47% | 38% |
| 1,000 to 5,000 | 17% | 17% |
| Over 5,000 | 11% | 23% |

## Where are HEC-HMS companies based?

Spain is 3.7 times as common among HEC-HMS companies as on the typical tech page, at 6.8%. The United States leads overall with 43%. India is less common than usual, at 3.6% against 6.9% on the typical tech page.

| Country | Companies | Share | Typical tech page |
|---|---:|---:|---:|
| United States | 3,289 | 43% | 43% |
| Spain | 514 | 6.8% | 1.8% |
| Canada | 379 | 5% | 3.6% |
| India | 274 | 3.6% | 6.9% |
| Italy | 274 | 3.6% | 1.5% |
| Brazil | 219 | 2.9% | 2.8% |

## Which teams work with HEC-HMS?

Job posts for HEC-HMS point to water resources teams far more than any other, at 98 companies. Next come transportation teams (31 companies) and engineering teams (27).

| Team | Companies |
|---|---:|
| Water resources | 98 |
| Transportation | 31 |
| Engineering | 27 |
| Water | 22 |
| Water resources engineering | 18 |
| Civil engineering | 17 |

## Which roles mention HEC-HMS most?

HEC-HMS shows up across many roles. The top one, Water Resources Engineer, has 32% of the job posts. The top four roles cover 63% of these job posts.

| Role | Share | Oct 2025 to Aug 2026 | Mar to May 2026 | Jun to Aug 2026 |
|---|---:|---:|---:|---:|
| Water Resources Engineer | 32% | 1,046 | 273 | 309 |
| Civil Engineer | 20% | 641 | 181 | 148 |
| Hydrology Engineer | 5.8% | 189 | 63 | 42 |
| Skilled Trades | 5.3% | 174 | 41 | 58 |
| Structural Engineer | 4.7% | 154 | 38 | 40 |
| Program Manager | 4.2% | 138 | 43 | 32 |

## Which companies started naming HEC-HMS in job posts recently?

From April to August 2026, 61 companies with 50 or more employees posted their first job naming HEC-HMS: 37 commercial, 17 mid-market and 7 enterprise. Indovance Inc has the most job posts of the new commercial companies, 8 from April to August.

| Group | Company | Job posts, April to August 2026 |
|---|---|---:|
| Commercial | [Indovance Inc](https://sumble.com/orgs/indovance) | 8 |
| Commercial | [McFarland Johnson](https://sumble.com/orgs/mcfarland-johnson) | 5 |
| Commercial | [Civil Science](https://sumble.com/orgs/civil-science) | 5 |
| Commercial | [AAA Life Insurance Company](https://sumble.com/orgs/aaa-life-insurance) | 4 |
| Commercial | [IBTS - Institute for Building Technology and Safety](https://sumble.com/orgs/institute-for-building-technology-and-safety-ibts) | 4 |
| Mid-market | [Trilon](https://sumble.com/orgs/trilon-group) | 7 |
| Mid-market | [City of Colorado Springs](https://sumble.com/orgs/hyatt-house-colorado-springs-airport) | 4 |
| Mid-market | [Primoris Services Corporation](https://sumble.com/orgs/primoris-services) | 3 |
| Mid-market | [Pennoni](https://sumble.com/orgs/pennoni) | 3 |
| Mid-market | [INECO](https://sumble.com/orgs/ineco) | 2 |
| Enterprise | [Web Structures](https://sumble.com/orgs/web-structures) | 4 |
| Enterprise | [University of Arizona](https://sumble.com/orgs/university-of-arizona) | 2 |
| Enterprise | [SGS](https://sumble.com/orgs/sgs-1) | 1 |
| Enterprise | [Stanford University](https://sumble.com/orgs/stanford-university) | 1 |
| Enterprise | [PT Indofood Sukses Makmur Tbk](https://sumble.com/orgs/pt-indofood-sukses-makmur-tbk) | 1 |

Companies that named HEC-HMS 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 HEC-HMS companies use?

XPSWMM, FLO-2D and PondPack show up far more often at HEC-HMS companies than at companies of the same size. SRH-2D comes fourth, 174 times as common as usual, at 6.7%.

| Tool | Companies | Also name it | Typical | Times as common |
|---|---:|---:|---:|---:|
| XPSWMM | 151 | 13% | 0.07% | 190 times |
| FLO-2D | 101 | 8.9% | 0.05% | 187 times |
| PondPack | 82 | 7.2% | 0.04% | 181 times |
| SRH-2D | 77 | 6.7% | 0.04% | 174 times |
| StormCAD | 220 | 19% | 0.11% | 169 times |
| TR-55 | 74 | 6.5% | 0.04% | 164 times |
| SWMM | 493 | 43% | 0.27% | 161 times |
| HY-8 | 233 | 20% | 0.13% | 158 times |

Shares are out of the 1,141 companies whose job posts name HEC-HMS, 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.