# Companies using HY-8

1,291 companies in our data use HY-8, and 443 of them name it in job posts they wrote. Hiring for it is steady, with 841 job posts naming it from October 2025 to August 2026. It comes up most in Water Resources Engineer job posts.

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

## Which companies name HY-8 in the most job posts?

Among the companies with the most job posts naming HY-8 are AECOM (325), Fishbeck (189) and Jacobs (162). Of the five companies in the table, AECOM has the most employees who list it on their profiles: 57.

| Company | Job posts | People | Recent job post |
|---|---:|---:|---|
| [AECOM](https://sumble.com/orgs/aecom) | 325 | 57 | "Experience in the following software: Microstation, GEOPAK, OpenRoads, StormCad or other equivalent CAD software, HY-8, ICPR, HEC-RAS and MS Office." (Transportation Drainage Engineer, Nov 7, 2026) |
| [Fishbeck](https://sumble.com/orgs/fishbeck) | 189 | 4 | "Knowledge of HEC-RAS, HY-8, and StormCAD is preferred." (Senior Transportation Engineer, Sep 17, 2026) |
| [Jacobs](https://sumble.com/orgs/jacobs) | 162 | 30 | "Demonstrated expertise with H&H modeling software including HEC-RAS, HEC-HMS, SWMM/PCSWMM, HY8, and HydroCAD" (Senior Water Resources Engineer - Federal, Oct 22, 2026) |
| [WSP](https://sumble.com/orgs/wsp) | 160 | 46 | "HEC-RAS, HY-8, DHI MIKE and similar" (Assistant Engineer - Water Resources Engineering, Oct 21, 2026) |
| [Arcadis](https://sumble.com/orgs/arcadis) | 147 | 17 | "Familiarity with industry-standard design and modeling tools (HEC-RAS, HY-8, StormCAD, MicroStation, AutoCAD Civil 3D, OpenRoads, GIS) with a willingness to learn and adapt" (stormwater engineer, Aug 19, 2026) |

## Is hiring for HY-8 growing?

Demand for HY-8 is steady: 0.41 in every 10,000 job posts from June to August 2026, close to the 0.44 of March to May. Its busiest month was February 2026, at 0.55.

| Month | Job posts naming it | All job posts | Per 10,000 job posts |
|---|---:|---:|---:|
| Oct 2025 | 54 | 1,413,673 | 0.38 |
| Nov 2025 | 84 | 1,822,119 | 0.46 |
| Dec 2025 | 53 | 1,236,103 | 0.43 |
| Jan 2026 | 82 | 1,828,002 | 0.45 |
| Feb 2026 | 102 | 1,856,647 | 0.55 |
| Mar 2026 | 82 | 1,850,711 | 0.44 |
| Apr 2026 | 77 | 1,728,886 | 0.45 |
| May 2026 | 78 | 1,821,509 | 0.43 |
| Jun 2026 | 82 | 1,909,496 | 0.43 |
| Jul 2026 | 74 | 1,815,180 | 0.41 |
| Aug 2026 | 73 | 1,835,698 | 0.40 |

## How many companies named HY-8 in a job post for the first time in recent months?

From June to August 2026, 16 companies posted their first job naming HY-8; 10 did from March to May. Of the 443 companies whose job posts name it, 3.6% first named it from June to August.

| Period | Companies naming it in a job post for the first time |
|---|---:|
| March to May 2026 | 10 |
| June to August 2026 | 16 |
| October 2025 to August 2026 | 47 |

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 HY-8?

443 companies name HY-8 in their own job posts. The other 848 show up because employees list it on their profiles. 186 show up in both job posts and employees' profiles.

| How we know | Companies | Share |
|---|---:|---:|
| Job posts name HY-8 | 443 | 34% |
| Employees' profiles list HY-8 | 848 | 66% |

## What size are the companies that use HY-8?

HY-8 skews toward companies with 50 to 999 employees: 49% of its users, against 38% on the typical tech page. The second-largest group is companies with fewer than 50 employees, at 21%.

| Size | Share | Typical tech page |
|---|---:|---:|
| Under 50 employees | 21% | 22% |
| 50 to 999 | 49% | 38% |
| 1,000 to 5,000 | 18% | 17% |
| Over 5,000 | 12% | 23% |

## Where are HY-8 companies based?

More than half of HY-8 companies are in the United States (70%). Its companies are based in 60 countries and territories.

| Country | Companies | Share | Typical tech page |
|---|---:|---:|---:|
| United States | 861 | 70% | 43% |
| Canada | 69 | 5.6% | 3.6% |
| Spain | 41 | 3.3% | 1.8% |
| Australia | 23 | 1.9% | 2.2% |
| United Kingdom | 19 | 1.5% | 6.4% |
| France | 15 | 1.2% | 4.6% |

## Which teams work with HY-8?

Job posts most often place HY-8 with water resources, transportation and drainage teams. Next are transportation design and civil engineering teams, at 7 and 6 companies.

| Team | Companies |
|---|---:|
| Water resources | 38 |
| Transportation | 34 |
| Drainage | 8 |
| Transportation design | 7 |
| Civil engineering | 6 |
| Design | 5 |

## Which roles mention HY-8 most?

Water Resources Engineer roles make up 44% of the job posts that name HY-8. The top four roles cover 70% of these job posts.

| Role | Share | Oct 2025 to Aug 2026 | Mar to May 2026 | Jun to Aug 2026 |
|---|---:|---:|---:|---:|
| Water Resources Engineer | 44% | 370 | 108 | 112 |
| Civil Engineer | 13% | 112 | 26 | 26 |
| Traffic Engineer | 6.9% | 58 | 17 | 12 |
| Hydrology Engineer | 5.9% | 50 | 16 | 9 |
| Skilled Trades | 5% | 42 | 8 | 10 |
| Program Manager | 4% | 34 | 11 | 8 |

## Which companies started naming HY-8 in job posts recently?

Between April and August 2026, HY-8 appeared for the first time in job posts at 16 companies: 9 commercial, 3 mid-market and 4 enterprise. McFarland Johnson leads the new commercial companies, with 5 job posts from April to August.

| Group | Company | Job posts, April to August 2026 |
|---|---|---:|
| Commercial | [McFarland Johnson](https://sumble.com/orgs/mcfarland-johnson) | 5 |
| Commercial | [Waggoner Engineering](https://sumble.com/orgs/waggoner-engineering) | 4 |
| Commercial | [Kapur & Associates](https://sumble.com/orgs/kapur-&-associates) | 2 |
| Commercial | [American Engineering](https://sumble.com/orgs/american-engineering) | 2 |
| Commercial | [Bilfinger Middle East](https://sumble.com/orgs/bilfinger-middle-east) | 1 |
| Mid-market | [Grupo Ortiz](https://sumble.com/orgs/grupo-ortiz) | 2 |
| Mid-market | [Bane NOR](https://sumble.com/orgs/bane-nor) | 1 |
| Mid-market | [Jefferson County, Colorado](https://sumble.com/orgs/jefferson-county-colorado) | 1 |
| Enterprise | [Southern Company](https://sumble.com/orgs/southern) | 2 |
| Enterprise | [COWI](https://sumble.com/orgs/cowi) | 2 |
| Enterprise | [Larsen & Toubro](https://sumble.com/orgs/larsen-and-toubro-l&t) | 1 |
| Enterprise | [Los Alamos National Laboratory](https://sumble.com/orgs/los-alamos-national-laboratory) | 1 |

Companies that named HY-8 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 HY-8 companies use?

TR-20 and TR-55 are the tools most closely tied to HY-8. Next is SRH-2D: 15% of these companies use it, against 0.05% of similar ones.

| Tool | Companies | Also name it | Typical | Times as common |
|---|---:|---:|---:|---:|
| TR-20 | 48 | 14% | 0.03% | 448 times |
| TR-55 | 58 | 16% | 0.05% | 350 times |
| SRH-2D | 53 | 15% | 0.05% | 316 times |
| CulvertMaster | 38 | 11% | 0.04% | 272 times |
| Geopak | 154 | 43% | 0.16% | 270 times |
| StormCAD | 123 | 35% | 0.14% | 255 times |
| PondPack | 43 | 12% | 0.05% | 254 times |
| AASHTOWare BrR | 36 | 10% | 0.04% | 252 times |

Shares are out of the 355 companies whose job posts name HY-8, 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.