# Companies using Foundation Fieldbus

We found 3,331 companies that use Foundation Fieldbus. 437 of them name it in their own job posts, and the rest through employees' public profiles. From October 2025 to August 2026, 483 job posts named it. It comes up most in Control Engineer job posts.

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

## Which companies name Foundation Fieldbus in the most job posts?

Emerson and Honeywell Technologies have the most job posts naming Foundation Fieldbus, with 163 and 142. Of the five companies in the table, Emerson has the most employees who list it on their profiles: 387.

| Company | Job posts | People | Recent job post |
|---|---:|---:|---|
| [Emerson](https://sumble.com/orgs/emerson) | 163 | 387 | "Hands on experience of Foundation fieldbus and basic knowledge of Profibus PA preferred." (Engineer - Technical Support, Nov 7, 2026) |
| [Honeywell Technologies](https://sumble.com/orgs/honeywell) | 142 | 369 | "Familiarity with industrial communication protocols such as Modbus, Ethernet/IP, HART, Foundation Fieldbus, Profibus, OPC, or TCP/IP." (Field Service Engr I - Process Controls- Midland, Odessa, Dallas, Sep 26, 2026) |
| [Wood](https://sumble.com/orgs/wood) | 90 | 76 | "Verify instrument communication protocols such as HART, Modbus, Foundation Fieldbus, and Profibus." (Instrument Engineer (Pre Commissioning Field), Nov 4, 2026) |
| [Flowserve Corporation](https://sumble.com/orgs/flowserve) | 76 | 6 | "Knowledge of industrial communication protocols , including HART, Foundation Fieldbus, PROFIBUS, Modbus, and OPC." (Software Design Engineer - LabVIEW, Nov 1, 2026) |
| [Wunderlich-Malec Engineering, Inc.](https://sumble.com/orgs/wunderlich-malec) | 75 | 5 | "Proficient in automation protocols such as HART, Foundation Fieldbus, Traditional I/O, Profibus, Ethernet I/P, OPC, Modbus TCP/IP" (controls engineer, Oct 24, 2026) |

## Is hiring for Foundation Fieldbus growing?

0.32 in every 10,000 job posts named Foundation Fieldbus from June to August 2026, against 0.24 from March to May. These are small numbers of job posts, so a few companies can move them.

| Month | Job posts naming it | All job posts | Per 10,000 job posts |
|---|---:|---:|---:|
| Oct 2025 | 26 | 1,413,673 | 0.18 |
| Nov 2025 | 38 | 1,822,119 | 0.21 |
| Dec 2025 | 36 | 1,236,103 | 0.29 |
| Jan 2026 | 41 | 1,828,002 | 0.22 |
| Feb 2026 | 34 | 1,856,647 | 0.18 |
| Mar 2026 | 49 | 1,850,711 | 0.26 |
| Apr 2026 | 38 | 1,728,886 | 0.22 |
| May 2026 | 42 | 1,821,509 | 0.23 |
| Jun 2026 | 55 | 1,909,496 | 0.29 |
| Jul 2026 | 59 | 1,815,180 | 0.33 |
| Aug 2026 | 65 | 1,835,698 | 0.35 |

## How many companies named Foundation Fieldbus in a job post for the first time in recent months?

In the three months to August 2026, 42 companies posted about Foundation Fieldbus for the first time. From March to May, 26 did. The 42 from June to August are 9.6% of all 437 companies whose job posts name it.

| Period | Companies naming it in a job post for the first time |
|---|---:|
| March to May 2026 | 26 |
| June to August 2026 | 42 |
| October 2025 to August 2026 | 96 |

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 Foundation Fieldbus?

87% of the companies here are known from employees' profiles alone, and 13% name Foundation Fieldbus in their own job posts. 167 show up in both job posts and employees' profiles.

| How we know | Companies | Share |
|---|---:|---:|
| Job posts name Foundation Fieldbus | 437 | 13% |
| Employees' profiles list Foundation Fieldbus | 2,894 | 87% |

## What size are the companies that use Foundation Fieldbus?

44% of Foundation Fieldbus users are companies with 50 to 999 employees, the largest size group. 539 of its companies have fewer than 50 employees.

| Size | Share | Typical tech page |
|---|---:|---:|
| Under 50 employees | 16% | 22% |
| 50 to 999 | 44% | 38% |
| 1,000 to 5,000 | 21% | 17% |
| Over 5,000 | 19% | 23% |

## Where are Foundation Fieldbus companies based?

Foundation Fieldbus has an unusually large following in Brazil: 5.8% of its companies, against 2.8% on the typical tech page. Its companies are based in 103 countries and territories.

| Country | Companies | Share | Typical tech page |
|---|---:|---:|---:|
| United States | 912 | 29% | 43% |
| India | 278 | 8.8% | 6.9% |
| Canada | 199 | 6.3% | 3.6% |
| Brazil | 184 | 5.8% | 2.8% |
| United Kingdom | 170 | 5.4% | 6.4% |
| Australia | 147 | 4.6% | 2.2% |

## Which teams work with Foundation Fieldbus?

Foundation Fieldbus work is spread across teams. Engineering leads, at 9 companies.

| Team | Companies |
|---|---:|
| Engineering | 9 |
| Automation | 5 |
| ATA plant automation | 4 |
| Maintenance | 4 |
| Plant automation | 4 |
| Project management | 4 |

## Which roles mention Foundation Fieldbus most?

Foundation Fieldbus shows up across many roles. The top one, Control Engineer, has 22% of the job posts. The top four roles cover 55% of these job posts.

| Role | Share | Oct 2025 to Aug 2026 | Mar to May 2026 | Jun to Aug 2026 |
|---|---:|---:|---:|---:|
| Control Engineer | 22% | 108 | 35 | 21 |
| Skilled Trades | 16% | 75 | 28 | 20 |
| Systems Engineer | 10% | 50 | 6 | 25 |
| Automation Engineer | 6.4% | 31 | 7 | 7 |
| Engineer | 6% | 29 | 9 | 10 |
| Customer Engineer | 4.8% | 23 | 3 | 11 |

## Which companies started naming Foundation Fieldbus in job posts recently?

41 companies with 50 or more employees started naming Foundation Fieldbus in job posts between April and August 2026. 10 of them have more than 5,000 employees. Among the new enterprise companies, WSP in Canada posted the most jobs naming it: 3.

| Group | Company | Job posts, April to August 2026 |
|---|---|---:|
| Commercial | [NECI](https://sumble.com/orgs/neci) | 2 |
| Commercial | [Valar Atomics](https://sumble.com/orgs/valar-atomics) | 2 |
| Commercial | [Blykalla](https://sumble.com/orgs/blykalla) | 2 |
| Commercial | [Advanced Manufacturing Tech Solutions](https://sumble.com/orgs/advanced-manufacturing-tech-solutions) | 2 |
| Commercial | [Tallgrass](https://sumble.com/orgs/tallgrass-energy) | 1 |
| Mid-market | [Acwa](https://sumble.com/orgs/acwa-power-global-services) | 3 |
| Mid-market | [Perenco](https://sumble.com/orgs/perenco) | 2 |
| Mid-market | [Atvos](https://sumble.com/orgs/atvos) | 1 |
| Mid-market | [Sylvamo](https://sumble.com/orgs/sylvamo) | 1 |
| Mid-market | [GAF](https://sumble.com/orgs/gaf-2) | 1 |
| Enterprise | [WSP in Canada](https://sumble.com/orgs/wsp-in-canada) | 3 |
| Enterprise | [Unilever](https://sumble.com/orgs/unilever) | 2 |
| Enterprise | [Vale](https://sumble.com/orgs/vale) | 2 |
| Enterprise | [Tech Mahindra](https://sumble.com/orgs/tech-mahindra) | 1 |
| Enterprise | [Pfizer](https://sumble.com/orgs/pfizer) | 1 |

Companies that named Foundation Fieldbus 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 Foundation Fieldbus companies use?

Foundation Fieldbus companies are 124 times as likely as similar companies to use Syncade: 8.8% of them, against 0.07%. Among the tools listed here, HART is the most widely used, at 65% of Foundation Fieldbus companies.

| Tool | Companies | Also name it | Typical | Times as common |
|---|---:|---:|---:|---:|
| Syncade | 23 | 8.8% | 0.07% | 124 times |
| HART | 168 | 65% | 0.65% | 100 times |
| Triconex | 23 | 8.8% | 0.11% | 79 times |
| PlantPAx | 18 | 6.9% | 0.1% | 67 times |
| PAS-X | 18 | 6.9% | 0.12% | 58 times |
| DeltaV | 122 | 47% | 0.88% | 53 times |
| Foxboro | 26 | 10% | 0.21% | 48 times |
| Yokogawa | 49 | 19% | 0.4% | 47 times |

Shares are out of the 260 companies whose job posts name Foundation Fieldbus, 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.