# Companies using Pyomo

1,422 companies in our data use Pyomo, and 584 of them name it in job posts they wrote. Hiring for it is steady, with 474 job posts naming it from October 2025 to August 2026. Data Scientist roles mention it most.

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

## Which companies name Pyomo in the most job posts?

National Laboratory of the Rockies, Accenture and Kenvue mention Pyomo in the most job posts. ExxonMobil is the newest of the five companies in the table, with its first job post naming it in June 2024.

| Company | Job posts | People | Recent job post |
|---|---:|---:|---|
| [National Laboratory of the Rockies](https://sumble.com/orgs/national-renewable-energy-laboratory) | 37 | 6 | "Experience in at least one of the optimization solvers and platforms such as CPLEX, CVXPY, Pyomo, GAMS" (Graduate Internship - Power Grid Operation & Optimization (3-12 months), Oct 22, 2026) |
| [Accenture](https://sumble.com/orgs/accenture) | 35 | 4 | "Knowledge of Optimization techniques and packages such as Pyomo, SciPy, PuLP, Gurobi, CPLEX or similar" (Sales Excellence - COE - Advanced Modeling Manager, Dec 2, 2025) |
| [Kenvue](https://sumble.com/orgs/kenvue) | 33 | 2 | "Strong programming skills in languages such as Python with experience in optimization libraries (e.g., Gurobi, FICO, Pyomo, Streamlit) and data manipulation tools (e.g., pandas, NumPy)." (Analyst, Data Science, Dec 2, 2025) |
| [Lawrence Livermore National Laboratory](https://sumble.com/orgs/lawrence-livermore-national-laboratory) | 22 | 1 | "Fundamental knowledge of at least one open-source algebraic modeling language (e.g., Pyomo, JuMP) for mathematical optimization." (Operations Research Postdoctoral Researcher, Apr 1, 2026) |
| [ExxonMobil](https://sumble.com/orgs/exxonmobil) | 21 | 4 | "Competent in developing mathematical optimization models using mathematical modeling languages such as AIMMS, GAMS, AMPL, Pyomo, Gurobipy, etc." (Operations Research Engineer - Advanced, Jul 14, 2026) |

## Is hiring for Pyomo growing?

Hiring for Pyomo barely changed, at 0.24 in every 10,000 job posts from June to August 2026 against 0.22 from March to May. From October to December 2025 it was 0.29.

| Month | Job posts naming it | All job posts | Per 10,000 job posts |
|---|---:|---:|---:|
| Oct 2025 | 43 | 1,413,673 | 0.30 |
| Nov 2025 | 45 | 1,822,119 | 0.25 |
| Dec 2025 | 40 | 1,236,103 | 0.32 |
| Jan 2026 | 54 | 1,828,002 | 0.30 |
| Feb 2026 | 42 | 1,856,647 | 0.23 |
| Mar 2026 | 35 | 1,850,711 | 0.19 |
| Apr 2026 | 44 | 1,728,886 | 0.25 |
| May 2026 | 39 | 1,821,509 | 0.21 |
| Jun 2026 | 45 | 1,909,496 | 0.24 |
| Jul 2026 | 37 | 1,815,180 | 0.20 |
| Aug 2026 | 50 | 1,835,698 | 0.27 |

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

From June to August 2026, 59 companies posted their first job naming Pyomo; 38 did from March to May. That brings the companies naming it for the first time since October 2025 to 181, through August 2026.

| Period | Companies naming it in a job post for the first time |
|---|---:|
| March to May 2026 | 38 |
| June to August 2026 | 59 |
| October 2025 to August 2026 | 181 |

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 Pyomo?

584 of the 1,422 companies name Pyomo in their own job posts. The other 838 show up because employees list it on their profiles. 130 show up in both job posts and employees' profiles.

| How we know | Companies | Share |
|---|---:|---:|
| Job posts name Pyomo | 584 | 41% |
| Employees' profiles list Pyomo | 838 | 59% |

## What size are the companies that use Pyomo?

Companies with more than 5,000 employees are 1.4 times as common among Pyomo users as on the typical tech page, at 31%. 232 of its companies have fewer than 50 employees.

| Size | Share | Typical tech page |
|---|---:|---:|
| Under 50 employees | 16% | 22% |
| 50 to 999 | 32% | 38% |
| 1,000 to 5,000 | 20% | 17% |
| Over 5,000 | 31% | 23% |

## Where are Pyomo companies based?

Spain is 2.2 times as common among Pyomo companies as on the typical tech page, at 3.9%. The United States leads overall with 38%. Germany is second, at 9%.

| Country | Companies | Share | Typical tech page |
|---|---:|---:|---:|
| United States | 516 | 38% | 43% |
| Germany | 124 | 9% | 4.4% |
| United Kingdom | 78 | 5.7% | 6.4% |
| India | 71 | 5.2% | 6.9% |
| Spain | 54 | 3.9% | 1.8% |
| Canada | 53 | 3.9% | 3.6% |

## Which teams work with Pyomo?

Job posts for Pyomo point to data science teams far more than any other, at 18 companies.

| Team | Companies |
|---|---:|
| Data science | 18 |
| R&D | 7 |
| COE | 6 |
| COE analytics modeling analysis | 6 |
| Data engineering | 4 |
| Decision science | 4 |

## Which roles mention Pyomo most?

Data Scientist is the most common role, in 26% of job posts naming Pyomo. The top four roles cover 47% of these job posts.

| Role | Share | Oct 2025 to Aug 2026 | Mar to May 2026 | Jun to Aug 2026 |
|---|---:|---:|---:|---:|
| Data Scientist | 26% | 121 | 27 | 26 |
| Researcher | 8.9% | 42 | 14 | 14 |
| Software Engineer | 6.3% | 30 | 9 | 7 |
| AI Engineer | 5.9% | 28 | 2 | 12 |
| Systems Engineer | 5.1% | 24 | 2 | 5 |
| Industrial Engineer | 4.2% | 20 | 5 | 10 |

## Which companies started naming Pyomo in job posts recently?

Between April and August 2026, 72 companies with 50 or more employees first named Pyomo in a job post, 28 of them with more than 5,000 employees. Carrier leads the new enterprise companies, with 8 job posts from April to August.

| Group | Company | Job posts, April to August 2026 |
|---|---|---:|
| Commercial | [SysMap Solutions](https://sumble.com/orgs/sysmap-solutions) | 3 |
| Commercial | [Scale](https://sumble.com/orgs/scale-microgrids) | 3 |
| Commercial | [Qaracter - Beyond your Challenge](https://sumble.com/orgs/qaracter-mexico) | 2 |
| Commercial | [Teledyne Brown Engineering](https://sumble.com/orgs/teledynebrown) | 2 |
| Commercial | [QpiAI](https://sumble.com/orgs/qpiai) | 2 |
| Mid-market | [CSIRO](https://sumble.com/orgs/csiro) | 2 |
| Mid-market | [Test Yantra](https://sumble.com/orgs/test-yantra-software-solutions-private-limited) | 2 |
| Mid-market | [Lightsource bp](https://sumble.com/orgs/lightsource-bp) | 2 |
| Mid-market | [Opella](https://sumble.com/orgs/opella-health) | 1 |
| Mid-market | [IBS Software](https://sumble.com/orgs/ibs-software-services) | 1 |
| Enterprise | [Carrier](https://sumble.com/orgs/carrier) | 8 |
| Enterprise | [Astellas Pharma](https://sumble.com/orgs/astellas-pharmaceuticals) | 7 |
| Enterprise | [Ciena](https://sumble.com/orgs/ciena) | 4 |
| Enterprise | [DNV](https://sumble.com/orgs/dnv) | 3 |
| Enterprise | [LC Waikiki](https://sumble.com/orgs/lc-waikiki) | 3 |

Companies that named Pyomo 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 Pyomo companies use?

AMPL, IBM CPLEX and Gurobi show up far more often at Pyomo companies than at companies of the same size. GAMS is 55 times as common as usual, at 19%.

| Tool | Companies | Also name it | Typical | Times as common |
|---|---:|---:|---:|---:|
| AMPL | 33 | 9.4% | 0.1% | 92 times |
| IBM CPLEX | 165 | 47% | 0.64% | 73 times |
| Gurobi | 203 | 58% | 0.83% | 70 times |
| GAMS | 65 | 19% | 0.34% | 55 times |
| PSLF | 18 | 5.1% | 0.13% | 40 times |
| PowerWorld | 18 | 5.1% | 0.18% | 28 times |
| Modelica | 22 | 6.3% | 0.26% | 25 times |
| PLEXOS | 25 | 7.1% | 0.29% | 24 times |

Shares are out of the 351 companies whose job posts name Pyomo, not counting firms whose job posts name almost every technology.

## Which project themes come up in Pyomo job posts?

Beyond general digital transformation, the most common project theme in Pyomo job posts is Generative AI (15 posts). Microservices Migration is next, in 12 job posts.

| Project theme | Job posts |
|---|---:|
| Digital Transformation | 119 |
| Generative AI | 15 |
| Microservices Migration | 12 |
| Data Infrastructure Migration | 9 |

## 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.