# Companies using GAMS

592 companies mention GAMS in job posts they wrote. Another 8,146 companies show up through employees' public profiles. Its share of job posts held steady in the three months to August 2026; 382 job posts named it from October 2025 to August 2026. It comes up most in Researcher job posts.

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

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

Aurora Energy Research, Ricardo and Markerstudy Group are among the companies with the most job posts naming GAMS. Of the five companies in the table, National Laboratory of the Rockies has the most employees who list it on their profiles: 27.

| Company | Job posts | People | Recent job post |
|---|---:|---:|---|
| [Aurora Energy Research](https://sumble.com/orgs/aurora-energy-research) | 125 | 26 | "It's a large Python codebase, with optimisation components written in GAMS and solved with MOSEK, running in Docker containers on AWS." (Junior Modelling Software Engineer, Nov 1, 2026) |
| [Ricardo](https://sumble.com/orgs/ricardo-plc) | 78 | 3 | "Demonstrated data management skills, including the ability to work with large datasets and use programming tools, preferably GAMS or Python or R for modelling." (energy market analysts/modellers, Apr 30, 2026) |
| [Markerstudy Group](https://sumble.com/orgs/markerstudy-insurance-services) | 66 | 0 | "Logistic Regression, GBMs, Elastic Net GLMs, GAMs, Decision Trees, Random Forests, Neural Nets and Clustering" (Machine Learning Engineer, Aug 25, 2026) |
| [National Laboratory of the Rockies](https://sumble.com/orgs/national-renewable-energy-laboratory) | 61 | 27 | "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) |
| [Ageas UK](https://sumble.com/orgs/ageasuk) | 43 | 0 | "Logistic Regression, Log-Gamma GLMs, GBMs, Elastic Net GLMs, GAMs, Decision Trees, Random Forests, Support Vector Machines and Neural Nets." (Senior Market Pricing Analyst, Jun 2, 2026) |

## Is hiring for GAMS growing?

GAMS's share of job posts is about the same as three months earlier: 0.20 in every 10,000 job posts from June to August 2026, against 0.20 from March to May.

| Month | Job posts naming it | All job posts | Per 10,000 job posts |
|---|---:|---:|---:|
| Oct 2025 | 28 | 1,413,673 | 0.20 |
| Nov 2025 | 43 | 1,822,119 | 0.24 |
| Dec 2025 | 27 | 1,236,103 | 0.22 |
| Jan 2026 | 31 | 1,828,002 | 0.17 |
| Feb 2026 | 35 | 1,856,647 | 0.19 |
| Mar 2026 | 45 | 1,850,711 | 0.24 |
| Apr 2026 | 34 | 1,728,886 | 0.20 |
| May 2026 | 29 | 1,821,509 | 0.16 |
| Jun 2026 | 55 | 1,909,496 | 0.29 |
| Jul 2026 | 22 | 1,815,180 | 0.12 |
| Aug 2026 | 33 | 1,835,698 | 0.18 |

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

In the three months to August 2026, 20 companies posted about GAMS for the first time. From March to May, 17 did. Over the 11 months from October 2025, 71 companies posted their first job naming it.

| Period | Companies naming it in a job post for the first time |
|---|---:|
| March to May 2026 | 17 |
| June to August 2026 | 20 |
| October 2025 to August 2026 | 71 |

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 GAMS?

Employees' profiles account for 93% of the companies here. 592 companies name GAMS in job posts they wrote. 308 show up in both job posts and employees' profiles.

| How we know | Companies | Share |
|---|---:|---:|
| Job posts name GAMS | 592 | 6.8% |
| Employees' profiles list GAMS | 8,146 | 93% |

## What size are the companies that use GAMS?

32% of GAMS users are companies with 50 to 999 employees, and companies with 1,000 to 5,000 employees make up 21%, a high share for a tech page. 97 of its companies have fewer than 50 employees. These counts cover the 592 companies whose job posts name it.

| Size | Share | Typical tech page |
|---|---:|---:|
| Under 50 employees | 16% | 26% |
| 50 to 999 | 32% | 37% |
| 1,000 to 5,000 | 21% | 15% |
| Over 5,000 | 30% | 22% |

## Where are GAMS companies based?

GAMS has an unusually large following in Denmark: 3% of its companies, against 0.54% on the typical tech page. Its companies are based in 46 countries and territories. These shares cover the 592 companies whose job posts name it.

| Country | Companies | Share | Typical tech page |
|---|---:|---:|---:|
| United States | 188 | 33% | 48% |
| Germany | 74 | 13% | 4.4% |
| United Kingdom | 51 | 9.1% | 6.3% |
| France | 26 | 4.6% | 5% |
| Denmark | 17 | 3% | 0.54% |
| Canada | 15 | 2.7% | 3.8% |

## Which teams work with GAMS?

Data science is the team named most often in GAMS job posts, at 6 companies.

| Team | Companies |
|---|---:|
| Data science | 6 |
| Advanced analytics | 5 |
| Analytics | 5 |
| Energy analytics | 5 |
| Modelling | 5 |
| Se | 5 |

## Which roles mention GAMS most?

Researcher and Analyst roles account for 23% of the job posts that name GAMS. Researcher posts naming it numbered 10 from March to May 2026 and 18 from June to August.

| Role | Share | Oct 2025 to Aug 2026 | Mar to May 2026 | Jun to Aug 2026 |
|---|---:|---:|---:|---:|
| Researcher | 15% | 58 | 10 | 18 |
| Analyst | 7.3% | 28 | 7 | 12 |
| Data Scientist | 7.1% | 27 | 8 | 6 |
| Systems Engineer | 5.2% | 20 | 4 | 5 |
| Market Research | 3.9% | 15 | 3 | 3 |
| Pricing Analyst | 3.9% | 15 | 5 | 4 |

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

Between April and August 2026, GAMS appeared for the first time in job posts at 29 companies: 10 commercial, 9 mid-market and 10 enterprise. Among the new enterprise companies, WSP posted the most jobs naming it: 7.

| Group | Company | Job posts, April to August 2026 |
|---|---|---:|
| Commercial | [Teledyne Brown Engineering](https://sumble.com/orgs/teledynebrown) | 2 |
| Commercial | [Zuse Institute Berlin](https://sumble.com/orgs/zuse-institute-berlin) | 2 |
| Commercial | [Athena - Research and Education Institute](https://sumble.com/orgs/athena-institute) | 2 |
| Commercial | [Natural Resources Institute Finland / Luonnonvarakeskus](https://sumble.com/orgs/luonnonvarakeskus) | 1 |
| Commercial | [Infrastructure and Energy Alternatives, Inc. (IEA), a MasTec Company](https://sumble.com/orgs/iea-infrastructure-and-energy-alternatives) | 1 |
| Mid-market | [University of Luxembourg](https://sumble.com/orgs/universite-du-luxembourg) | 2 |
| Mid-market | [ESB](https://sumble.com/orgs/electricity-supply-board-esb) | 1 |
| Mid-market | [Stockholm University](https://sumble.com/orgs/stockholms-universitet) | 1 |
| Mid-market | [PPC S.A.](https://sumble.com/orgs/ppc-s.a.) | 1 |
| Mid-market | [Leibniz Universität Hannover](https://sumble.com/orgs/leibniz-universitat-hannover) | 1 |
| Enterprise | [WSP](https://sumble.com/orgs/wsp) | 7 |
| Enterprise | [Omnicom Media](https://sumble.com/orgs/omnicom-media-group) | 2 |
| Enterprise | [Valmet](https://sumble.com/orgs/valmet) | 2 |
| Enterprise | [Vrije Universiteit Amsterdam (VU Amsterdam)](https://sumble.com/orgs/vrije-universiteit-amsterdam) | 2 |
| Enterprise | [NTT DATA Europe & Latam](https://sumble.com/orgs/ntt-data-europe-latam) | 1 |

Companies that named GAMS 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 GAMS companies use?

Compared with companies of the same size, GAMS companies stand out for using AMPL and Pyomo. Among the tools listed here, Gurobi is the most widely used, at 22% of GAMS companies.

| Tool | Companies | Also name it | Typical | Times as common |
|---|---:|---:|---:|---:|
| AMPL | 58 | 15% | 0.12% | 122 times |
| Pyomo | 65 | 17% | 0.3% | 55 times |
| AIMMS | 21 | 5.3% | 0.16% | 34 times |
| PLEXOS | 44 | 11% | 0.35% | 32 times |
| Modelica | 33 | 8.4% | 0.3% | 28 times |
| IBM CPLEX | 82 | 21% | 0.76% | 27 times |
| PowerWorld | 21 | 5.3% | 0.22% | 25 times |
| Gurobi | 87 | 22% | 0.97% | 23 times |

Shares are out of the 393 companies whose job posts name GAMS, not counting firms whose job posts name almost every technology.

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

Setting aside broad digital transformation, Cloud Migration is the theme teams hiring for GAMS mention most, in 12 job posts. After that comes Data Infrastructure Migration, with 9.

| Project theme | Job posts |
|---|---:|
| Digital Transformation | 83 |
| Cloud Migration | 12 |
| Data Infrastructure Migration | 9 |
| Cloud Cost Optimization | 8 |

- "migrar progressivamente uma base de código Python madura (GAMS com MOSEK como solver de otimização) para uma arquitetura moderna e bem delimitada" (Aurora Energy Research, Senior tech lead, software engineering (energy modeling), Oct 23, 2026)

## 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.