# Companies using proliferation

855 companies in our data use proliferation, and 121 of them name it in job posts they wrote. Researcher is the role that names it most often.

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

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

The companies with the most job posts naming proliferation are University of Chicago (18), AstraZeneca (14) and Bristol Myers Squibb (8). Three of these five companies are in Manufacturing.

| Company | Job posts | People | Recent job post |
|---|---:|---:|---|
| [University of Chicago](https://sumble.com/orgs/university-of-chicago) | 18 | 0 | "…adhesion, migration, invasion, proliferation, apoptosis, cytotoxicity, Cancer stem cell isolation and culture…" (lab manager, Mar 5, 2025) |
| [AstraZeneca](https://sumble.com/orgs/astrazeneca) | 14 | 22 | "Hands-on expertise in T-cell functional characterization assays such as in vitro cytotoxicity, proliferation, cytokine measurement, and multi-parameter flow cytometry" (Senior Scientist - Drug Discovery (AI/ML), Oct 27, 2026) |
| [Bristol Myers Squibb](https://sumble.com/orgs/bristol-myers-squibb) | 8 | 11 | "Analytical methods for functional characterization of T cells (activation, cytotoxicity, cytokine secretion, proliferation etc.)" (Senior Associate Scientist (Genomic Characterization/Cell Therapy), Sep 28, 2025) |
| [UT MD Anderson](https://sumble.com/orgs/md-anderson-cancer-center) | 7 | 5 | "Perform various cell assays including mycoplasma testing, viability, proliferation, and differentiation assays." (Research Assistant II / Cancer Systems Imaging, May 2, 2025) |
| [Regeneron](https://sumble.com/orgs/regeneron) | 6 | 3 | "Perform analyses of hematopoietic cells using flow cytometry, proliferation, cytokine secretion (MSD, Luminex etc.), and cytotoxicity assays (Incucyte)." (Sr. Scientist, Stem Cell Engineering, Dec 14, 2023) |

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

8 companies named proliferation in a job post for the first time from June to August 2026, against 8 from March to May. Over the 11 months from October 2025, 21 companies posted their first job naming it.

| Period | Companies naming it in a job post for the first time |
|---|---:|
| March to May 2026 | 8 |
| June to August 2026 | 8 |
| October 2025 to August 2026 | 21 |

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 proliferation?

Employees' profiles account for 86% of the companies here. 121 companies name proliferation in job posts they wrote. 31 show up in both job posts and employees' profiles.

| How we know | Companies | Share |
|---|---:|---:|
| Job posts name proliferation | 121 | 14% |
| Employees' profiles list proliferation | 734 | 86% |

## What size are the companies that use proliferation?

38% of proliferation users are companies with 50 to 999 employees, the largest size group. The second-largest group is companies with more than 5,000 employees, at 27%.

| Size | Share | Typical tech page |
|---|---:|---:|
| Under 50 employees | 15% | 22% |
| 50 to 999 | 38% | 38% |
| 1,000 to 5,000 | 20% | 17% |
| Over 5,000 | 27% | 23% |

## Where are proliferation companies based?

The United States alone has 48% of proliferation companies; the rest are spread across 69 other countries and territories. India is less common than usual, at 3.4% against 6.9% on the typical tech page.

| Country | Companies | Share | Typical tech page |
|---|---:|---:|---:|
| United States | 395 | 48% | 43% |
| United Kingdom | 73 | 8.9% | 6.4% |
| Germany | 35 | 4.3% | 4.4% |
| India | 28 | 3.4% | 6.9% |
| Canada | 25 | 3% | 3.6% |
| Switzerland | 20 | 2.4% | 1.5% |

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

Between April and August 2026, proliferation appeared for the first time in job posts at 12 companies: 7 commercial, 2 mid-market and 3 enterprise.

| Group | Company | Job posts, April to August 2026 |
|---|---|---:|
| Commercial | [PPD™ CorEvitas™ Clinical Registries](https://sumble.com/orgs/corevitas) | 2 |
| Commercial | [Cellipont Bioservices](https://sumble.com/orgs/cellipont-bioservices) | 2 |
| Commercial | [Orca Bio](https://sumble.com/orgs/orca-bio) | 1 |
| Commercial | [Oklahoma Medical Research Foundation](https://sumble.com/orgs/oklahoma-medical-research-foundation) | 1 |
| Commercial | [ChemPartner](https://sumble.com/orgs/chempartner) | 1 |
| Enterprise | [Merck](https://sumble.com/orgs/merck) | 1 |
| Enterprise | [Mayo Clinic](https://sumble.com/orgs/mayo-clinic) | 1 |
| Enterprise | [The Ohio State University Wexner Medical Center](https://sumble.com/orgs/ohio-state-university-wexner-medical-center) | 1 |

Companies that named proliferation 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 proliferation companies use?

AlphaLISA, CE-SDS and Luminex show up far more often at proliferation companies than at companies of the same size. Among the tools listed here, SDS-PAGE is the most widely used, at 44% of proliferation companies.

| Tool | Companies | Also name it | Typical | Times as common |
|---|---:|---:|---:|---:|
| AlphaLISA | 12 | 17% | 0.05% | 318 times |
| CE-SDS | 13 | 19% | 0.12% | 160 times |
| Luminex | 24 | 34% | 0.28% | 123 times |
| ELISpot | 15 | 21% | 0.21% | 102 times |
| Medidata Rave | 15 | 21% | 0.23% | 92 times |
| SDS-PAGE | 31 | 44% | 0.58% | 76 times |
| Veeva Vault | 10 | 14% | 0.39% | 36 times |
| MAXQDA | 10 | 14% | 0.41% | 35 times |

Shares are out of the 70 companies whose job posts name proliferation, 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.