# Companies using LISP

834 companies name LISP in their own job posts. Its share of job posts held steady in the three months to August 2026; 473 job posts named it from October 2025 to August 2026. Network Engineer roles mention it most.

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

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

Among the companies with the most job posts naming LISP are Cisco (148), Arcadis (54) and Micron Technology (44). Altran is the newest of the five companies in the table, with its first job post naming it in July 2024.

| Company | Job posts | People | Recent job post |
|---|---:|---:|---|
| [Cisco](https://sumble.com/orgs/cisco-systems) | 148 | 74 | "Drive the design and deployment of secure, automated campus fabrics (LISP, VXLAN, Cisco ISE / TrustSec SGT integration, Anycast Gateways) and software-defined WAN architectures…" (Consulting Engineer, Nov 1, 2026) |
| [Arcadis](https://sumble.com/orgs/arcadis) | 54 | 1 | "Contribute to technical improvements, automation (scripting, LISP, VBA, .NET, Dynamo), and adoption of new technologies." (Senior BIM Modeller - Highway Design, May 12, 2026) |
| [Micron Technology](https://sumble.com/orgs/micron-technology) | 44 | 1 | "Strong programming fundamentals with experience in one or more languages such as Python, C, C++, Perl, Lisp, SKILL, or Visual Basic" (Staff CAD Engineer, Oct 23, 2026) |
| [Tata Consultancy Services](https://sumble.com/orgs/tata-consultancy-services-tcs) | 38 | 25 | "IP Routing: BGP, MP-BGP, OSPF, MPLS, LISP" (we are a network, Sep 12, 2026) |
| [Altran](https://sumble.com/orgs/capgemini-engineering) | 30 | 7 | "Support advanced networking technologies including LISP, Multicast, VRF-Lite, VXLAN, CTS, 802.1X, and Spanning Tree." (Senior Network Consultant, Aug 7, 2026) |

## Is hiring for LISP growing?

LISP holds a steady place in hiring. 0.24 in every 10,000 job posts named it from June to August 2026, against 0.26 from March to May. From October to December 2025 it was 0.21.

| Month | Job posts naming it | All job posts | Per 10,000 job posts |
|---|---:|---:|---:|
| Oct 2025 | 31 | 1,413,673 | 0.22 |
| Nov 2025 | 39 | 1,822,119 | 0.21 |
| Dec 2025 | 25 | 1,236,103 | 0.20 |
| Jan 2026 | 53 | 1,828,002 | 0.29 |
| Feb 2026 | 51 | 1,856,647 | 0.27 |
| Mar 2026 | 51 | 1,850,711 | 0.28 |
| Apr 2026 | 36 | 1,728,886 | 0.21 |
| May 2026 | 53 | 1,821,509 | 0.29 |
| Jun 2026 | 32 | 1,909,496 | 0.17 |
| Jul 2026 | 48 | 1,815,180 | 0.26 |
| Aug 2026 | 54 | 1,835,698 | 0.29 |

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

Job posts named LISP for the first time at 22 companies from June to August 2026, against 35 from March to May. Over the 11 months from October 2025, 101 companies posted their first job naming it.

| Period | Companies naming it in a job post for the first time |
|---|---:|
| March to May 2026 | 35 |
| June to August 2026 | 22 |
| October 2025 to August 2026 | 101 |

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 LISP?

Employees' profiles account for 91% of the companies here. 834 companies name LISP in job posts they wrote. 215 show up in both job posts and employees' profiles.

| How we know | Companies | Share |
|---|---:|---:|
| Job posts name LISP | 834 | 9.4% |
| Employees' profiles list LISP | 8,011 | 91% |

## What size are the companies that use LISP?

36% of LISP users are companies with 50 to 999 employees, close to the mix on the typical tech page. 206 of its companies have fewer than 50 employees. These counts cover the 834 companies whose job posts name it.

| Size | Share | Typical tech page |
|---|---:|---:|
| Under 50 employees | 25% | 26% |
| 50 to 999 | 36% | 37% |
| 1,000 to 5,000 | 15% | 15% |
| Over 5,000 | 25% | 22% |

## Where are LISP companies based?

More than half of LISP companies are in the United States (52%). The United Kingdom is less common than usual, at 3.9% against 6.3% on the typical tech page. These shares cover the 834 companies whose job posts name it.

| Country | Companies | Share | Typical tech page |
|---|---:|---:|---:|
| United States | 395 | 52% | 48% |
| India | 73 | 9.5% | 7.5% |
| Canada | 43 | 5.6% | 3.8% |
| France | 30 | 3.9% | 5% |
| United Kingdom | 30 | 3.9% | 6.3% |
| Germany | 28 | 3.7% | 4.4% |

## Which teams work with LISP?

Job posts naming LISP point to engineering teams most often, at 7 companies.

| Team | Companies |
|---|---:|
| Engineering | 7 |
| CX | 5 |
| Infrastructure | 5 |
| Software engineering | 5 |
| Network operations | 4 |
| R&D | 4 |

## Which roles mention LISP most?

LISP shows up across many roles. The top one, Network Engineer, has 12% of the job posts. Network Engineer posts naming it numbered 19 from March to May 2026 and 14 from June to August.

| Role | Share | Oct 2025 to Aug 2026 | Mar to May 2026 | Jun to Aug 2026 |
|---|---:|---:|---:|---:|
| Network Engineer | 12% | 56 | 19 | 14 |
| CAD Designer | 11% | 50 | 14 | 10 |
| Software Engineer | 8.9% | 42 | 12 | 5 |
| Electrical Engineer | 2.5% | 12 | 3 | 6 |
| Mechanical Designer | 2.5% | 12 | 5 | 2 |
| Network Administrator | 2.5% | 12 | 4 | 3 |

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

From April to August 2026, 38 companies with 50 or more employees posted their first job naming LISP: 19 commercial, 8 mid-market and 11 enterprise. Among the new enterprise companies, Stefanini Group posted the most jobs naming it: 3.

| Group | Company | Job posts, April to August 2026 |
|---|---|---:|
| Commercial | [Blue Cross and Blue Shield of Kansas](https://sumble.com/orgs/blue-cross-and-blue-shield-of-kansas) | 2 |
| Commercial | [Pyrotek](https://sumble.com/orgs/pyrotek) | 2 |
| Commercial | [SANMINA-SCI TECHNOLOGY INDIA PRIVATE LIMITED](https://sumble.com/orgs/sanmina-sci-technology-india) | 2 |
| Commercial | [GTM BATIMENT](https://sumble.com/orgs/gtm-batiment) | 2 |
| Commercial | [KX](https://sumble.com/orgs/kx) | 2 |
| Mid-market | [Institut Teknologi Bandung](https://sumble.com/orgs/institut-teknologi-bandung) | 2 |
| Mid-market | [Astreya](https://sumble.com/orgs/astreya-partners) | 2 |
| Mid-market | [Stefanini North America and APAC](https://sumble.com/orgs/stefanini-project-alpha) | 1 |
| Mid-market | [Ropes & Gray LLP](https://sumble.com/orgs/ropes-&-gray) | 1 |
| Mid-market | [Diversified](https://sumble.com/orgs/diversified) | 1 |
| Enterprise | [Stefanini Group](https://sumble.com/orgs/stefanini-it-solution) | 3 |
| Enterprise | [TotalEnergies](https://sumble.com/orgs/totalenergies) | 2 |
| Enterprise | [Web Structures](https://sumble.com/orgs/web-structures) | 2 |
| Enterprise | [Orange](https://sumble.com/orgs/orange-2) | 1 |
| Enterprise | [Booz Allen Hamilton](https://sumble.com/orgs/booz-allen-hamilton) | 1 |

Companies that named LISP 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 LISP companies use?

LISP companies are 51 times as likely as similar companies to use Haskell: 11% of them, against 0.22%. Next is Clojure: 10% of these companies use it, against 0.26% of similar ones.

| Tool | Companies | Also name it | Typical | Times as common |
|---|---:|---:|---:|---:|
| Haskell | 56 | 11% | 0.22% | 51 times |
| Clojure | 51 | 10% | 0.26% | 41 times |
| Cisco SDA | 30 | 6.2% | 0.25% | 25 times |
| LPILE | 25 | 5.1% | 0.25% | 20 times |
| Erlang | 25 | 5.1% | 0.26% | 20 times |
| EasyPower | 26 | 5.3% | 0.27% | 20 times |
| RISA | 27 | 5.5% | 0.33% | 17 times |
| OpenRoads | 26 | 5.3% | 0.35% | 15 times |

Shares are out of the 487 companies whose job posts name LISP, not counting firms whose job posts name almost every technology.

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

Setting aside broad digital transformation, Generative AI is the theme teams hiring for LISP mention most, in 16 job posts. After that comes Microservices Migration, with 13.

| Project theme | Job posts |
|---|---:|
| Digital Transformation | 168 |
| Generative AI | 16 |
| Microservices Migration | 13 |
| Security Infrastructure Modernization | 7 |

- "Du migrierst unsere LISP-Kernanwendung und die Python-Services von einer On-Premise-Umgebung in eine moderne Cloud-Plattform (Container-first)" (Rulemapping, (senior) devops engineer (d/w/m), May 13, 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.