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title: Companies using Lisp

---

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# Companies using Lisp
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{table-of-contents :depth 3 :start 2 :label "Table of contents" }
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## North America

### United States

- [Acceleration](https://www.acceleration.net/)
  - Acceleration is a leading provider of business class IT solutions:
    high-speed internet access services, private network design and
    managed support, website design, hosting,
    dedicated and virtual server hosting,... they have a [Github account](https://github.com/AccelerationNet/access/).
- [Alphacet, LLC](http://www.alphacet.com/) 👼
  - software tools for analysts, traders, and portfolio managers. Stamford, CT. Includes post-sales work helping clients [expand proprietary trading](http://www.linkedin.com/jobs?viewJob=&jobId=534391) libraries in Lisp.
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  - *Disappeared as of January 2018.*
- Boeing
  - uses the Allegro NFS Server in the onboard network system of Boeing 747 and 777 aircraft (source: [video, ELS 2015](https://www.youtube.com/watch?v=S7nEZ3TuFpA)).
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- [Clozure Associates](https://clozure.com/index.html)
  - software development consulting firm specializing in Common Lisp development. Somerville, MA. Sponsors and developers of OpenMCL.
  - *Active as of January 2018.*
- [Eaton Vance](https://www.eatonvance.com/)
  - financial services. Boston, MA. Bruce Lewis created [BRL](https://www.eatonvance.com/) , a dialect of Scheme called “a database-oriented language to embed in HTML and other markup.”
  - *Active as of January 2018*
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- [Franz Inc.](https://franz.com)
   - offers AllegroCL, a Common Lisp compiler and programming environment; [AllegroGraph](https://allegrograph.com), a graph database / triple store written in Common Lisp; and consultancy services. Oakland, CA.
   - *Active as of September 2018*
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- [Genworks](http://www.genworks.com)
  - provides General-purpose Declarative Language (GDL), a Generative
    Application Development system for creating web-centric Knowledge
    Based Engineering and Business applications, based on the free software [Gendl](http://gendl.org/). Genworks uses AllegroCL, its Head of Product Development is the founder of the Common Lisp foundation.
- [GrammaTech](https://www.grammatech.com/)
  - Source code analysis tools for C, C++, Ada. Ithaca, NY. [Hiring software engineers](http://www.grammatech.com/corporate/employment.html) and interns with experience programming in Scheme, compilers, and static analysis.
  - *Active as of January 2018*
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- [GraphMetrix](https://graphmetrix.com/)
  - automation of document extraction and publishing for construction, property and logistics.
  - *Active as of September 2020*.
> "We are using Lisp as the main engine for our RDF -> Sparql -> in-memory rdf db -> conceptual inference system at graphMetrix"
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- [iRobot](http://www.irobot.com/)
  - a company that designs and builds consumer robots for inside and
    outside of the home, including a range of autonomous home vacuum
    cleaners (like the [Roomba](https://en.wikipedia.org/wiki/Roomba),
    whose native code is written in a compatible subset of Common
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    Lisp). [research paper](https://www.researchgate.net/publication/2949173_L_--_A_Common_Lisp_for_Embedded_Systems).
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- [ITA Software by Google](http://www.itasoftware.com/)
  - airfare search engine and airline scheduling software. Cambridge, MA. [Common Lisp used for basically everything](http://lambda-the-ultimate.org/node/2491#comment-38434), currently hiring and expanding their business
  - *Active as of January 2018*
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- Nasa
  - the Nasa develops [PVS](https://github.com/SRI-CSL/PVS), "the People's Verification System". PVS is a verification system: that is, a specification language integrated with support tools and a theorem prover. See also [pvslib](https://github.com/nasa/pvslib).
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- [OurDoings.com](http://www.ourdoings.com/)
  - photo sharing site aimed towards casual photographers. Beverly, MA. Kawa Scheme running on JVM, created by [Bruce Lewis](http://brlewis.com/)
- [Secure Outcomes](http://www.secureoutcomes.net/)
  - builds and provides digital livescan fingerprinting systems for use by law enforcement, military, airports, schools, Fortune 500s, etc. All their systems are constructed in Common Lisp ([lispjobs announce](https://lispjobs.wordpress.com/2016/06/03/secure-outcomes-contract-common-lisp-programmer/)).
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- [ThirdLaw LLC](http://thirdlaw.tech/)
  - founded by Christian Schafmeister and Martin Cracauer, the CLASP and Cando  developers, ThirdLaw provides support and services for computational chemistry.
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- [Tilton Technology](http://www.tilton-technology.com/) 👼
  - Common Lisp projects like Cells, Celtk, and Cello, and TheoryYAlgebra, a learning game. NYC? Site for Ken Tilton, well known and [funny Lisper](http://bc.tech.coop/blog/061005.html).
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  - *Disappeared as of January 2018*
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- Paragent.com 👼
  - Open Source Desktop Management Software. Muncie, IN. Common Lisp (SBCL), article about why they chose Lisp, and about Lisp and Agile Development
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  - *Disappeared as of January 2018*
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- [Smart Information Flow Technologies](http://sift.info/)
  - Contract research house. Minneapolis, MN. Mission objective: “Getting information where it belongs when it’s needed.” [Hiring AI professionals](http://sift.info/jobs/ai.htm) to support human control of complex systems. Research areas include: Planning, Plan recognition, Intelligent UserInterfaces, Information Presentation and Management and Computational Etiquette.
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    Have at least one product at opensource – [Simple Hierarchical Ordered Planner 2](https://github.com/calyau/shop2/) (SHOP2).
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- Biographicon 👼
  - “A place for everyone’s biography.”  Wikipedia for people not notable enough to be on Wikipedia. San Francisco, CA. A YCombinator company, started by Ethan Herdrick and Daniel Terhorst. Running Kawa Scheme (also uses PLT Scheme for internal stuff).
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  - *Disappeared as of January 2018*
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- [Cadence](https://www.cadence.com/)
  - software and engineering services for electronic design automation. San Jose, CA (headquarters of worldwide company). Their IC design software uses SKILL (a Franz Lisp variant) as a scripting language.
- [GigaMonkeys Consulting](http://www.gigamonkeys.com/)
  - software development and QA consulting. Oakland, CA. Deserves mention because Peter Seibel wrote Practical Common Lisp, claimed by ITA Software as [their training manual](http://lambda-the-ultimate.org/node/2491#comment-38434).
- [Rigetti Quantum Computing](http://www.rigetti.com/)
  - Manufacturer of quantum computers and provider of their services through their product called *Forest*. Much of their code is written in Common Lisp, including their quantum virtual machine and quantum compiler. ([video](https://www.youtube.com/watch?v=f9vRcSAneiw), [paper](https://arxiv.org/abs/1608.03355), [github](https://github.com/rigetticomputing))
- [SRI](https://www.sri.com/)
  - client-sponsored R&D. Menlo Park, CA. [Hiring scientific CL programmers](https://sri.ats.hrsmart.com/cgi-bin/a/highlightjob.cgi?jobid=4086). See also [Artificial Intelligence Center](http://www.ai.sri.com/). They have lots of [Lisp-related links](http://www.google.com/search?q=lisp+site%3Ahttp%3A%2F%2Fsri.com) on their site as well.
- [StreamFocus](http://www.streamfocus.com/index)
  - project and action management software. San Francisco, CA. [Lisp and CLOS based](http://blog.streamfocus.com/about/)
- [Inspiration Software, Inc](http://www.inspiration.com/)
  - educational software, including [InspireData](http://www.inspiration.com/productinfo/inspiredata/index.cfm), a product for building data literacy. Beaverton, OR. Made in LispWorks.
- Synaptic Mash 👼
  - educational learning management system. Seattle, WA. Job requirements for server and web developers require experience with “Lisp Family”, SBCL, LispWorks
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  - *Disappeared as of January 2018*
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- [Tech Co-op](http://tech.coop/)
  - a not-for-profit, member-owned services co-operative dedicated to providing Technical Services for it’s members. Vancouver, Canada. Lisp for internal development and for members. Offers hosting and hosts many Lisp sites like common-lisp.net, cliki.net, and gigamonkeys.com.
- [EnRoute Systems](http://enroutesystems.com/home/)
  - (formerly Trip Planner) - trip planning solutions including planning engine, web front-end, hosting, and data import/repair. Spokanne, WA. Lots of details on the Technical Info page (including discussion of packages, infrastructure, and algorithms). Made by Jean-Paul Larocque, who has more lisp code on [his main site](http://www.thoughtcrime.us/), ThoughtCrime. ([news coverage](http://www.spokesmanreview.com/blogs/txt/archive/?postID=3691))
- DoneTrading.com 👼
  - online item trading. Tallahassee, FL. SBCL/Hunchentoot, mention Lisp on their Advantages page
- Impact Solutions “Smart Drilling” 👼
  - real-time analysis of oil rig drilling data. Houston, TX. Four developers, won the Offshore Technology Conference’s “Spotlight on Technology” award.
- [Grammarly](https://www.grammarly.com/)
  - create an English language writing-enhancement platform. [Running Lisp in Production ](https://tech.grammarly.com/blog/running-lisp-in-production)
- Matchcraft 👼
  - aggregation-based, local Internet advertising – online Yellow Pages. Santa Monica, CA. Previously had a major production system written in Lisp, has several internal tools written in Common Lisp, and is developing new products in Lisp .
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  - *Disappeared as of January 2018*
- [Mind AI](https://www.mind.ai)
  - Founded in 2018, Mind AI is an artificial intelligence engine and an ecosystem that was created to offer an entirely new approach to AI.
- [Wukix](https://wukix.com/)
  - vendor of the [MOCL](https://wukix.com/mocl) implementation for mobile and OSX.
- [Daric](https://daric.com/)
  - Industry-leading software to help manage risk and improve the customer experience for the world's leading financial institutions. Client of the MOCL mobile and OSX implementation.
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### Canada

-  [AMARC](http://www.amarc.org/)
   - organization supporting community radio broadcasting. Montreal, Canada. [Job page mentions Scheme](http://amarcwiki.amarc.org/wiliki.cgi?Careers), web development, and graphics. Uses a Wiki powered by Gauche
-  [Carre Technologies](http://www.carretechnologies.com/)
   - intelligent machines. Montreal, Canada. Main page just lets you send mail, but the site includes a Chicken Scheme extension for Gnu/Octave and a floating point vector and matrix library for Gambit Scheme.
-  Categorical Design Solutions 👼
   - eLearning, Knowledge Management, multimedia content creation technology and dissemination of contents over the Internet. Montreal, Canada. Listed on MSLUG Home Page, can’t find any more details about Lisp or Scheme usage
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   - *Disappeared as of January 2018*
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- [D-Wave Systems Inc.](https://www.dwavesys.com/)
   - The Quantum Computing Company (trademark). The world's first company to sell quantum computers. [Wikipedia Page](https://en.wikipedia.org/wiki/D-Wave_Systems)
-  Idalia 👼
   - natural language processing technology. Montreal, Canada. Listed on MSLUG Home Page but all jobs mention C++ and not Lisp
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   - *Disappeared as of January 2018*
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-  [Kronos, Altitude Division](https://www.kronos.com/)
   - Montreal, Canada. Listed on MSLUG Home Page, can’t find any more details about Lisp or Scheme usage
-  [MetaScoop](http://www.metascoop.com/)
   - consulting and custom development in Scheme. Montreal, Canada. Developed JazzScheme, recently released as Open Source.
-  [NuEcho](https://www.nuecho.com/en/)
   - speech enabled applications. Montreal, Canada. Scheme; Dominique Boucher was the main organizer of the Montreal Scheme/Lisp User Group (MSLUG)
-  [Silex Creations](http://silexcreations.com/en/)
   - multimedia solutions for avant-garde businesses, audio synthesis. Montreal, Canada. Listed on MSLUG Home Page, can’t find any more details about Lisp or Scheme usage

### Mexico
- [Ikkiware](http://www.ikkiware.com/)
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  - Developing a entrepreneurs oriented Social Network, [huuii.com](http://www.huuii.com/) which includes project management and productivity tools called Huuii Smart and Huuii People as a social network, Huuii Polls as a Polls tool and Huuii Sites as web site creator tool use [SBCL](http://www.huuii.com/site/lisp), [some of their post](http://www.huuii.com/site/lisp/1140) about Common Lisp.
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## Europe

### Belgium

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- [3E](http://www.3e.eu)
  - Provides "consultancy services and software products to improve the performance of sustainable energy systems and optimize energy consumption". The real-time data aggregation and alerting engines of its [Synaptic](http://www.3e.eu/synaptiq) product is Common Lisp based. ([job announce](http://3eeu.talentfinder.be/en/vacature/30101/lisp-developer))

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- PEPITe 👼
  - manufacturing intelligence, data mining. Angleur, Liege, Belgium. Their product Pepito was featured in the Franz Success Stories page.

### Denmark

- Mu Aps 👼
  - Building automatic trading systems. Farum, Denmark. Klaus Habro of Mu Aps wrote the cl-muproc library: Erlang-inspired multi-processing in Common Lisp. Two presentations (both pdf) and a summary.

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### England

- OpusModus Ltd
  - Building [Opusmodus](https://opusmodus.com/), an award-winning music composition software.

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### Finland

- Steel Bank Studio 👼
  - SBCL consulting. Helsinki, Finland. One man consulting firm consisting of Nikodemus Siivola, SBCL hacker and co-founder of common-lisp.net.
  - *Closed as the owner [clarified](https://github.com/azzamsa/awesome-lisp-companies/issues/1#issuecomment-354512421)*

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### France

- [Sony Computer Science Laboratories Paris](https://www.csl.sony.fr/), VUB Artificial Intelligence Laboratory in Brussels
  - developed an open source framework in Common Lisp for conducting experiments on language evolution: [Babel](https://emergent-languages.org/). Their Gitlab: https://gitlab.ai.vub.ac.be/ehai/babel-core. [Source](https://mailman.common-lisp.net/pipermail/pro/2019-April/001686.html).

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### Germany

- [CoCreate](http://www.cocreate.com/)
  - 3D CAD modeler for “explicit modeling”. Sindelfingen, Germany. 1M+ lines of Lisp, previously part of HP, paper on[ Common Lisp as an Embedded Extension Language](http://www.hpl.hp.com/hpjournal/95oct/oct95a7.pdf). Recent blog post about [CL use](http://www.clausbrod.de/cgi-bin/view.pl/Blog/WebHome#DefinePrivatePublic20071229_Comm)
- [Cognesys](http://www.cognesys.de/) ☒
  - “automatic ascertainment and further processing of verbal and text messages” (Natural Language Processing). Ubach-Palenburg, Germany. Looking for experienced and fresh Lisp programmers
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- [LambdaWerk](https://lambdawerk.com)
  - a software development and Web engineering company in Berlin, Germany, specialized in data interchange and transformation systems for the U.S. managed healthcare sector. Uses Clojure and Common Lisp.

- [MTU Aero Engines](https://www.mtu.de/)
  - MTU Aero Engines is Germany's leading engine manufacturer and an established global player in the industry. It engages in the development, manufacture, marketing and support of commercial and military aircraft engines in all thrust and power categories and industrial gas turbines. They use [Allegro CL](https://franz.com/success/customer_apps/mechanical_cad/mtu.lhtml).
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- [m-creations](http://www.m-creations.com/)
  - Custom software solutions for mid-size to big companies in
    finance/payment, health care, and media. Using Common Lisp in
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    different fields ranging from dynamic web applications and Natural
    Language Processing to systems engineering infrastructure in
    container clusters (DNS, dynamic load balancer).

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- [stk-hamburg](http://stk-hamburg.com/eng.html)
  - developing an ERP in Lisp ([ECL 2018 lightning talk](https://european-lisp-symposium.org/static/2018/lt2.pdf)).

### Netherlands

- Infometrics
  - Automatic Functional Sizing. Muiderberg, Netherlands. Analyzes requirements and design documents for business software to make a Function Point Analysis. Sole proprietorship (Ernst van Waning) using Allegro/Lispworks.

### Norway

- [Netfonds Bank ASA](http://www.netfonds.no/)
  - bank, stock trading. Oslo, Norway. [Everything between the web front end and the database is Common Lisp](http://www.lispworks.com/success-stories/netfonds-primetrader.html) – middleware, trading systems, backoffice support, etc. Cross platform stock trading application. [PrimeTrader](http://www.netfonds.no/manual_pt_eng.php) product is a LispWorks success story.
- [Selvaag](http://www.selvaag.no/)
  - home building, real estate management, [developing IT tools](http://www.selvaag.no/en/aboutselvaag/Sider/default.aspx) for industrial housing construction. Oslo, Norway. Developed the [BlueThink](http://www.selvaag.no/en/Companies/Selvaagbluethink/aboutus/Sider/default.aspx) knowledge management tools for housing construction planning.

### Poland

- [TurtleWare](http://turtleware.eu/)
  - A software (and Common Lisp) consulting boutique. Run by Daniel Kochmański, who maintains Embeddable Common Lisp.

### Portugal

- [SISCOG](http://www.siscog.pt/)
  - decision-support systems for resource planning and management in transportation companies. Lisboa, Portugal. Allegro CL since version 5 – before that it was Lucid Lisp.

### Spain

- [RavenPack](https://www.ravenpack.com/)
  - RavenPack is the leading big data analytics provider for financial services. Lots of NLP and multi-threaded, distributed systems programming in CL (Allegro CL). Marbella, Spain. Actively searching for CL (senior and junior) developers.

### Sweden

- [Anaphoric](http://www.anaphoric.com/)
  - natural language interface for relational databases. Umeå, Sweden. Including [Michael Minock](http://www.cs.umu.se/~mjm/) of Umeå University. Downloadable demo of their CatchPhrase product. 20K lines of Clisp code.
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- Doremir Music Research AB
  - Developing [ScoreCloud](https://scorecloud.com/), a music notation software (a LispWorks product). Stockholm.
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- Noteheads 👼
  - digital sheet music creation and distribution. Sweden. Mentioned as a successful case study in Successful Lisp, but their website focuses more on their musical pedigree (including having the guy from Roxette on their board)
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  - *Disappeared as of January 2018*
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- Stix.to 👼
  - shareable notes and messages on any web page. Sweden. Common Lisp, Ties Stuij, an employee, writes the Fallen Frukt blog
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  - *Disappeared as of January 2018*
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### Switzerland

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- [Emotiq](http://emotiq.ch/) 👼
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  - building a next generation blockchain with an innovative natural-language approach to smart contracts.
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  - *Disappeared as of January 2019*

## Africa

### South Africa

- [Mtsholdings](http://mtsholdings.co.za/technology/)
  - building Insite, a flexible, cloud-based B2B social sustainability
    management platform. Insite's core is built in Common Lisp.
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## Asia

### India
- Tachyon Technologies 👼
  - Quill program for typing in Indian languages, and Cspace, an open source p2p communication platform. Bangalore/Chennai, India. Jobs page mentions Common Lisp, Scheme, Lisp Interpreter, Optimizing Compiler, Natural Language Processing, Machine Learning. Job page includes coding puzzles!
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  - *Disappeareded as of January 2018*
- [deftask](https://deftask.com/)
  - task management app for teams
  - deftask backend and the [command-line app](https://github.com/deftask/deftask-cli) are written in CL.
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### Japan
- [Mathematical Systems, Inc](http://www.msi.co.jp/english/)
  - scientific software, computer science, internet solutions, social systems. Tokyo, Japan. Their [Car Crash Database System](http://cl-www.msi.co.jp:8000/cl-http/hcpage/intoro-main-e.html) (using [Allegro](http://www.franz.com/success/customer_apps/knowledge_mgmt/msi.lhtml)) lets engineers browse over 1TB of numerical, photo, and video data about car crashes to design safer cars (used by Honda). If you know Japanese, they have a page called [“Why Common Lisp?”](http://cl-www.msi.co.jp/solutions/knowledge/lisp-world/articles/why-lisp) (translation appreciated).
- [Somewrite](http://somewrite.jp/)
  - a native advertising network platform ([press article](http://thebridge.jp/en/2016/04/asahi-shimbun-acquires-somewrite)) where [Eitaro Fukamachi](https://github.com/fukamachi/) works. [lispjob announce](https://lispjobs.wordpress.com/2015/04/24/common-lisp-web-developer-somewrite-tokyo-or-remote/).
- [Pocket Change Inc.](https://www.pocket-change.jp/en/)
  - Pocket Change is an innovative service. It converts leftover coins and bills to electronic money, gift codes, and coupons of your choice.
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  - Pokcet Change uses Common Lisp in [their exchange machine](https://www.slideshare.net/fukamachi/building-gui-app-with-electron-and-lisp). [Eitaro Fukamachi](https://github.com/fukamachi/) is Lead Engineer here.
- [T-cool](https://t-cool.github.io/)
  - A not-for-profit, dedicated to provide Common Lisp seminars and teaching.
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## Australia

- Memetrics (now part of Accenture)
  - testing and optimization for digital marketers. Sydney. Includes Alain Picard, frequent poster to Lisp forums. A LispWorks success story. Their XOS Software platform automated marketing tests, making it cheaper and easier to run more tests.
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  - *Disappeared as of January 2018*
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## Virtual or Unsure of Location

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- the [PostgreSQL](https://www.postgresql.org) organization uses Common Lisp in at least two products:
  - [pgloader](http://pgloader.io/) (see [why it was rewritting from Python](https://tapoueh.org/blog/2014/05/why-is-pgloader-so-much-faster/)), and
  - [pgcharts](https://github.com/dimitri/pgcharts).
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- [Raytheon SigLab](http://www.lispworks.com/success-stories/raytheon-siglab.html)
  - a signal processing analysis pipeline for developing algorithms. A LispWorks success story.
- [Untyped](https://untyped.com/)
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  - web applications, custom software development, training. Virtual Office (5 people). [PLT Scheme](http://www.untyped.com/untyping/archives/2007/11/custom_dispatch.html), very good [blog](https://untyped.com/untyping/)
- [Utilitymage](http://utilitymage.com/)
  - In Utility Mage (Umage) the aim is to make as much of the utility management process transparent. This allows both utility managers and the invoiced entity access to the relevant data like invoices, trend reports, exception reports and audit trails, such as photos of meter readings. As of may 2018, it is a startup still in Health mode. Umage is built in Common Lisp.
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## Other Resources
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- [Allegro Common Lisp Success Stories ](https://franz.com/success/) - by Franc Inc
  - [Customer Application List](https://franz.com/success/all_customer_apps.lhtml)
- [LispWorks Success Stories  ](http://www.lispworks.com/success-stories/index.html)
- [Paul Graham - Applications](http://www.paulgraham.com/apps.html)
- ALU Wiki – Industry applications
- LispJobs archives

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## Note
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- 👼 : Dead Companies.


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## Guidelines to contribute
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Please follow this format of the list, if you want to make a contribution.

- `[Company name](#link)`
  - `description. addditional information.`
- Put the name of the **company** and **link** to its **homepage** in the list.
- Write a **description** and **additional description** for the company.
- Make sure it is put under the **appropriate location**.
- If the company doesn't fit in any **existing location**, make a **new one** for it.
- Ensure everything is **alphabetically sorted**.
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# Credit
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- This list derived from [Peter Christensen](http://pchristensen.com/blog/lisp-companies/) work with his kind permission.
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- This list was extracted from [Awesome Lisp Companies](https://github.com/azzamsa/awesome-lisp-companies) project under
  [Creative Commons Attribution 4.0 International License](http://creativecommons.org/licenses/by/4.0/).