A curated list of companies using Erlang in production, organized by industry.

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RocketJourney uses Erlang and Elixir to power up their backend platform to give users a tool for pursuing the habit of exercise with game mechanics, challenges, friendly peer-pressure and more.

Deleeng uses Erlang for data analysis with real time application updates, cache layers and delta updates handling big amount of data with very fast responses and great performance.

Consultancy
Amsterdam, Netherlands
maximonster.com

Maximonster uses Erlang and the Zotonic CMS for LearningStone and other platforms. LearningStone is a cloud based learning & collaboration platform for professional training and coaches.

As lead developer of the Erlang based open source content management system Zotonic, WhatWebWhat is the web- and Erlang consultancy company of Marc Worrell.

GoDaddy powers the world’s largest cloud platform dedicated to small, independent ventures. With 18.8M+ customers worldwide and 78M+ domain names under management, GoDaddy is the place people come to name their idea, build a professional website, attract customers and manage their work.

Shared, VDS and dedicated hosting. Using Erlang for customer services API, most loaded part of hosting system.

Industrial IoT, Embedded Systems
Munich, Germany (HQ) but company is f...
stritzinger.com
github.com/grisp

Running Erlang on Real Bare Metal (we make www.grisp.org), small embedded systems with Erlang technology from hardware to cloud services

Erlang is a core of our payment platform serving millions of customers around the world.

Helium is shaping the future by rewarding anyone for creating a global decentralized wireless network for billions of machines.

We’re developing and maintaining the open source IoT/MQTT broker VerneMQ, the core for many IoT platforms and use cases.

We are changing how e-commerce is built using Erlang and Elixir. Whether you are a freelancer or a large enterprise team, you can build, test and scale your payments systems with confidence.

Customer Services
Östersund, Sweden
loxysoft.com

Loxysoft produces software and services for customer service and sales. Our backend for outbound dialing is built with Erlang since 2005.

We create a shopping list application called “Buy Me a Pie!” (iOS, Android). Erlang is used in the backend for the application.

We build ambitious web and mobile solutions for clients across the world, mostly with Elixir/Phoenix and Ember.js. Our open source air-quality PWA Breethe (https://breethe.app) is backed by Elixir.

We are building the factory of the future! We use Erlang to deploy industry grade AI solutions.

We use Erlang to provide a decentralized data platform to our customers. We open-sourced Barrel (https://barrel-db.org), among many other Erlang libraries, which are a key part of our data platform.

Information Technology
London, United Kingdom; Buenos Aires,...
leapsight.com
leapsight.com
gitlab.com/leapsight

We use Erlang to do scalable, interactive, intelligent systems. Erlang also powers our products - Bondy, an OSS WAMP Broker and API Gateway; and LSD, a distributed, semantic and deductive database.

Software consultancy and development company, with experience in Erlang and Elixir.

Erlang powers Kivra’s backend services, handling secure digital mail for almost 3 million users in Sweden.

IoT
Berlin, Germany; Katowice, Poland
relayr.io
relayr.io/blog
github.com/relayr

Erlang is used mostly in microservices that serve REST interfaces for clients and also in device protocol adapters (HTTP, CoAP, SNMP, etc.).

Data analysis, visualization and collaboration for individuals and teams. Our backend is built with Efene and Erlang.

Postmates is the largest, most reliable on-demand delivery and pickup platform. Erlang and Elixir are used for multiple core backend components.

An open-source, blockchain-based platform for scalable & user-friendly decentralized applications. Written in Erlang and Elixir.

Erlang powers the Alert Logic Security-as-a-Service solutions that secure the application and infrastructure stack of the cloud, processing millions of events per second from over 4,000 customers.

Telecommunications
Luzern, Switzerland
k2informatics.ch

K2 uses erlang to guarantee high performance and availability in the fault-tolerant and scalable platforms and proxies build to address tele-communicating challenges.

Motorola Solutions uses Erlang and Elixir to develop components of mission critical communication systems that need to be reliable and fault-tolerant in the moment that matters.

Information Technology
Saint Petersburg, Russia
reksoft.com

Erlang helps us to build services which solve sophisticated problems related to big data storage, search and data lifecycle management using native cloud architectures.

Erlang is used for high-volume message processing and event routing.

Erlang supports our communications platform based on websockets, webrtc & bert. Currently supporting hundreds of customers and millions of users.

Erlang powers the Kazoo platform which offers Class 4, Class 5 and CPaaS functionality on top of a geo-redundant system.

The backend of Cursor Insight’s electronic signature solution (which serves millions of banking customers) is written in Erlang and Julia.

Erlang is used across our business, including implementation of Automated Office. The AO client, server, registry and peer connectors are all implemented in Erlang, as is our code deployment infrastructure. We provide Erlang consulting and write game and chat backends in Erlang by contract.

Erlang powers our IRC bouncer software, websocket API, and our IRCv3 enhanced team IRC servers and Slack integration. We rely on Erlang’s power in concurrency, long running processes and message passing to provide an always connected, modern chat service.

We use Erlang to develop Dwango Media Cluster (DMC) which is a content delivery system such as VoD and live streaming. Erlang is one of the core technologies in our company.

Erlang is used to develop WebRTC SFU software package, Sora. Erlang makes real-time communications comfortable along with fun of development and ease of operations.

Erlang is used to capture, record and stream video at 10-20 Gbit/s: TV channels, IP cameras, webinars

Erlang is used to power our web based cobrowsing and chat solution. It allows us to keep our infrastructure performant, while still being simple and easy to maintain. This allows us to efficiently support our customers.

Erlang powers the core of Klarna’s system serving millions of customers in Europe.

How do you support 450 million users with only 32 engineers? For WhatsApp, the answer was Erlang.

IBM

Erlang is used in part to power Cloudant’s full-text search system.

Erlang is used for routing requests to containers and Elixir is used for some internal systems.

Erlang is used as part of the system Grindr uses to maintain a reliable, top performing and scalable stack for more than 3.2 Million daily active users.

Erlang is being used by Goldman Sachs in part of its HF trading platform. The Goldman Sachs platform is a very low latency (microseconds) event-driven market data processing, strategy, and order submission engine.

Security
Montréal, Québec, Canada
genetec.com
resources.genetec.com/blog

IP video surveillance, access control, licence plate recognition, network security appliances

Ericsson uses Erlang to develop many of its products and an estimated 40 percent of all mobile traffic worldwide is carried over the company’s network solutions.

We provide reliable Erlang based BPM, ESB solutions used in telecomunications and utilities sectors.

We build trusted, fault-tolerant systems that can scale to billions of users. Our Erlang & Elixir expertise is the backbone of our clients’ operations.

Cisco ships 2 million devices per year which utlize the power of Erlang resulting in 90% of all internet traffic going through Erlang controlled nodes.

Bet365 uses Erlang and Elixir to service 20 million+ users and to meet the demands of 100,000s of concurrent users at peak times.

Altenwald is a company with wide experience helping others companies to grow with their technology stack and supporting and giving training for solutions based on Erlang and Elixir.

AdRoll uses Erlang within the live monitoring of their real-time bidding system. This involves live monitoring everything that could go wrong on a system receiving 500K+ bid requests per second, with a substantial monetary value attached.

Erlang Companies