React Native

• ​CallStack - React Native community-trusted, extremely skilled Javascript developers.

• ​Galois - Develops technology to guarantee the trustworthiness of systems where failure is unacceptable.

• ​Akveo - Delivering Web & Mobile Solutions.

• ​Spaceship Studio - Web & mobile development, strategy, and training.

React

• ​Formidable - JavaScript consultancy built for the modern web.

• ​Component Driven​

Rust

• ​Asquera - Specialise on the things below the covers: databases, queues, caches, APIs and the tiny details that make them all work together.

Data Science

• ​Quansight​

iOS

• ​Oak Snow Consulting - Based in Vermont, builds iOS and Web apps for early stage startups and small businesses.

• ​Exyte - Mobile, Blockchain, AR/VR development services.

Node

• ​Custom Node.js Module Development​

Design

• ​Supercreative​

• ​Filament Group - Design and front-end development studio.

DB

• ​OnGres - Expert postgres help for startups and enterprise.

Scala

• ​Propensive - European technology company, specializing in supporting the Scala programming community.

Elixir

• ​Dasshbit - Help startups and enterprises adopt and run Elixir in production.

Other

• ​Monadfix - Work with Haskell, PureScript, and Agda.

• ​feenk - Reshape the Development eXperience to make your systems explainable.

• ​Keming Labs - Build data-driven interfaces.

• ​Obsidian Systems - Software consultancy specializing in haskell, nix, curiosity, and innovation.

• ​Oxidizing Systems - Provide consulting services based on our experience in functional programming and safe systems.

• ​Reify Works - Help companies market and sell more software.

• ​YLD​

• ​PerfPerfPerf - Web performance consultancy. (Code)

Links

• ​How to Find Consulting Clients (2019) (HN)

• ​SaaS & Subscription Experts - Best consultants, agencies, and specialized services to help you grow.

• ​Ask HN: What mistakes did you make when starting as a consultant/freelancer? (2019)​

• ​Hourly Billing Is OK (2018)​

• ​Lessons from Six Years as a Solo Consultant (2019) (HN)

• ​Client - Simplified requirement collection for freelancers and agencies. Say goodbye to boring contact forms, emails and unproductive first calls.