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​

• ​QuantumBlack - Use data, analytics and design to help our clients be the best they can be.

• ​Data Revenue - Custom machine learning solutions for real-life problems.

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.

• ​M Cubed Software​

• ​Breakpoint Studio - Mobile Strategy, Design, Development.

Node

• ​Custom Node.js Module Development​

Design

• ​Supercreative​

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

• ​MOXY - Interdisciplinary studio, we specialise in designing and developing.

• ​wirefr.am - Tiny studio, focusing on beautifully crafted visual design.

• ​kadjax - Create Designs & Illustrations for digital products.

• ​Green Chameleon - Bristol based Design Agency.

• ​Tubik Studio - Digital agency creating mobile and web products.

• ​Red Collar digital agency​

• ​Dialectic Design​

• ​Unfold - Create delightful experiences for brands. (Dribble)

DB

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

Scala

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

Clojure

• ​JUXT​

Elixir

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

NixOS

• ​NumTide - Bringing the power of Nix to companies since 2016.

Elm

• ​Incremental Elm Consulting​

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)

• ​RedMadRobot - Full cycle product development.

• ​Parallax - Digital agency.

• ​Exyte - Mobile, Blockchain, and AR/VR Development Agency.

• ​The Yak Collective - Network of over 300 independent consultants, coaches, and freelancers with varied technical and creative skills.

• ​Cunningham & Cunningham - Small consultancy that has specialized in object-oriented programming.

• ​Codista - Professional Web Development in Vienna.

• ​Postlight - Digital Product Studio.

• ​Mirumee - High performance Python, React & React Native applications.

• ​Clearleft - Strategic Design & Innovation Consultancy.

• ​Software Mansion​

• ​Narative - Helps you brand, build and grow.

• ​black.af - Software consulting agency aiming to provide you with industry experience, forward thinking solutions and self-driven tools.

• ​Futurice - Digital Engineering and Innovation.

• ​Little Miss Robot - Digital Product Design Agency.

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.

• ​Clutch - B2B Ratings & Reviews.

• ​Software Consulting Legal Documents (Code)