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Where your ideas turn into code and interfaces

We create business value, not just another piece of software!

We are a transparent, proactive, and business-focused team with deep expertise in AI/ML, Generative AI, LLM integration, and complex custom software development. 

Our proven track record includes 58+ 5-star Clutch reviews and over 10 years on the market.

WE FOCUS ON:

  • Min project size
    Undisclosed
  • Hourly rate
    $50 - $99 / hr
  • Employees
    50 - 249
  • Locations
    San Francisco, CA
  • Year founded
    Founded 2015

Overview by:

Reviewer avatar
Mitya Smusin

2 Locations

  • San Francisco , CA
  • Warszawa , Poland

Select Focus Area
Application Platforms
Heroku
60%
Other app platform
40%
AI Technologies & Models
Open AI GPT-3
35%
Anthropic
30%
Cohere
15%
Open AI Dall-E 2
10%
Stable Diffusion
10%
Frameworks and CMS
Django
40%
Programming & Scripting
Python
60%
PHP
10%
UnrealScript
10%
Industries
Information technology
50%
Financial services
25%
Arts, entertainment & music
5%
Automotive
5%
Education
5%
Hospitality & leisure
5%
Real estate
5%
Clients
Midmarket ($10M - $1B)
50%
Enterprise (>$1B)
25%
Small Business (<$10M)
25%

Pricing Snapshot

Min. project size Undisclosed
Avg. hourly rate $50 - $99 /hr
Rating for cost 5 /5

What Clients Have Said

Yellow provides good value for cost, with project investments ranging from $10,000 to $1.9 million. Clients appreciate their responsiveness and quality, often citing timely delivery and effective communication. Most projects are completed on or under budget, highlighting their efficiency and commitment.

This summary is based on verified Clutch reviews.

Most Common Project Size

$50,000 - $199,999 based on 52 reviews
< $49,999 $50,000 - $199,999 $200,000 - $999,999 > $1,000,000

Select a service to see pricing information

Highly Rated Similar Providers

Yellow Review Insights

Overall Review Rating

5.0
  • Quality 5.0
  • Schedule 5.0
  • Cost 5.0
  • Willing to Refer 5.0

Top Mentions

Review Highlights

  • Strong Client Communication

    Yellow is noted for its excellent communication skills, maintaining open lines of communication through various platforms like Slack, email, and virtual meetings. Clients appreciated their responsiveness and ability to address feedback promptly, contributing to a smooth workflow.

  • Flexibility and Adaptability

    Yellow is praised for their flexibility and adaptability, particularly in accommodating changing project requirements and timelines. Their ability to pivot and adjust to client needs is a significant strength.

  • Challenges with Project Management

    A few clients reported issues with project management, such as overconfidence in timelines and mismanagement of project tasks. While these were not widespread, they suggest areas for improvement in project oversight and estimation accuracy.

  • Dedicated and Responsive Team

    Clients frequently mention Yellow's dedication and responsiveness. The team is described as committed and willing to go above and beyond to meet client needs, often working outside of regular hours to ensure project success.

  • Expertise in Diverse Technology Stacks

    Yellow has demonstrated proficiency across multiple technology stacks, including Node.js, React, Ruby on Rails, and Flutter. Clients praised their ability to integrate seamlessly with existing systems and deliver high-quality solutions for complex projects, such as AI-driven applications and mobile app development.

  • Commendable Project Management Skills

    Yellow's project management is frequently praised for its efficiency and reliability. Clients highlighted their proactive communication, adherence to timelines, and ability to manage projects smoothly using tools like Jira and Slack, ensuring projects are delivered on time and within budget.

Yellow Reviews

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Services
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Industry
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Web App Development for Client Management Platform

  • Web Development
  • Ruby on Rails Ruby
  • $50,000 to $199,999
  • May 2016 - Ongoing
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

“Yellow is by far the best at helping us make decisions to push our company forward.”

Mar 12, 2018
Co-Founder, SmartCenter
William Hamilton
Verified
  • Information technology
  • Irvine, California
  • 1-10 Employees
  • Phone Interview
  • Verified

Having finished development of a Rails app, Yellow now continues to implement new features. With several third-party integrations and a customer portal, the app boasts strict IRS-compliant security components.

iOS & Android Dev for Family Messaging App

  • Mobile App Development
  • $200,000 to $999,999
  • Oct. 2017 - Ongoing
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"Yellow elevated our product's outline and vision."

Mar 9, 2018
Founder, Famlicious Inc.
Jim Barkow
Verified
  • Other industries
  • San Francisco, California
  • 1-10 Employees
  • Online Review
  • Verified

Providing additional development resources and expertise, Yellow collaborated on a dual-platform messaging app that integrates multiple third-party systems and is slated for public launch in one month.

Ruby Web Dev & UI/UX for Auto Market Platform

  • Web Development
  • Less than $10,000
  • Feb. 2018 - Ongoing
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"Their ability to develop single-page mockups into full websites has been incredibly valuable to our team." 

Mar 8, 2018
Product Manager, Speed Digital
Eric Morgan
Verified
  • Other industries
  • Charlotte, North Carolina
  • 11-50 Employees
  • Online Review
  • Verified

Yellow provides supplementary development and UI/UX resources to increase product output and manage backlogs. In addition to frontend and wireframe design, the team contributes backend expertise with Ruby.

AI Dev for Development Company

  • AI Development
  • Machine Learning
  • $10,000 to $49,999
  • Jan. - Apr. 2025
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"They were proactive, transparent, and responsive."

Oct 21, 2025
Marketing Manager, Pynest LTD
Anastasiya Chyrko
  • Other industries
  • Cyprus
  • 51-200 Employees
  • Online Review

Yellow developed an AI-powered image classification system in Python for a development company’s enterprise client, with a focus on computer vision and model deployment.

AI System Development for Software Development Company

  • AI Consulting AI Development
  • Open AI GPT-3
  • $200,000 to $999,999
  • Feb. - July 2024
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0
"Their project management was exceptional."
Aug 15, 2024
CEO, SumatoSoft
Yury Shamrei
Verified
  • Information technology
  • Northeast - USA
  • 51-200 Employees
  • Online Review
  • Verified

Yellow developed an AI-driven customer support system for a custom software development company. The goal was to enhance customer experience, reduce response times, and improve solution accuracy.

Chatbot Dev for Global Healthcare Nonprofit

  • AI Development Mobile App Development Web Development
  • Confidential
  • Jan. - Mar. 2024
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"The team from Yellow finished the project on time, always responding to our needs."

Jun 24, 2024
Social Media Officer, Doctors Without Border Southern Africa
Gcobisa Ndzimande
Verified
  • Non-profit
  • South Africa
  • 51-200 Employees
  • Online Review
  • Verified

Yellow developed a Facebook chatbot for a global healthcare nonprofit organization. The team also created a database to store information about various diseases and provided QA and deployment support.

Mobile App & Web Design & Dev for Tech Startup

  • Mobile App Development Web Design Web Development
  • Other app platform Financial Mobile App Development
  • $50,000 to $199,999
  • Apr. 2023 - Ongoing
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

“Yellow has done everything we expected and asked them to do.”

May 23, 2024
CEO, Preesh
Matthew Bernier
  • Information technology
  • New York, United States
  • 1-10 Employees
  • Phone Interview

A tech startup has hired Yellow to build a money transfer API from scratch. The team has worked on mobile app and website design and development.

Web & Mobile App Development for E-Commerce Company

  • Custom Software Development Mobile App Development Web Development
  • Confidential
  • Sep. - Dec. 2023
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0
"They are talented, nice people."
Dec 15, 2023
President, E-Commerce Company
Samuel
  • Consumer products & services
  • South - USA
  • 1-10 Employees
  • Online Review

An e-commerce company hired Yellow for web and mobile app development. The team took the client's e-commerce idea to create the site and application for it.

Mobile App Development for Electrical Engineering Company

  • Mobile App Development Web Development
  • Amazon Application Development Framework NodeJS React Native React
  • Confidential
  • June 2023 - Ongoing
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0
"They were able to pickup an extremely complicated project with a very complex data model."
Dec 14, 2023
Co-Founder & CTO, Electrical Engineering Company
Anonymous
Verified
  • Other industries
  • Montreal, Quebec
  • 1-10 Employees
  • Online Review
  • Verified

Yellow has developed a mobile app for an electrical engineering company. The team has integrated the client's existing API and IDP, created a CRUD interface, fixed bugs, and implemented various migrations.

App Dev & UI/UX Design for SaaS Company

  • AI Development Mobile App Development Web Development
  • Confidential
  • Jan. 2023 - Ongoing
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"Yellow did an excellent job designing a beautiful UI for our low code Web app that was intuitive and sleek."

Jun 22, 2023
Executive, Kubiy.ai
Anonymous
Verified
  • Other industries
  • Palo Alto, California
  • 11-50 Employees
  • Online Review
  • Verified

Yellow has provided app development and UI/UX design services for a SaaS company. They have designed the UI for the client's low-code web app.

Showing 41-50 of 60 Reviews

Our Story

We firmly believe that our success is intricately tied to the success of our clients. As a result, we strive to create a mutually beneficial relationship that goes far beyond the typical business-client dynamic. We understand that our clients' success is what ultimately drives our own, and we're committed to doing everything in our power to help them achieve their goals. This is why we have a 5.0 rating on Clutch and such a high NPS score. Every second client has recommended us to their busine

Meet the Team

Mitya Smusin

Mitya SmusinCEO

A serial entrepreneur and technology visionary passionate about making AI feel more human.

Locations (2)

415 Mission Street San FranciscoCA, United States 94105

10 - 15

Contact Yellow

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