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Your trusted AI software development partner

Diffco is a San Francisco-based AI-first software engineering partner for growth-oriented teams. We embed senior engineers and product strategists who turn AI vision into shipped, revenue-driving products. Our team has spent the last 18 years building: SaaS platforms, web&mobile apps, and now AI-native systems for best startups to top U.S. enterprises in healthcare, finance, and other regulated industries. Products we developed are used by renowned companies such as American Express, Starbucks, Whole Foods, Mars, and many successful startups like Maze, Happier, and Legion Farm, among many others.

  • Min project size
    $25,000+
  • Hourly rate
    $100 - $149 / hr
  • Employees
    50 - 249
  • Locations
    San Jose, CA
  • Year founded
    Founded 2008
  • Languages
  • Timezones

1 Language that we service

  • English

4 Timezones that we service

CST
Central Standard Time (CST)
EST
Eastern Standard Time (EST)
MST
Mountain Standard Time (MST)
PST
Pacific Standard Time (PST)

1 Locations

  • San Jose , CA

Select Focus Area
Application Platforms
Amazon Application Development Framework
45%
Azure Platform
20%
Linux server
5%
AI Agent Development Focus
AI Agent Frameworks
40%
AI Agent Platforms & Builders
40%
Voice AI Agents
20%
AI Agent Purpose Focus
Business Intelligence AI Agents
10%
Coding & Development AI Agents
10%
Customer Service AI Agents
10%
Digital Workers AI Agents
10%
Finance AI Agents
10%
General Purpose AI Agents
10%
Image Creation AI Agents
10%
Productivity AI Agents
10%
Sales & Lead Generation AI Agents
10%
Workflow AI Agents
10%
AI Platform Integration Focus
Google Workspace AI Integration
25%
Salesforce AI Integration
25%
Hubspot AI Integration
20%
Gumloop AI Integration
15%
Notion AI Integration
15%
AI Technologies & Models
Anthropic
30%
Open AI GPT-3
25%
Open AI Dall-E 2
15%
Stable Diffusion
15%
Hugging Face Bloom
10%
Deepmind Gopher
5%
CMS Focus
Adobe Experience Manager CMS
25%
Frameworks and CMS
Other frameworks and CMS
5%
Programming & Scripting
Python
20%
Typescript
15%
Java
10%
Go
5%
Industries
Business services
25%
Medical
25%
Consumer products & services
10%
Education
10%
Financial services
10%
Manufacturing
10%
Supply Chain, Logistics, and Transport
10%
Clients
Midmarket ($10M - $1B)
45%
Enterprise (>$1B)
35%
Small Business (<$10M)
20%
Certified in:
AI Development

Pricing Snapshot

Min. project size $25,000+
Avg. hourly rate $100 - $149 /hr
Rating for cost 4.9 /5

What Clients Have Said

Diffco AI offers good value for cost, with clients noting efficient project delivery within budget. Most projects involved teams of 2-10 employees, with costs not explicitly detailed. Clients appreciated the responsiveness and alignment with their values, emphasizing their ability to meet diverse project needs.

This summary is based on verified Clutch reviews.

Most Common Project Size

$50,000 - $199,999 based on 28 reviews
< $49,999 $50,000 - $199,999 $200,000 - $999,999 > $1,000,000

Select a service to see pricing information

Diffco AI Review Insights

Overall Review Rating

5.0
  • Quality 5.0
  • Schedule 4.9
  • Cost 4.9
  • Willing to Refer 5.0

Top Mentions

Review Highlights

  • High Client Satisfaction

    The majority of clients express high satisfaction with Diffco's services, noting the quality of deliverables and the positive outcomes achieved through their collaborations.

  • Adaptability to Client Needs

    Diffco is praised for their flexibility and ability to adapt to client schedules and communication preferences, ensuring a seamless working relationship.

  • Potential for Broader Idea Exploration

    While clients are generally satisfied, there was a suggestion that Diffco could benefit from exploring and considering more diverse ideas during the development process to enhance creativity.

  • Strong Project Management

    Clients appreciate Diffco's project management skills, noting their responsiveness, clear communication, and efficient workflow. The use of tools like Jira and regular meetings help maintain transparency and progress.

  • Timely and Budget-Conscious Deliveries

    Multiple reviews commend Diffco AI for completing projects on time and within budget. Their ability to manage timelines effectively and deliver results as promised is highlighted as a significant advantage.

  • Proactive and Innovative Approach

    Diffco is recognized for their proactive approach, often providing valuable insights and suggestions that enhance project outcomes. Their entrepreneurial mindset is appreciated by clients.

Diffco AI Reviews

Submit a Review
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Services
Project Cost
Industry
Location

Web Dev & ERP Platform for Entertainment Company

  • Custom Software Development
  • $200,000 to $999,999
  • May - Nov. 2016
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"The solutions they developed work very well and are exactly what we were looking for."

Nov 13, 2020
CEO, QUEST ROOM
Ivan Petrushin
Verified
  • Arts, entertainment & music
  • Los Angeles, California
  • 51-200 Employees
  • Online Review
  • Verified

Diffco provided website and custom software development for an entertainment company. The team handled the integration of an ERP platform that includes a booking system and more business monitoring features.

Mobile SDK Development for AI Voice Platform

  • Custom Software Development
  • $50,000 to $199,999
  • June 2019 - Ongoing
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"We were impressed by Diffco's approach to the development process and how they engineer new solutions."

Nov 5, 2020
CEO, AI Voice Platform
Anonymous
Verified
  • Other industries
  • San Francisco, California
  • 11-50 Employees
  • Online Review
  • Verified

An AI voice platform needed to develop a mobile partner SDK and hired Diffco to provide the necessary services. The goal was to make it easier for clients to integrate the platform into their products.

Digital Content Distribution Platform for Software Company

  • Custom Software Development
  • $50,000 to $199,999
  • June 2019 - Ongoing
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"They have a perfectly organized business process and high-quality standards."

Nov 5, 2020
CEO, Devmind
Sergey Snezar
Verified
  • Other industries
  • Tallinn, Estonia
  • 11-50 Employees
  • Online Review
  • Verified

A software development, consultancy, and integration company needed to develop backend software for a digital content distribution platform for a client. They hired Diffco to provide the necessary services.

Mobile App Dev for AI-Enhanced Mobile Application

  • Mobile App Development
  • $200,000 to $999,999
  • Mar. 2018 - Ongoing
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"Diffco team is always ready to help; they share their ideas and suggest solutions of how to solve your task."

Oct 13, 2020
CEO, Fredd Inc.
Igor Gubernsky
Verified
  • Other industries
  • San Francisco, California
  • 1-10 Employees
  • Online Review
  • Verified

Diffco provided mobile app development for an AI-enhanced mobile application for foodies. The team created an MVP project to help the company with its launch.

Data Source Integration for MLOps Platform

  • Custom Software Development
  • $10,000 to $49,999
  • Sep. - Dec. 2019
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"They provided us with many valuable feedback on how to improve our product development strategy."

Oct 1, 2020
COO, Simiotics
Sophia Aryan
Verified
  • Other industries
  • United States
  • 1-10 Employees
  • Online Review
  • Verified

Diffco provided custom software development for an MLOps platform. The team built integration of modules for the client which required various AI APIs.

App Dev for Electrical & Electronic Manufacturing Company

  • Mobile App Development
  • $10,000 to $49,999
  • Jan. 2017 - Ongoing
5.0
Quality
4.5
Schedule
5.0
Cost
4.0
Willing to Refer
5.0

"They address issues quickly and communicate the outcomes to our team, resolving them if needed."

Apr 21, 2020
CEO & Founder, CloviTek Inc
Vitaly Kirkpatrick, MBA
Verified
  • Other industries
  • Salt Lake City, Utah
  • 1-10 Employees
  • Online Review
  • Verified

Diffco developed an iOS and Android app prototype that decodes audio signals from TV, allowing users to hear any TV within one network area on headphones. They also developed a Shopify website.

Technical Development for Gaming Community-Driven Mobile App

  • Custom Software Development
  • $200,000 to $999,999
  • May 2018 - Ongoing
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"They did a very good job at management."

Jan 22, 2020
CTO, SRG Community
Ilya Borodach
Verified
  • Other industries
  • San Francisco, California
  • 1-10 Employees
  • Phone Interview
  • Verified

Diffco is developing a gaming firm's technical infrastructure from scratch, building a customized blockchain solution and an admin panel. They use numerous frameworks for mobile and web development.

Back-end App Development for Digital Development Agency

  • Mobile App Development
  • $10,000 to $49,999
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"There was confidence that we don't need to be triple check their work. We never had to redo anything. Diffco US is very reliable."

Apr 29, 2016
CEO, Digital Development Firm
Anonymous
Verified
  • Other industries
  • Russia
  • 11-50 Employees
  • Phone Interview
  • Verified

Diffco US provided back-end development services, analytics, security checks, and upgrades for the client’s existing architecture as they created their mobile app.

Mobile App Development & UX/UI Design for Medical Device Co

  • AI Development Mobile App Development UX/UI Design
  • Linux server
    +2
  • $50,000 to $199,999
  • Feb. - June 2024
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"We had a great experience working with Diffco."

Mar 25, 2025
Executive, OVA Solutions
Anonymous
Verified
  • Medical
  • New York City, New York
  • 51-200 Employees
  • Online Review
  • Verified

Diffco developed a mobile app and backend system for a medical device company's end client. The team designed the app's UX/UI, integrated APIs, and provided post-launch maintenance and support.

Custom Software Dev for Security Tech Company

  • Custom Software Development
  • Azure Platform
    +1
  • $50,000 to $199,999
  • Apr. 2023 - Ongoing
5.0
Quality
4.5
Schedule
4.0
Cost
5.0
Willing to Refer
5.0

"Their unique ideas and great management style were impressive."

Jun 6, 2024
VP of Design & Integration, Good2Go Inc
Pete Gualfetti
Verified
  • Other industries
  • South San Francisco, California
  • 11-50 Employees
  • Online Review
  • Verified

Diffco has provided custom software development for a security tech company. This has included utilizing an advanced tech stack, offering annual technical support, and handling new feature integration.

Showing 11-20 of 31 Reviews

Software Development Packages

From zero to hero with clear planning - a Discovery stage for Sofware development. Brainstorming, UI prototyping, PRD, RnD, Project Management, and other features included.

Small

$35,000 /total
  • Meetings/Brainstorming: Up to 24 hours
  • UX/UI Designer : By Client Request
  • QA: Part Time
  • Front-end/Mobile engineer
  • Back-end engineer

Large

$85,000 /total
  • Meetings/Brainstorming: Up to 64 hours
  • UX/UI Designer : Full Time
  • QA: Full Time
  • Front-end/Mobile engineer
  • Back-end engineer
Features

Small

$35,000

/total

Medium

$60,000

/total

Large

$85,000

/total

Meetings/Brainstorming

Up to 24 hours

Up to 48 hours

Up to 64 hours

UX/UI Designer

By Client Request

Full Time

Full Time

QA

Part Time

Full Time

Full Time

Front-end/Mobile engineer

Back-end engineer

Project Manager

Part Time

Full Time

Full Time

Business Analyst/Tech writer

By Client Request

Part Time

Full Time

DevOps

3rd Parties Integration

Payment Getaway Integrations

App Publishing to App Store & Play Market

Technical Documents Preparation

Data Science / Machine Learning

By Client Request

By Client Request

By Client Request

Automation Quality Assurance

By Client Request

By Client Request

Yes

Small

$35,000

/total

Meetings/Brainstorming

Up to 24 hours

UX/UI Designer

By Client Request

QA

Part Time

Front-end/Mobile engineer

Back-end engineer

Project Manager

Part Time

Business Analyst/Tech writer

By Client Request

DevOps

3rd Parties Integration

Payment Getaway Integrations

App Publishing to App Store & Play Market

Technical Documents Preparation

Data Science / Machine Learning

By Client Request

Automation Quality Assurance

By Client Request

Medium

$60,000

/total

Meetings/Brainstorming

Up to 48 hours

UX/UI Designer

Full Time

QA

Full Time

Front-end/Mobile engineer

Back-end engineer

Project Manager

Full Time

Business Analyst/Tech writer

Part Time

DevOps

3rd Parties Integration

Payment Getaway Integrations

App Publishing to App Store & Play Market

Technical Documents Preparation

Data Science / Machine Learning

By Client Request

Automation Quality Assurance

By Client Request

Large

$85,000

/total

Meetings/Brainstorming

Up to 64 hours

UX/UI Designer

Full Time

QA

Full Time

Front-end/Mobile engineer

Back-end engineer

Project Manager

Full Time

Business Analyst/Tech writer

Full Time

DevOps

3rd Parties Integration

Payment Getaway Integrations

App Publishing to App Store & Play Market

Technical Documents Preparation

Data Science / Machine Learning

By Client Request

Automation Quality Assurance

Yes

Our Story

We started Diffco on a simple belief: great software comes from teams who think like product owners and hold a senior bar from day one. From our Silicon Valley base we build AI-native products — agents, copilots, and full systems — for teams in healthcare, fintech, and beyond. Clear communication, product-oriented thinking, and AI-first engineering aren't perks here; they're how we ship.

Meet the Team

Vadim Peskov

Vadim PeskovCEO

CEO and Co-Founder of Diffco, Advisor at Alchemist Accelerator and numerous startups. He is an expert and speaker who combines years of experience in AI, CV, Cybersecurity, statups and product design.

Eugene Nasonov

Eugene NasonovCTO

Eugene sets Diffco's technical direction and owns the engineering bar that clients hire us for. Over nearly two decades he's architected production systems across SaaS, mobile, enterprise, and AI-native products.

Paul Shpin

Paul ShpinVP of Engineering

Paul brings 25 years of engineering and entrepreneurial leadership to Diffco. A systemic architect and battle-tested founder behind many statups, he focuses on building resilient, scalable platforms.

Marko Karovic

Marko KarovicPMO

Marko a highly skilled PMO, has a strong track record delivering projects across Med-Tech, e-commerce, IoT, telecom, and machine learning. Tech-savvy and adaptable, he excels at driving results in complex, fast-paced environments.

What Sets Us Apart

Production-Ready AI Engineering

Senior engineers and AI agents in one delivery loop, with human review at every gate.

Product owners, not vendors

We start from your goals, challenge assumptions, and ship what moves the metric.

Senior teams, no junior bench

Top 1% engineers from day one, direct access, the engineer who scopes it ships it.

Clutch verification provides an additional layer of data to help you make the right purchasing decision of business services.

Learn More
Verified Client Reviews
27
Overall Review Rating
5
Source
Clutch
Last Updated
December 8, 2025

Business Entity

Business Entity Name Diffco US, Inc.
Source California Secretary of State
Jurisdiction of Formation California
Date of Formation January 27, 2015
Status Active
Last Updated February 26, 2025
ID 3749327

Credit Report Results

International Credit Risk Assessment Low Risk
Source Creditsafe
Last Updated February 26, 2025
Learn More About The Clutch Verification Process

Locations (1)

333 W San Carlos St #600 San JoseCA, United States 95110

21 - 30

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