Based in Silicon Valley. Operate worldwide.
AI engineering. Built fast.
Production-ready.
Products we developed are used by
Top AI Development
Company
Top 10 Software
Developers
Top AI Developers
in California
Top Staff
Augmentation
Company
Diffco turned our concept into a polished product from scratch, delivering on a tight timeline. Clear communication, organized project management, and a strong mix of creativity and technical expertise produced an app that exceeded our vision.
5.0
Mason Menin
Co-founder at WYA Group, Inc.
Their commitment to excellence ensures our platform remains robust and adaptable to our evolving needs. With their expertise, we've successfully enhanced our offerings, making our collaboration highly effective.
5.0
Pete Gualfetti
Head of Design and Integration at Good2Go
We were impressed by Diffco's approach to the development process and how they engineer new solutions. They look ahead, learn about your product and strategy, and develop sophisticated, highly functional solutions.
5.0
Stas Tushinskiy
CEO & Co-founder at Instreamatic
Diffco supplied us with the skilled engineers we needed to meet our ambitious goals. Their account manager proactively addressed concerns, ensuring our expectations were met.
5.0
Razvan Spatariu
Senior Software Engineering Manager at Multiverse
Diffco's expertise and engineering approach increase the reliability and efficiency of our IoT infrastructure. Diffco has proven to be a reliable partner with exceptional expertise. I highly recommend their services.
5.0
David C Thompson
Senior Digital Initiatives director at ChemTreat
The quality and consistency of the team make Diffco stand out from other vendors.
5.0
Art Danielov
CEO at Flashgrid
They were communicative, consultative, and helpful. They went above and beyond all the way. What an amazing team. I will work with them again and again.
5.0
Don Markland
CEO at Accountability Now
Diffco turned our concept into a polished product from scratch, delivering on a tight timeline. Clear communication, organized project management, and a strong mix of creativity and technical expertise produced an app that exceeded our vision.
5.0
Mason Menin
Co-founder at WYA Group, Inc.
Their commitment to excellence ensures our platform remains robust and adaptable to our evolving needs. With their expertise, we've successfully enhanced our offerings, making our collaboration highly effective.
5.0
Pete Gualfetti
Head of Design and Integration at Good2Go
Services we provide
AI/ML Engineering
Production-ready AI, ML, RAG, and computer vision — integrated into your stack. We build on OpenAI, Anthropic, Gemini, Llama, Mistral, DeepSeek, Qwen, and more, and turn your data into secure, measurable revenue gains — not pilots that gather dust.
LLM
ML
RAG
Computer Vision
MLOps
Agentic AI Engineering
Custom agents, copilots, and multi-agent systems that automate real work — sales, support, ops, research. Production-grade from day one, with guardrails, evals, and observability built in.
AI Agents
Copilots
Multi-Agent
LangGraph
Voice AI
AI-Native Software Engineering
Full AI-native products — web, mobile, and SaaS — engineered end-to-end with AI baked into every layer. From conversational UIs to recommendation engines and agent-first workflows.
AI-Native
SaaS
Web
Mobile
Vibecode Rescue
AI-Driven Product Discovery
Validate scope, architecture, and ROI before committing to a full build. From hypothesis to a working PoC in 1–2 weeks, with use-case mapping, data audit, and a costed roadmap.
Use-case mapping
Architecture
Rapid PoC
1–2 weeks
AI Staff Augmentation
We embed top 1% senior AI/ML, full-stack, and product engineers directly into your team who work AI-first by default. Our experts adopt your tools, stack, and culture — adding senior capacity without long hiring cycles.
Cultural fit
Top 1%
Instant hire
Web Development
Modern websites and web apps engineered by senior teams — fast, responsive, easy to manage. Integrate AI agents, copilots, or data when you need to; ship a great product even if you don’t.
Contentful
Magento
WordPress
Shopify
Sitecore
Mobile Development
Native and cross-platform iOS and Android apps engineered by senior teams. AI features (agents, copilots, voice, computer vision) when your roadmap calls for them — solid, fast, user-loved apps whether or not you need them.
Swift
React Native
Flutter
Kotlin
Java
Our Expertise for Your Success
Using powerful, industry-specific software solutions, our team can help you achieve your business goals.
AI
Healthcare
Finance
Technology
Retail and
E-commerce
E-commerce
SaaS
Business services
Media and
entertainment
entertainment
How Diffco helps you
deliver the best results
Product‑Oriented
Approach
We think like product owners, not just vendors. We research your users, challenge assumptions, and help you prioritize features that move the metrics that matter.
AI-First by
Default
Every project runs on our Production-Ready AI Engineering practice — senior engineers paired with AI agents, shipping faster without lowering the bar. AI is the engine, not the marketing.
Clear
Communication
We build relationships on integrity and trust, with transparent processes and proactive communication at every stage of the work.
Customer-Centric
Approach
We start from your business goals, not our tech stack, and deliver tailored solutions that drive measurable impact for your team and customers.
How we build
A delivery method built for the AI era, not retrofitted to it.
Seven named stages. Continuous iteration. AI runs alongside us in every conversation — surfacing blind spots, edge cases, and contradictions before they become rework — while senior engineers and Human QA own the decisions that move risk and ship the product. You always know who is driving, what you're approving, and what comes next.
- 01
Discover
Human + AIWorkshops and stakeholder interviews with AI in the room. It cross-verifies inputs across calls, docs, and Slack threads — flagging blind spots, edge cases, and contradictions humans miss.
- 02
Plan
AIAI decomposes the work, picks architecture, models, and tools. Surfaces risks, costs, trade-offs — and conflicts between stated requirements — before they become bugs.
- 03
Align
HumanYou review and approve. Every decision is logged — an auditable trail before any code is written. No black box, no scope drift.
- 04
Build
AIAI agents execute the approved plan inside engineered guardrails. Senior engineers steer and unblock. Sprint cadence with working artifacts, not status decks.
- 05
Validate
Human + AIThree independent layers on every release candidate: automated evals, senior code review, and dedicated Human QA — manual and exploratory testing alongside security, performance, and accessibility checks.
- 06
Release
Human + AIProduction deployment, UAT, knowledge transfer, runbooks. Cutover is documented, reversible, and on a schedule you approve. Your team takes the keys — or we operate it for you.
- 07
Evolve
Human + AILaunch is a milestone, not a finish line. Monitoring, feedback loops, and incremental improvements keep the system compounding — and feed the next discovery cycle.
↻Each release feeds the next discovery
Auditableplans, decisions, changes
Iterativealignment loop & sprint loop
Accountablesenior engineers and Human QA on every gate
Human-led AI-led Combined
Our cases and testimonials from delighted clients
AI
Front-end
Back-end
API
SaaS
AI moderator for scalable user research interviews
Voice recognition
AI
SDK
We've developed an audio marketing platform with intelligent advertisements
We were impressed by Diffco's approach to the development process and how they engineer new solutions.
Stas Tushinskiy
CEO & Co-founder at Instreamatic
AI
Mobile app
Back-end
Product discovery
B2C
Full development + AI agentic product discovery
Diffco partnered with Happier to provide full product development and AI-driven agentic product discovery for their emotional wellness platform. We led end-to-end engineering across mobile and backend, and used AI agents during discovery to map user behavior, generate product hypotheses, and validate them against real user data — turning daily check-ins, mood patterns, and content interactions into personalized, evidence-based wellbeing experiences at scale.
SaaS
Performance and Load Testing
Access
Led Core Platform Development & Supported Product Growth Through Seamless Operations
Their commitment to excellence ensures our platform remains robust and adaptable to our evolving needs. With their expertise, we've successfully enhanced our offerings, making our collaboration highly effective.
Pete Gualfetti
Head of Design and Integration
Find out more our case studies
See more casesHow we build
We prioritize your success, understand your unique needs, and deliver tailored solutions that drive your business growth.
Success stories of our clients
Funding
Legionfarm raises $17.8M Series A
Partnership
3 years of collaboration with FlashGrid
Achievement
RedTrack reaches 800+ media-buying businesses across 107 countries
Milestone
Maze workforce hits 162 as Interview Studies launches AI-moderated research at scale
Partnership
FlashGrid + Microsoft celebrate 7 years powering Oracle databases on Azure
Partnership
Multiverse + KPMG UK launch national AI upskilling programme
Milestone
Happier surpasses 1M+ users on its emotional fitness platform
AI Performance
Instreamatic + Dentsu: AI audio lifts brand favorability by 22 points
Funding
RedTrack raises $3.2M Series A (Lead Ventures, InstaVC, Iron Wolf Capital)
AI Launch
RedTrack ships AI Copilot for media buyers
Partnership
Multiverse + Palantir launch NHS Federated Data Platform Apprenticeship
Industry Recognition
Maze publishes Future of User Research 2026
Award
Maze named one of America’s Best Startup Employers
AI Launch
Instreamatic launches Speaky — voice-AI customer communications
Acquisition
WYA acquired by Chills U.S.
Product Launch
FlashGrid Server launches for Oracle DB on AWS and Azure
Funding
Multiverse secures $220M Series D · valuation $1.7B
Achievement
FlashGrid scores 100 on CSAT for the second year in a row
AI Launch
Instreamatic launches Generative AI Ads
Milestone
Quire achieves One Million Technical Reports milestone
Acquisition
Zimperium acquires Mi3 Security
Acquisition
Dun & Bradstreet acquires Orb Intelligence
Award
ChemTreat awarded Platinum Safety Honor by HighWire
Achievement
FlashGrid recognized as a Fastest-Growing Company (FT Americas)
Funding
FoodRocket raises $25M Series A led by Alimentation Couche-Tard
Award
Instreamatic wins Customer Magazine Voice Technology Excellence Award
Funding
Quire obtains major investment from SSM Partners
Funding
Instreamatic raises $6.1M Series A
Funding
Legionfarm raises $17.8M Series A
Partnership
3 years of collaboration with FlashGrid
Achievement
RedTrack reaches 800+ media-buying businesses across 107 countries
Milestone
Maze workforce hits 162 as Interview Studies launches AI-moderated research at scale
Partnership
FlashGrid + Microsoft celebrate 7 years powering Oracle databases on Azure
Browse our latest blog articles
Let's build something
great together.
Diffco turned our concept into a polished product from scratch, delivering on a tight timeline. Clear communication, organized project management, and a strong mix of creativity and technical expertise produced an app that exceeded our vision.
5.0
Mason Menin
Co-founder at WYA Group, Inc.
Their commitment to excellence ensures our platform remains robust and adaptable to our evolving needs. With their expertise, we've successfully enhanced our offerings, making our collaboration highly effective.
5.0
Pete Gualfetti
Head of Design and Integration at Good2Go
We were impressed by Diffco's approach to the development process and how they engineer new solutions. They look ahead, learn about your product and strategy, and develop sophisticated, highly functional solutions.
5.0
Stas Tushinskiy
CEO & Co-founder at Instreamatic
Diffco supplied us with the skilled engineers we needed to meet our ambitious goals. Their account manager proactively addressed concerns, ensuring our expectations were met.
5.0
Razvan Spatariu
Senior Software Engineering Manager at Multiverse
Diffco's expertise and engineering approach increase the reliability and efficiency of our IoT infrastructure. Diffco has proven to be a reliable partner with exceptional expertise. I highly recommend their services.
5.0
David C Thompson
Senior Digital Initiatives director at ChemTreat
The quality and consistency of the team make Diffco stand out from other vendors.
5.0
Art Danielov
CEO at Flashgrid
They were communicative, consultative, and helpful. They went above and beyond all the way. What an amazing team. I will work with them again and again.
5.0
Don Markland
CEO at Accountability Now
Diffco turned our concept into a polished product from scratch, delivering on a tight timeline. Clear communication, organized project management, and a strong mix of creativity and technical expertise produced an app that exceeded our vision.
5.0
Mason Menin
Co-founder at WYA Group, Inc.
Their commitment to excellence ensures our platform remains robust and adaptable to our evolving needs. With their expertise, we've successfully enhanced our offerings, making our collaboration highly effective.
5.0
Pete Gualfetti
Head of Design and Integration at Good2Go
