Customer experience agents
Tier-1 deflection, account lookup, refund and order-status workflows, and agent-assist for human reps. Wired into Zendesk, Intercom, Salesforce Service Cloud, or your own stack.
Diffco Services
Custom AI agents. Built for your systems.
Agents, copilots, and multi-agent systems that live inside your real stack: CRM, EHR, ERP, data warehouse, internal tools. Production-grade from day one, with guardrails, evals, and observability built in. You own the code, the data, and the IP.
Agents
Copilots
Multi-agent systems
Voice AI
Agents we build
Sales and revenue agents
Lead qualification, meeting prep, CRM hygiene, account research, proposal drafting, and follow-ups. Works with Salesforce, HubSpot, Pipedrive, or your own CRM.
Back-office agents
Document intake, invoice processing, claims review, contract triage, and vendor onboarding. Wired into NetSuite, QuickBooks, DocuSign, or your own ERP and CLM.
Knowledge copilots
Answers grounded in your docs, code, and tickets for engineering, HR, and policy teams. Built on Confluence, Notion, Slack, Jira, GitHub, or your own tools.
Voice agents
Inbound call handling, appointment booking, call summaries, outbound follow-ups, and live agent-assist. Connected to Twilio, your phone system, and your CRM.
Multi-agent systems
Agents that plan, delegate, use tools, and escalate to humans for complex multi-step operations. Built around your workflows, permissions, APIs, and existing stack.
Buy vs Build
Your processes are custom. Your data is custom. The right agent should be too. Off-the-shelf platforms ship fast but stop where your edge cases start.
Off-the-shelf platformCustom-engineered agent
Fit to your workflowFit to your workflowGeneric
Fit to your workflowBuilt to your exact process
Fit to your workflowBuilt to your exact processIntegration depthIntegration depthWhat the vendor supportsIntegration depthAnything your stack supports
Integration depthAnything your stack supportsData & IPData & IPShared with vendorData & IPYours
Data & IPYoursModel flexibilityModel flexibilityVendor-lockedModel flexibilityAnthropic · OpenAI · Gemini · Open models
Model flexibilityAnthropic · OpenAI · Gemini · Open modelsWhen it winsWhen it winsGeneric use case, nice demoWhen it winsUnique workflows, regulated data, production scale
When it winsUnique workflows, regulated data, production scale
Diffco AI Methodology
A delivery method built for the AI era, not retrofitted to it.
Code is the cheap part now. Knowing what to build first, which foundation will hold at ten times the users, and what not to build at all is where projects are won.
Senior engineers make those calls. More than 100 AI agents per engineer do the building, around the clock, on our own delivery platform built on Claude Code and OpenAI Codex. A living plan with automatic checks keeps every agent inside the lines.
- You click through your product before we build it
- We bring you the parts of the job you never put into words
- Every architecture decision is written down with the alternatives
- Everything traces back to a goal, which is what makes change fast
- People make the decisions, and AI agents build inside them
- Before release, a person watches it work
- The whole project
is a document you can read
- Read the full methodology
What we bring
Tech stack
AI models
Anthropic
OpenAI
Gemini
Hugging Face
Mistral
Qwen
Grok
Kimi AI
TypeSafe AI
Open weight models
Frameworks
LangChain
LangGraph
LlamaIndex
CrewAI
AutoGen
Voice
ElevenLabs
Deepgram- OpenAI Realtime
Whisper
Twilio
Retrieval
Pinecone
Weaviate
pgvector
Qdrant
Runtime
Vercel AI
Cloudflare Workers AI
AWS
GCP
Azure
Evals & Obs
- LangSmith
Helicone
Arize
Custom eval harnesses
How we build
Seven stages, with a person signing off at every gate.
Every project runs through Production-Ready AI Engineering: seven stages, senior engineers directing 100+ AI agents, a check on every save, and a person signing off at every gate.
- 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
Human + 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, with 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.
Every later change re-enters the same loop, and nothing skips a step.
Read the full methodologyEngagement models
Ways to work with us
Dedicated Team
Human-led, AI-assisted · Monthly commitment
A senior squad reserved for you on a monthly basis, using AI to move faster. Best for evolving products and complex domains. You get:
A senior team that’s always yours, never reassigned mid-project- Scope and priorities you can flex sprint by sprint
- Predictable monthly spend with no padding for risks you may never use
- Velocity from a team that already knows your codebase
Agent-Led Delivery
AI-built, senior-directed · Monthly commitment
Most of your monthly budget goes into AI agents, with a lean senior team directing and reviewing their work. You get:
- Maximum of your budget working on the build, not on headcount
- Working software at the end of every short sprint
- A preview of what each change touches before it’s built
- Sign-off on every release against standards agreed before coding starts
Why teams choose Diffco
Senior, dedicated teams
Senior experts on every project: AI/ML and software engineers, product and UX designers, and project and product managers. Assigned to you, never reassigned mid-project.
Streamlined development process
Agile delivery on Production-Ready AI Engineering, from early PoC to production rollout. Clear gates, your sign-off at each one, so you always know what’s happening and why.
Transparent billing
You always know:
- What you’re paying for
- How time is spent
- How costs connect to delivered outcomes
Audit-ready from day one
Every agent action is logged and every decision is traceable. SOC 2-aligned practices, HIPAA- and GDPR-aware delivery, and full IP assignment.
Clear communication and detailed reporting
From the first workshop to post-launch optimization, you get:
- Direct access to the Diffco team
- Regular progress updates and demo builds
- Clear documentation of decisions, architecture, and metrics
Own it, or let us run it
Knowledge transfer, runbooks, and documented, reversible cutovers if your team takes the keys. Ongoing support, monitoring, and improvements if you’d rather we operate it.
Our clients’ success stories
Success stories of our clients
We set up AI-native development across RedTrack’s ad-tracking platform
We built the AI Moderator that runs Maze’s user research interviews
We’re building Raivan — an AI-powered next-gen veterinary PMS for M3 VIA
We built VetLeo — an AI companion pet owners ask anything about their pet
We set up AI-native development across RedTrack’s ad-tracking platform
We built the AI Moderator that runs Maze’s user research interviews
Explore our
amazing case studies
Let’s build something
great together.
Need other services?
AI & ML DevelopmentML, RAG, computer vision, and copilots, engineered to production standards with Production-Ready AI Engineering.
Team AugmentationSenior engineers who join your team, fit your workflow and culture, and start shipping from week one.
Custom Software DevelopmentWeb apps, platforms, and internal tools, built in weeks instead of months, from PoC to production.
Mobile DevelopmentNative iOS and Android apps, with AI features built in, designed for real users from the first release.
Web DevelopmentModern websites and web apps engineered by senior teams directing AI agents.
Frequently Asked Questions
Platforms win when your workflow is generic. Custom agents win when your workflow is your edge, integrations are deep, or your data can’t leave your perimeter. We help you decide in discovery, and we’ll tell you to buy the platform if that’s the right call.
Whichever fits the task: Anthropic, OpenAI, Gemini, Mistral, Qwen, and open-weight models, plus Azure OpenAI and AWS Bedrock. We pick on cost, latency, and risk.
Yes. We’ve shipped agents in healthcare, fintech/regtech, and European-data contexts. Compliance designed in from day one, not patched later.
You do. Full IP assignment is standard: code, prompts, fine-tunes, integrations.
4–8 weeks for a production pilot after a 1–2 week discovery. Full rollout depends on your change-management pace.
That’s one of our most common engagements. Short audit, find the blocker (usually integration, evals, or compliance, rarely the model), ship a path forward.
Yes. AI Agents Development is one of three lead services. We also build custom software, mobile apps, and web platforms, with or without AI. Check it here.
