AI agents that do
the work, not just
the talking.
SIZH designs, builds and runs agentic AI systems — custom agents, virtual sales and support agents, voice AI and process automation — that plug into your real tools and complete real work end to end.
Six ways agentic AI
earns its place.
We start from the workflow, not the model. Each engagement targets a specific, high-volume job where an agent measurably beats the status quo.
Custom AI Agents
Goal-driven agents that plan, call your tools and complete real multi-step work with human oversight.
Explore service 02 Revenue and serviceVirtual Sales & Support Agents
Always-on digital agents that answer, qualify, book and resolve across WhatsApp, web, voice and email.
Explore service 03 Grounded answersRAG & Knowledge Systems
Retrieval systems that answer strictly from your approved documents, with citations and no invention.
Explore service 04 Operations at scaleAgentic Process Automation
End-to-end business processes run by cooperating agents across the tools you already pay for.
Explore service 05 Conversational telephonyVoice AI Agents
Natural-sounding phone agents that handle calls, qualify callers, book appointments and log outcomes.
Explore service 06 Production foundationsAI Integration & Platform Engineering
The engineering under the intelligence: APIs, data pipelines, evaluation, security, cost control and monitoring.
Explore serviceSIZH Virtual Agent —
your digital sales &
support team.
One virtual agent trained on your business, live on WhatsApp, your website, voice and email. It answers in seconds, qualifies properly, books the meeting and resolves the repetitive work — then hands over to your team with full context.
Sales enquiry handling
Responds in seconds, qualifies against your criteria and books the demo before interest cools.
Customer support deflection
Resolves the repetitive majority from approved content and escalates the rest cleanly.
Virtual receptionist
Covers nights, weekends and peaks so no call or message is missed.
Appointment and service booking
Takes the booking, confirms it and sends the reminders.
- Trained on your catalogue, pricing, policies and documents
- WhatsApp, website chat, voice, email and social inboxes
- Lead capture, qualification and meeting booking
- Tier-1 support resolution with approved-source answers
- CRM, helpdesk and calendar synchronisation
- Human handover with a written conversation summary
Where agents pay for themselves.
Sales & Revenue
Agents that respond first, qualify properly and keep the pipeline moving.
- Inbound lead response
- Outbound prospecting agent
- Proposal and quote generation
Customer Support
Resolution rather than deflection, with clean escalation when a person is needed.
- Tier-1 ticket resolution
- Ticket triage and routing
- Order and delivery status
Operations & Back Office
The coordination work that quietly consumes your team's week.
- Invoice and document processing
- Data entry and reconciliation
- Procurement and vendor follow-up
HR & Recruitment
Hiring and people operations without the administrative drag.
- CV screening and shortlisting
- Interview scheduling agent
- Candidate communication
Finance & Compliance
Accuracy, evidence and audit trails — the areas where guessing is unacceptable.
- Accounts payable automation
- Collections and dunning agent
- Expense policy checking
Marketing & Content
Production capacity and research depth, inside your brand rules.
- Content production agent
- SEO research and briefs
- Product catalogue enrichment
We don't only build for clients.
We ship our own products.
RideOn
A ride-hailing and fleet management platform, now with agentic dispatch, driver support and demand intelligence.
View productUniBooker
A configurable multivendor service-booking marketplace with agentic onboarding, matching and support.
View productClassify
A classifieds marketplace with agentic listing creation, moderation and buyer-seller matching.
View productNeed engineers,
not a project?
Hire a dedicated AI, full-stack, mobile or DevOps engineer and buy hours in blocks. One week is our minimum — enough to ship a real prototype, not just a kickoff deck.
Sprint Week
1 week
Our minimum engagement. One dedicated engineer, full-time for a week.
Dedicated Month
4 weeks
A dedicated engineer embedded with your team for a full month.
Embedded Quarter
12 weeks
A dedicated engineer or small pod committed to your roadmap for a quarter.
Support Retainer
per month, ongoing
A reserved monthly block for maintenance, monitoring and improvements.
From one workflow
to production.
Agents fail when they are built as demos. We build them as systems — scoped, evaluated, monitored and owned.
Map the workflow
We pick one high-volume workflow, measure how it runs today and agree what success means in numbers.
Prototype on real data
A working agent on your actual data within weeks, so the decision is based on evidence rather than a pitch.
Harden and integrate
Guardrails, evaluation sets, escalation paths, permissions, logging and the integrations into your live systems.
Run and improve
We monitor quality, latency and cost, tune prompts and tools, and widen scope once the first agent is trusted.
Product thinking.
Production discipline.
RideOn
A connected ride-hailing system spanning customer journeys, driver operations and fleet administration.
02UniBooker
A multivendor booking foundation for businesses offering services through a shared marketplace.
03Classify
A structured marketplace that helps sellers publish listings and buyers discover relevant offers.
04Teatro Nacional Eduardo Brito
A public-facing digital experience for a nationally recognized performing arts venue.
What people ask us
before they start.
What is an AI agent, in practical terms?
An agent is software that is given a goal, a set of tools it may use and rules it must follow. Rather than answering one question, it plans the steps, calls your systems, and either completes the work or escalates with context. The difference from a chatbot is that an agent takes action.
How long does a first agent take to build?
A working proof of concept on your real data typically takes one to three weeks. A production deployment with integrations, evaluation and monitoring is usually four to ten weeks depending on how many systems it must touch.
Will the agent invent answers?
We build retrieval-grounded systems that answer from your approved sources with citations, and we test them against a fixed question set before launch. Where the agent is not confident, it says so and escalates rather than guessing.
Where does our data go?
We design the data boundary with you first. Options range from provider APIs with no-training commitments to deployment inside your own cloud account. Retrieval is permission-aware, so the agent cannot surface what a user may not see.
Can agents work with our existing systems?
Yes. Agents connect through APIs, webhooks, databases or RPA where no API exists. We have integrated CRMs, ERPs, helpdesks, calendars, payment systems and bespoke legacy platforms.
What does it cost to run?
Running cost is driven by conversation or task volume and the models used. We route each task to the cheapest model that passes your quality bar, cache aggressively and give you a cost dashboard, so spend stays predictable.
What is the minimum engagement for hiring a developer?
One week — a 40-hour block with a dedicated engineer. From there you can extend into monthly, quarterly or ongoing retainer arrangements.
Do we own the code?
Yes. You own all code, prompts, configuration and documentation we produce for you, and we hand over the repositories and infrastructure at the end of the engagement.