Custom AI Development Services for Startups Leading the Future

Trusted by global startups, our AI development services are a blend of tailored AI, machine learning, and intelligent systems. We are a Claude Service Partner providing bespoke AI development solutions based on your workflows, not generic templates.

30-minute call · No pitch, no obligation · You leave with a scoped, costed use case

Trusted by 100+ businesses and AI-native startups

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Custom AI Development vs. Off-the-Shelf AI

Custom AI development is building an AI system around your own data, workflows, and systems instead of buying an off-the-shelf tool. It runs from use-case discovery and model selection through building the application, connecting it to your systems, and keeping it reliable in production. You own the result.

When Does Custom Earn Its Cost?

  1. The workflow is yours alone, and no product on the market covers it.
  2. The data the system needs cannot leave your systems or your security perimeter.
  3. The workflow is a real differentiator rather than a commodity process.
  4. Generic tooling creates more friction and rework than it removes.
  5. You need to own the code, the models, and the IP outright.

The Numbers Behind Our Expertise

100+

Projects Shipped

10+

Years of Expertise

50+

Global Clients

Claude

Certified Service Partner

Our AI Development Services Built Around One Workflow at a Time

Working across 10+ verticals, Pinnasys spotlights in-depth knowledge and experience to deliver custom AI development by industry. Every AI development service is tailored to data structures, regulatory requirements, and operational workflows.

Your First AI System Live in Weeks

Start with one high-value workflow on a fixed scope. In a 30-minute call we'll scope it, agree the number it has to move, and show you the path to production.

Book a Discovery Call

Custom AI Systems We've Shipped to Production

Built on real data, running on real systems, measured against a number agreed before the build.

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Your Digital Workforce That Never Clocks Out

168 hrs

Operation Weekly

4x

Human Capacity

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Insurance Claims Settled in Hours, Not Weeks

90%

Queries Automated

40%

Support Cost Reduction

sproutAi case study
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AI engine that turns cold email into booked meetings

400

ROI Increase

30%

ROI Increase

instantly case study
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AI receptionist that never misses an inbound lead

Booking Capture Rate

0

Missed Calls

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Every Meeting Followed Up in Minutes, Not Hours

10+ hrs

Saved Per Advisor Weekly

50%

Less Manual Follow-Up

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These Are Numbers We've Already Moved

TIME

90%

of manual work automated

COST

40%

lower cost to run the same process

EFFICIENCY

10x

the output from the same team

Book a Discovery Call

Domain-Specific AI Development that Fits Your Industry and Vision

We shape our AI development solutions around the sectors we know, from the use cases down to the governance, because a claims workflow and a production line do not run the same way. Here is what we build in each.

Read claims documents as they land, compare and quote policies, and give underwriters the research they need.

Match transactions, flag odd payments, and take new clients through KYC without the manual chase.

Book patients in, pull up records, and chase prior approvals, with a person signing off what matters.

Watch the line, spot faults from images, and forecast what breaks before it stops production.

Track shipments, deal with delays, and plan the next dispatch on live data.

Run orders, tidy product data, and answer the easy tickets so your team keeps the hard ones.

Research leads, score them, write the outreach, and run the campaign end-to-end.

Answer student questions, handle enrolment, and draft course material teachers can edit.

Read contracts, pull the clauses that matter, and draft the first version for a lawyer to review.

Qualify tenants and leads, book repairs, and push leases through without the paperwork drag.

Automate lab reports, run digital inspections, and keep remote sites compliant. This is what we built for Remote WTS.

Answer from your own knowledge, resolve what it can, and hand a person the rest with full context.

Handle bookings, plan trips, and look after guests around the clock.

Clean up product data, turn quotes into orders, and sort supplier queries as they arrive.

Pinnasys – Claude-Certified AI Development Company

Most AI builds stall between the demo and the deployment. Pinnasys is set up to close that gap, with certified Claude engineers, fixed scope, and outcomes you can measure.

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A Claude Service Partner with a Certified Team

We are an Anthropic Claude Service Partner, and our engineers hold Claude Certified Associate, Developer, and Architect credentials.

Production Is the Deliverable

Our work is judged on systems running on your live data, doing real work, and staying reliable after launch.

Measurable ROI, Agreed up Front

We capture your baseline before we write code and report against that number, so the return is provable rather than a matter of faith.

Senior Engineers on Your Build

You work directly with the people writing the code. No account layer, no junior bench, no outsourced delivery.

Built for the Mid Market

Scoped, accessible projects for mid-market companies and AI-native founders, without enterprise minimums.

You Own Everything We Ship

The data, the code, the models, and the delivered solution are yours. IP assignment is in every contract, so your team can run it or evolve it without us.

Fixed Scope and Price

We scope and cost the work before anyone writes code, so you know the number before you commit. No open-ended billing, no scope drift.

The First Build Is Where the Partnership Starts

Most of our clients start with one workflow, prove the number, and expand from there. We stay through production and into the next build, so someone is accountable for your AI roadmap and not just a deliverable. Book a 30-minute call and we'll map where to start.

Book a Discovery Call

The Capabilities Behind Our AI Development Solutions

Services are what you engage us for. These are the technical competences that power them, and they cut across every service above.

Generative AI & LLMs

Generative AI software development for assistants, copilots, drafting, and summarisation, grounded in your own content so answers are traceable to a source.

RAG & Retrieval

Pipelines that put your documents, records, and knowledge in front of the model at the moment it answers, with your permissions respected.

Document Intelligence

Contracts, claims, invoices, and forms turned into structured data your systems can act on, with every extraction traceable to the page.

300M+ documents processed

Machine Learning

AI and machine learning development for forecasting, scoring, classification, and anomaly detection, where a measurable, predictable model beats a language model.

Computer Vision

Object detection, quality inspection, and visual data analysis, turning images and video into decisions.

Intelligent Process Automation

Rules and AI working together, so predictable steps stay deterministic and auditable and only the judgement calls reach a model.

Agentic & Orchestration

Agents that plan and act, and the orchestration layer that coordinates several of them across your systems.

100+ agents deployed

Integration & MCP

Connecting AI to the CRM, ERP, warehouse, and internal tools you already run, on open standards so it stays portable.

MLOps & Evaluation

Deployment pipelines, evaluation suites against real cases, and monitoring for drift, cost, and failure patterns after launch.

The Tech Stack Behind Our AI Development Services

Model- and framework-agnostic, chosen per use case. Claude is where our deepest expertise sits as a Claude Service Partner. Our AI software development services use MCP to keep integrations open. This custom AI development approach avoids locking you to one vendor.

Anthropic ClaudeAnthropic Claude
OpenAI GPTOpenAI GPT
Google GeminiGoogle Gemini
Meta LlamaMeta Llama
Mistral AIMistral AI
CohereCohere
Hugging FaceHugging Face
OllamaOllama
vLLMvLLM

The Production Path for Custom AI Development

Our framework for getting AI live and keeping it there. Every stage ends with something you can check, and each one has to earn the next.

Qualify the Work

  • Map the workflows and rank them by value and feasibility
  • Say plainly where custom AI fits and where a product or simpler automation wins
  • Agree the one workflow worth starting with

Set the Baseline

  • Measure what the workflow costs you today, in hours, spend, or error rate
  • Agree the number the system has to move
  • Define what success and failure both look like

Design with Guardrails

  • Choose the architecture, the models, and the data the system will use
  • Set where a human signs off and what the system may never do alone
  • Plan access, audit trails, and the security perimeter

Build One Workflow

  • Build narrow and deep on the workflow you chose
  • Connect it to your real systems inside your security perimeter
  • Wire in evaluation and observability as we build, not after

Prove It

  • Run it against real cases, edge cases, and failure modes
  • Report the result against the number we agreed in stage two
  • Fix what the evidence says to fix

Own It & Expand

  • Hand over the solution, the code, and the documentation
  • Monitor performance, behaviour, and cost in the open
  • Expand to the next workflow only once this one has earned it

Our Compliance Framework Behind Custom AI Development

Custom AI runs on your real data and acts on your live systems, so trust is the whole game. Five pillars govern every build.

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01

Data Privacy & Protection

You keep ownership of your data throughout, and you own the code, the models, and the delivered solution. Encrypted in transit and at rest. We do not train shared models on your data.

GDPR-awareYour data, your IP
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02

Security & Risk

Least-privilege access so a system touches only what a task requires, a secure development lifecycle, and prompt-injection defences on anything that reads outside input.

Aligned to ISO 27001Aligned to NISTiso 42001
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03

AI Governance

You set the autonomy level. Sensitive actions need human approval, every decision is logged and traceable, and evaluation runs continuously against real cases.

Human-in-the-loopAudit trails
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04

Standards

We build framework-agnostic on open standards like MCP, so the solution stays portable. A standard NDA and clear IP assignment come with every build.

MCPNDA from day one
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05

Cloud Trust

Systems run inside your security perimeter with scoped credentials on your cloud, so your team can run or evolve them with or without us.

Your perimeterNo lock-in
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01

Data Privacy & Protection

You keep ownership of your data throughout, and you own the code, the models, and the delivered solution. Encrypted in transit and at rest. We do not train shared models on your data.

GDPR-awareYour data, your IP
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02Security & Risk
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03AI Governance
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04Standards
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05Cloud Trust

Your Data Never Leaves Your Perimeter

We work under an NDA from the first conversation, deploy inside your cloud, and hand over the code, the models, and the IP. Ask us anything about how your data is handled before you commit to anything.

Book a Discovery Call

Direct Access to the Senior Claude-Certified Team Who Build Your System

The same small pod scopes your use case, builds the agents, and stays with you through production.

Claude certified team

Claude Certified Architect

Designs the system, the model choice, and the guardrails it runs inside.

Claude Certified Developer

Builds it, plus the evaluation suites that prove it works before launch.

Claude Certified Associate

Certified on Claude foundations, prompting, and safe deployment.

AI

Hire AI Engineers

Build custom AI applications, automation workflows, and the systems that connect them to your business.

  • AI system architecture
  • Workflow automation
  • Enterprise integration
  • Production deployment
LLM

Hire LLM Developers

Build assistants, copilots, and retrieval pipelines grounded in your own content, with answers traceable to a source.

  • RAG pipelines
  • Conversational AI
  • Prompt engineering
  • Evaluation suites

Hire AI Agent Developers

Deploy agents that plan, decide, and act across your systems inside guardrails you set.

  • Agentic AI
  • Multi-agent systems
  • Orchestration
  • Guardrails and approvals
ML

Hire MLOps Engineers

Get AI into production and keep it healthy, with the monitoring and governance that keeps it trustworthy.

  • MLOps pipelines
  • Model observability
  • Model governance
  • Cost optimisation

How We Are Globally Recognized

From Anthropic-certified engineers to AWS-certified cloud expertise and top Clutch rankings driven by verified client reviews, our credentials speak for themselves. Every achievement is independently verifiable, so you can trust the expertise behind every solution we deliver.

10+ Clients of 5+ Years award

10+ Clients of 5+ Years

Battle tested over services

Top Rated Plus on Upwork award

Top Rated Plus on Upwork

100% Job Success

300M+ Docs Processed award

300M+ Docs Processed

Across client workflows & AI system

100+ Agents Deployed award

100+ Agents Deployed

Across client workflows & AI systems

What Our Clients Say About Our AI Development Solutions

Reviews from the founders and teams we have built for, quoted exactly as they wrote them.

"The Pinnasys team was excellent to work with throughout our custom AI development project. Professional, responsive, and consistently delivered high-quality work. Their technical skills, communication, and attention to detail exceeded our expectations."

Zach Christensen

Owner & President, Gillette Agency, Inc

Your Workflow Is the One That Matters

You have just read about theirs. Yours is the one we want to hear about. Tell us the workflow costing your team the most time, and we will tell you whether AI is the right fix, what it would take, and what it would cost.

Book a Discovery Call

Custom AI Knowledge Center

Practical guides to help you decide what to build, and whether to build at all.

Explorer, Builder, Scaler, or AI Leader?

Six questions, a few minutes, and a clear view of where your business actually stands. The scorecard rates you across strategy, data, process, technology, talent, and governance, then gives you a score and the next best actions.

Takes

6

questions, a few minutes

Scores

6–30

across six maturity pillars

Gives

4

levels, with actions for yours

Book a Discovery Call

Frequently Asked Questions About Custom AI Development

The questions we hear most from mid-market teams and AI-native founders weighing up a custom build.

Custom AI development is the design and build of AI systems around your own data, workflows, and systems, rather than buying an off-the-shelf tool. It covers use-case discovery, model and architecture selection, building the application, integrating it with your systems, and running it in production with evaluation and governance. The output is a system that fits how your business actually works, and that you own.

An AI development company designs, builds, and runs AI systems for other businesses. That covers working out which problem is worth solving, choosing the models and architecture, building the software, connecting it to the systems you already run, and keeping it reliable once it is live. A good one also tells you when you do not need a custom build.

Fixed scope

We scope and price each project before any code is written, so you get a fixed number rather than an open-ended range. Most clients start with one workflow on a fixed-scope pilot, which keeps the first commitment small and the return measurable. Cost follows the number of workflows, the systems we integrate with, and how ready your data is. You will leave a 30-minute call with a scoped, costed use case.

A well-scoped first system usually reaches production in weeks, not quarters, because we start narrow and deep on one workflow. Larger programmes run longer, but they run as a series of scoped stages rather than one long build, so you see a working result early and decide whether to expand.

Yes. You own the data, the code, the models we build for you, and the delivered solution. We work under an NDA from the first conversation, and IP assignment is part of every contract. There is no scenario where you need our permission to keep running your own system.

Yes. Most of our work connects AI to systems that already exist, including CRMs, ERPs, data warehouses, ticketing, and internal apps. We build framework-agnostic on open standards like MCP, and we deploy inside your cloud and your security perimeter rather than moving your data somewhere new.

An API gives you a model. A product gives you someone else's workflow. A custom build gives you a system that knows your data, follows your rules, connects to your tools, and is measured against your numbers. Off-the-shelf is the right answer more often than vendors admit, and we will say so if it fits your case. Custom earns its cost when your workflow is a real differentiator or no product covers it.

You do not need perfect data. Most useful builds start from messy, inconsistent, or partly structured data, and part of the work is assessing what you have and preparing it. What matters more is that the data is accessible, that someone owns it, and that we can agree what good output looks like. Our discovery stage exists to establish exactly this before anything is built.

We qualify the use case first and capture a baseline, so there is a number to judge the result against. Then we ship one workflow on a fixed scope and measure it against that baseline. If the evidence says it did not work, you get an honest account rather than a bigger invoice. That is why the first commitment is deliberately small.

We ground outputs in your own sources with retrieval, constrain what the system is allowed to do and say, and run evaluation suites against real cases and edge cases before go-live. In production we monitor behaviour, cost, and failure patterns continuously. Where the risk of a wrong answer is high, a person approves the action rather than the system acting alone.

Your data stays yours, encrypted in transit and at rest, and we do not train shared models on it. Agents and applications run inside your security perimeter with least-privilege access, so a system only touches what a task requires. Access is logged and auditable.

You choose. Because you own the code and the documentation, your team can run it without us. Most clients keep us on for monitoring, evaluation, and expansion to the next workflow, but that is a decision you make on the evidence, not a dependency we design in.

Ask for systems running in production, not demos. Ask who owns the code and the data afterwards. Ask what number the work is measured against, and whether they capture a baseline before building. Ask whether the people who scope it are the people who build it. Then check whether the answers are specific enough to hold them to.

Ready to Find Out Where AI Pays in Your Business?

A single conversation can save you months of guesswork. Book a call and get a clear use case, a grounded ROI estimate, and a candid answer, even if the answer is no.

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  • Response within 1 business day
  • You own the roadmap either way

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