If you’re running a business in London and you’re sick of tech “experts” who talk in circles and leave you holding the bill for things that never work, you’re in the right place.
At Pearl Lemon Consulting, we work with operations leads, project managers, directors, and business owners who are tired of delays, downtime, and consultants who read from manuals instead of solving problems.
We’re IoT consultants based in London. That matters. We’re close enough to show up, meet face-to-face, walk your premises, see the actual environment, and figure out what’s going wrong.
This isn’t about workshops or storyboards. This is about making machines talk, systems talk, and money stop falling through the cracks.
Schedule a consultation — Let’s sort it out before another quarter goes to waste.
Our Services
Below is what we do. No fluff. No TED Talk nonsense. Just detailed work that fixes problems.
IoT System Architecture & Engineering
Problem: You’re sitting on 4 or 5 disconnected systems—maybe a fleet management tool, some smart sensors, a legacy CRM, and a third-party API—and none of them communicate.
What we do:
We design machine-to-machine (M2M) architecture that gets your systems working together. Using MQTT, CoAP, or HTTP/REST protocols—depending on your infrastructure—we structure your IoT system to handle asynchronous communication, reduce packet loss, and prioritise critical events.
How it helps:
You gain operational visibility, real-time data sync, and zero reliance on your staff playing ‘middleman’ between broken tools.
IoT Security Audits & Compliance
Problem: Your devices are online—but vulnerable. One brute-force attack and your customer data could be scraped by a kid in his bedroom.
What we do:
We run protocol-specific threat simulations, firmware inspections, and TLS/SSL handshake integrity checks. We lock down MQTT brokers, secure edge devices, and segment your network to isolate attack vectors.
How it helps:
You avoid regulatory fines, reputational damage, and downtime. 60% of businesses hit with a serious IoT breach go bankrupt within 6 months. We don’t let that happen to you.
Sensor & Device Integration
Problem: Your devices aren’t reading, syncing, or they’re throwing inconsistent data. Worse? The manufacturer isn’t answering support calls.
What we do:
We configure and calibrate sensor networks, edge devices, and hardware endpoints using embedded firmware diagnostics and serial protocol analysis. Whether it’s Zigbee, Z-Wave, LoRaWAN, or NB-IoT—we get it all functioning like one unit.
How it helps:
You stop getting false positives, missed alerts, and junk data clogging your analytics platform. You start getting consistent, trustworthy feedback loops.
Predictive Maintenance Systems
Problem: Equipment breakdowns are bleeding you dry in repairs, callouts, and lost productivity.
What we do:
We install sensors that monitor thermal, vibrational, acoustic, and pressure metrics, and we feed that data into AI/ML models that trigger alerts before failure occurs. Our setups use anomaly detection based on historic baselines, not blind date ranges.
How it helps:
Clients reduce downtime by up to 48%, with repair costs falling by 35% on average within 6–9 months.
Smart Energy & Utilities Monitoring
Problem: Your power bills are all over the place. Your usage reports don’t match your actual operating hours.
What we do:
We set up power metering systems that measure per-unit consumption at the device level using sub-metering. Then we deliver usage reports by kilowatt-hour, tracking phantom loads, power factor, and reactive load.
How it helps:
You spot leaks, waste, and inefficiencies. Most commercial buildings waste 15–30% of their energy output, and don’t even know it.
Fleet & Asset Tracking Systems
Problem: Assets disappear. Fleet costs spike. No one knows where anything is.
What we do:
We deploy GNSS (Global Navigation Satellite Systems), BLE beacons, RFID, and NB-IoT trackers, layered with geofencing rules and tamper alerts. All fed through a dashboard that updates every 5 seconds.
How it helps:
You start tracking loss, shrinkage, route deviation, and idle time in real-time. Clients in logistics cut fuel usage by 17% and improved delivery KPIs within 3 weeks.
Data Analytics & Visualisation
Problem: You’ve got data, but it’s spread across five tools and makes no sense.
What we do:
We collect, clean, and structure your data using ETL pipelines that connect directly from your IoT infrastructure to platforms like AWS IoT Analytics, Azure Time Series Insights, or custom ELK stacks.
How it helps:
You see only what matters. Thresholds, deviations, alerts. Less noise. Better control. Actionable metrics—delivered daily, weekly, or on demand.
IoT Proof of Concept (PoC) Builds
Problem: You’ve got an idea. But you’re afraid to greenlight £100k until you know if it’ll even work.
What we do:
We run PoC builds using low-volume hardware, quick-swap dev boards (Raspberry Pi, Arduino, ESP32), and sandbox cloud environments. Rapid test, refine, confirm.
How it helps:
You validate ideas fast. No bloat. No waste. Most PoCs are completed within 4–6 weeks.
Why Work With Us
London-based
You get on-site visits. Faster turnaround. No timezone nonsense.
Tech + Business
We don't just know IoT—we know operations. That’s how we keep projects on budget, on track, and aligned with ROI.
Not guessing
We’ve helped reduce energy usage by 27% in a 15-location retail chain. We’ve cut machine downtime by 43% in a metalworks plant in East London. We’re not winging it.
Direct
We don’t send “account managers.” We send engineers.
Frequently Asked Questions
We use open-standard protocols like MQTT, OPC-UA, and CoAP, and where necessary, we implement custom middleware using Node-RED, JavaScript bridges, or Python microservices.
TLS/SSL encryption, HMAC authentication, secure boot loaders, OTA firmware integrity checks, and network segmentation using VLANs and firewalls.
Yes. We deploy and manage LoRa gateways, configure chirp stacks, and manage payload encoding/decoding for low-power long-range use cases.
We follow a modular architecture with microservices running on containerised environments (Docker, Kubernetes) that scale horizontally.
Yes. We reverse-engineer communication protocols (Modbus, CANbus, BACnet), interface with PLCs, and retrofit IoT capability without interrupting operations.
IoT audit & planning: 2–4 weeks
PoC builds: 4–6 weeks.
Full rollout: 3–6 months (depends on scale and integrations)
We’ve delivered projects using AWS IoT Core, Azure IoT Hub, ThingsBoard, Grafana, PowerBI, and custom dashboards built with React + Node.js.
Let’s Fix What’s Slowing You Down — Book a Call Now
Most IoT consultants will waste your time talking about IoT.
We’d rather just show up, figure out what’s broken, fix it, and get you back to doing business.
If that sounds like what you’re after—
Let’s talk. Book your no-fluff consultation today.
