Google Analytics

Numbers you can make decisions with.

Google Analytics should tell you which marketing works, where people drop off and what to do next. Too often it is half set up, counting the wrong things and quietly disagreeing with every other report. We implement GA4 and Google Tag Manager properly, track the events that matter to your business, respect consent and build reporting that your whole team can read, so decisions start from numbers people believe.

Google Analytics, set up to be trusted

Your Google Analytics property

We start with an audit of your GA4 property and Tag Manager container, from data streams, events and key events to consent, filters, integrations and reports. You see clearly what is accurate, what is missing and a prioritised plan to fix it.

An AI agent for your Google Analytics

Every analytics setup we manage comes with an agent that reads your GA4 data around the clock. Ask why a number moved, which channels drive real customers or whether tracking is working, and get a clear answer from live data in plain language.

It spots anomalies, checks tracking and drafts reports in minutes. Our team reviews every finding before it reaches a decision, and no tag, event or setting changes without a person signing it off.

You
Why did conversions drop last week?
The drop is limited to one checkout step on mobile, and it started the day a site update went live. Tracking is still firing correctly, so I have flagged the page for the web team to investigate.
You
Which channels bring visitors who come back and buy?
Email and organic search bring returning buyers more often than paid social, which tends to introduce new visitors. I have drafted a short summary of the paths that lead to purchases for you to review.
Ask about your Google Analytics

Why teams trust their Google Analytics with Vertical

Analytics is only useful when people believe it. We bring technical tracking skills and a marketer's view of what the numbers should answer.

Accurate from the start

Careful implementation and testing mean your data reflects what really happens on your site, not a rough approximation.

Built around your questions

We track what helps you decide, rather than everything that can be measured, so reports stay focused and useful.

Privacy respected

Consent mode and sensible data settings keep measurement aligned with privacy rules and your customers' choices.

Joined up with your channels

Because we also run your advertising, email and website, tracking supports every channel and attribution stays consistent.

AI with human judgement

Agents spot anomalies and summarise trends at speed. Our analysts decide what the data means and what to do about it.

Documented and maintainable

Clear naming and documentation mean your team can understand, trust and extend the setup long after launch.

See how our clients are changing their businesses

FaceGym
50% more purchases, 41% more bookings
Canagan
900% email revenue growth
Tribal
74.3% more conversion value
McAdams
148% more email revenue
Decant Group
477% more leads
Moskovskaya
5,560% follower growth, 550% ROAS
Elit Vodka
New identity, 400% more engagement
Aesthetic Intelligence
3,000+ leads per webinar, 3,200% ROI
Decant Group
“Vertical transformed the way we approach digital marketing. They helped us simplify a complex investment offer, build high-performing funnels and scale campaigns with confidence. The results speak for themselves with lead volume, quality and efficiency all improved dramatically. They’ve been a true partner in our growth.”
Robbie Heald
VP Growth, Decant Group
477%
more leads

Full-funnel paid media, creative and bespoke landing pages that made whisky and fine wine investment simple to say yes to.

View case study

A powerhouse in a Power Station.

Vertical is a small, senior team of strategists, creatives and performance marketers based at Battersea Power Station in London, with clients and colleagues around the world. Strategy, creative and performance come from one team, with AI built into how we plan, make and measure.

The building has stood on the Thames for the best part of a century, and for fifty years it kept London’s lights on. We like the precedent.

Google Analytics questions, answered

What does a Google Analytics agency do?

A Google Analytics agency helps you collect accurate data and turn it into useful decisions. At Vertical that covers audits, GA4 implementation, Google Tag Manager, measurement planning, event and ecommerce tracking, consent mode, integrations with advertising tools and reporting. Because we also run paid media, email, SEO and websites, we set up analytics around how your marketing really works, so the numbers support every channel rather than living in isolation.

What is GA4 and how is it different?

GA4 is the current version of Google Analytics. It measures everything as events, which makes it more flexible across websites and apps, and it reports on key events rather than the goals used in older versions. It also offers deeper links with Google Ads and BigQuery. The flexibility means setup matters more than ever: without a clear plan, GA4 can collect lots of data that answers very few useful questions.

Why do we need Google Tag Manager?

Google Tag Manager lets you manage analytics and advertising tags in one place without editing your website code for every change. It makes tracking faster to update, easier to test and safer to maintain. A well organised container, with clear naming and version notes, means your team can see exactly what is running on the site and why. We set it up properly and document it, so it stays tidy over time.

What events should we track?

That depends on what matters to your business. Most sites benefit from tracking form submissions, sign-ups, key clicks, file downloads and video engagement, while ecommerce sites need the full journey from viewing products to purchase. We start by agreeing the questions you want answered, then write a measurement plan that defines each event, its parameters and which ones count as key events, so tracking stays focused and consistent.

What is consent mode and do we need it?

Consent mode adjusts how Google tags behave based on whether visitors accept cookies. When consent is given, tags work normally; when it is declined, tags hold back and Google can model some of the missing data. If you advertise with Google and use a consent banner, it is an important part of a compliant setup. We configure it with your banner, test it carefully and check it as rules and tools change.

Why do our numbers not match our other tools?

Small differences between GA4, advertising platforms and your sales system are normal, because each counts visits, clicks and conversions differently and attributes credit in its own way. Large differences usually point to setup problems, such as duplicate tags, missing events, broken cross domain tracking or consent settings. We investigate the causes, fix what can be fixed and document what remains, so your team understands which number to use for which decision.

Can you connect Google Analytics to Google Ads and BigQuery?

Yes. Linking GA4 with Google Ads lets you share key events and audiences, so campaigns can optimise from your analytics data. Linking with Search Console brings organic search queries into view, and exporting to BigQuery gives you raw data for deeper analysis or combining with other sources. We set up the links that suit your needs, check that data flows correctly and make sure each tool is reporting the same events.

Do you build dashboards and reports?

Yes. We build reports in GA4 and dashboards in Looker Studio around the questions your team actually asks, from daily performance checks to monthly reviews for leadership. Definitions are agreed up front, so everyone reads the numbers the same way. We keep dashboards focused rather than crowded, and we review them with you regularly, so they stay useful as your marketing and priorities change.

How long does it take to set up Google Analytics properly?

A focused setup for a straightforward website can be completed quickly, while larger sites with ecommerce, several domains, apps or complex consent requirements need more time. We agree a clear plan covering the audit, measurement plan, implementation, testing and reporting, so you know what to expect at each stage. Time spent on planning and testing pays back quickly in data that people trust and use.

How do we get started with Vertical?

Start with a conversation about what you need your data to tell you. If you already have GA4 and Tag Manager, we usually begin with an audit of your property, container, consent setup and reports, then share a prioritised plan. If you are starting fresh or rebuilding, we scope the measurement plan and implementation. Either way, we will tell you plainly what needs fixing first and why.

Bring us the ambition. We’ll build the system behind it.