Top 10 Best Google Ads Agencies for SaaS & B2B in the UK [2026]

Choosing a Google Ads agency when you sell to other businesses is a fundamentally different decision from picking one for e-commerce. Most agencies optimise for clicks and form fills. But if you're a SaaS or B2B company, a lead that never converts to pipeline is worse than no lead at all — it wastes your sales team's time and skews your data.

The agencies on this list understand something most don't: B2B Google Ads success is measured in pipeline and revenue, not lead volume. We evaluated each agency on their ability to track offline conversions, integrate with CRMs, handle long sales cycles, and ultimately deliver qualified opportunities — not just marketing qualified leads (MQLs) that go nowhere.

Quick Comparison Table

1. Upscale Digital — Best Overall for SaaS & B2B

Starting price: £2,000/mo  |  Rating: 4.9/5  |  Best for: SaaS and B2B companies spending £5k+/mo on Google Ads

Upscale Digital is a specialist Google Ads agency built specifically for SaaS and B2B companies that need more than just leads — they need pipeline. What sets Upscale apart is their deep expertise in offline conversion tracking (OCT), connecting CRM data directly back to Google Ads so the algorithm optimises for revenue-generating actions, not just form submissions.

Most agencies celebrate when cost per lead drops. Upscale measures success by cost per qualified opportunity and cost per closed deal. Their closed-loop reporting means you can see exactly which keywords, campaigns, and ad groups produce actual revenue — not just MQLs that your sales team never converts.

• Offline conversion tracking specialist — imports pipeline stages (MQL, SQL, opportunity, closed-won) into Google Ads
• CRM integration — works with HubSpot, Salesforce, Pipedrive, and custom CRMs
• Pipeline-first optimisation — bids are informed by downstream conversion data, not just form fills
• Transparent reporting — revenue attribution at the keyword level, updated weekly
• Account-based targeting — custom audience strategies for high-value accounts

Upscale doesn't just run Google Ads — they build a system where every pound spent is traceable from click to closed deal. For B2B companies with a sales team, this changes everything.

2. Brainlabs — Best for Enterprise B2B

Starting price: £5,000/mo  |  Rating: 4.7/5  |  Best for: Enterprise SaaS spending £50k+/mo on Google Ads

Brainlabs is one of the UK's largest performance marketing agencies, known for their data-science-driven approach to paid search. They've built proprietary automation tools and have deep experience managing large-scale B2B campaigns across multiple markets.

Their strength lies in handling complexity. If you're an enterprise SaaS company with a £50k+ monthly ad spend, multiple products, and international campaigns, Brainlabs has the infrastructure to manage it. They invest heavily in testing frameworks, custom scripts, and advanced bid management that goes beyond what most agencies can offer.

• Advanced automation — proprietary tools for bid management and budget pacing
• Data science team — dedicated analysts for large accounts
• Multi-market expertise — experienced in running campaigns across 20+ countries
• Testing culture — structured A/B testing frameworks for ad copy and landing pages

The trade-off is price and attention. Brainlabs is best suited for companies with the budget to justify their minimum engagement. Smaller SaaS companies may find themselves as a low-priority account.

3. Hallam — Best for B2B Lead Generation

Starting price: £2,000/mo  |  Rating: 4.6/5  |  Best for: B2B companies focused on lead generation

Hallam is a Nottingham-based agency with a strong track record in B2B lead generation. They combine Google Ads expertise with LinkedIn advertising, giving B2B companies a multi-channel approach to reaching decision-makers.

What makes Hallam stand out in the B2B space is their understanding of the full funnel. They don't just drive traffic — they think about lead quality, nurturing sequences, and how paid search fits into the broader demand generation strategy. Their team includes specialists in both Google Ads and LinkedIn, which is particularly valuable for B2B companies targeting specific industries or job titles.

• Dual-platform expertise — Google Ads and LinkedIn advertising under one roof
• B2B lead gen focus — campaigns structured around lead quality metrics
• Content-led approach — integrates content marketing with paid search for full-funnel coverage
• Award-winning — multiple industry awards for B2B campaigns

4. Croud — Best for Global SaaS

Starting price: £3,000/mo  |  Rating: 4.5/5  |  Best for: SaaS brands expanding internationally

Croud operates a unique "Croudies" model — a network of vetted digital marketing specialists around the world. For SaaS companies expanding into new markets, this provides access to local expertise without hiring separate agencies in each country.

Their experience with SaaS scaling is genuine. They understand the nuances of different buyer journeys across markets, how to adapt messaging for different regions, and the technical challenges of multi-currency, multi-language campaign management. If your SaaS product is growing beyond the UK and you need an agency that can scale with you, Croud is a strong contender.

• Global network — local specialists in 100+ markets
• SaaS scaling experience — proven track record with high-growth SaaS companies
• Multi-market campaigns — localised ad copy, landing pages, and bid strategies
• Proprietary technology — centralised platform for managing campaigns across markets

5. Impression Digital — Best for Mid-Market B2B

Starting price: £2,500/mo  |  Rating: 4.5/5  |  Best for: Mid-market B2B companies

Impression Digital, based in Nottingham and London, has built a solid reputation in the mid-market B2B space. They're particularly strong in professional services, technology, and manufacturing sectors — industries where the sales cycle is long and the buying committee involves multiple stakeholders.

Their approach to B2B is methodical. They start with extensive keyword research focused on commercial intent, build campaigns around the buyer journey, and use audience layering to prioritise high-value prospects. They also offer SEO and digital PR alongside PPC, which can be valuable for B2B companies that need organic search presence to complement their paid efforts.

• Professional services expertise — deep experience in legal, finance, and consulting verticals
• Integrated search — combines PPC with SEO for full search coverage
• Buyer journey mapping — campaigns structured around awareness, consideration, and decision stages
• Audience layering — uses in-market, custom intent, and remarketing audiences strategically

6. Found — Best for Demand Generation

Starting price: £2,500/mo  |  Rating: 4.4/5  |  Best for: B2B companies wanting demand generation, not just lead capture

Found takes a full-funnel approach to search marketing that works well for B2B companies tired of bottom-of-funnel-only strategies. They understand that in B2B, most of your audience isn't ready to buy today — and your advertising strategy needs to reflect that.

Their demand generation approach combines branded and non-branded search, YouTube pre-roll, Discovery ads, and remarketing sequences that nurture prospects through a longer decision cycle. This is particularly effective for SaaS companies where the average deal size justifies the longer, more considered buying process.

• Full-funnel strategy — not just bottom-of-funnel lead capture
• YouTube and Discovery — reaches B2B buyers beyond Search
• Remarketing expertise — sophisticated sequencing for long sales cycles
• Performance-focused — tracks impact across the entire funnel

7. Receptional — Best for Professional Services

Starting price: £2,000/mo  |  Rating: 4.4/5  |  Best for: Professional services firms (legal, finance, consulting)

Receptional has been around since 1999, making them one of the longest-established digital agencies in the UK. Their particular strength is in professional services — law firms, financial advisers, management consultancies, and similar B2B businesses where trust and credibility are paramount.

In professional services, Google Ads requires a different touch. The keyword landscape is competitive, the CPCs are high, and the prospects are sophisticated. Receptional understands how to create ads and landing pages that speak to senior decision-makers, not just anyone who types a query into Google. Their long track record also means they've built up significant benchmark data for these industries.

• 25+ years of experience — one of the UK's longest-established digital agencies
• Legal and finance expertise — deep understanding of regulated industries
• High-CPC management — skilled at getting results in expensive keyword markets
• Conversion-focused — emphasis on quality leads over volume

8. Loud Mouth Media — Best for SaaS Startups

Starting price: £1,500/mo  |  Rating: 4.3/5  |  Best for: Early-stage SaaS companies

Based in Belfast with offices in Dublin and London, Loud Mouth Media is a Google Premier Partner that punches above their weight. For SaaS startups, their agility is a major advantage — they move fast, test quickly, and aren't bogged down by the bureaucracy that can slow larger agencies.

They're particularly good at helping SaaS companies that are still figuring out their ideal customer profile (ICP). Their approach involves rapid testing across multiple audience segments, ad copy variations, and landing page concepts to identify what converts — and more importantly, what converts into paying customers rather than tyre-kickers.

• Agile and responsive — fast turnaround on changes and new campaigns
• Google Premier Partner — access to beta features and direct Google support
• Startup-friendly pricing — lower entry point than most specialist agencies
• Rapid testing methodology — quickly identifies winning audiences and messages

9. PPC Geeks — Best for Transparency

Starting price: £1,000/mo  |  Rating: 4.3/5  |  Best for: SMBs wanting transparent pricing and clear reporting

PPC Geeks has built their reputation on two things: transparency and free audits. They offer a comprehensive free Google Ads audit that shows businesses exactly where their account is underperforming — and they use this as a genuine trust-building exercise rather than a hard-sell tactic.

For small B2B companies that have been burned by agencies hiding behind vanity metrics, PPC Geeks is refreshing. Their reporting is clear, their pricing is straightforward, and they don't lock clients into long contracts. While they're not B2B specialists in the way that Upscale or Hallam are, their transparent approach makes them a solid choice for SMBs entering the B2B Google Ads space for the first time.

• Free comprehensive audits — genuine analysis, not a sales pitch
• Transparent pricing — no hidden fees, clear monthly reports
• No long contracts — month-to-month agreements available
• Accessible entry point — lower minimum spend than most B2B agencies

10. Add People — Best Budget Option

Starting price: £800/mo  |  Rating: 4.2/5  |  Best for: Small B2B companies with limited budgets

Add People, based in Manchester, is the most affordable option on this list — and for small B2B companies that can't justify a £2,000+/mo agency fee, that matters. They offer a solid Google Ads management service at a price point that's accessible for businesses just beginning to invest in paid search.

The trade-off is depth. You won't get the same level of B2B specialisation, offline conversion tracking expertise, or strategic thinking that agencies higher on this list provide. But if your budget is limited and you need competent campaign management while you grow, Add People delivers reliable results.

• Affordable pricing — lowest entry point on this list
• Google Partner — certified and accredited
• Broad service offering — PPC, SEO, social, and web design under one roof
• Good for growth — solid foundation to build on as your budget increases

How We Selected These Agencies

This isn't a list pulled from a directory or based on who paid the most. We evaluated agencies across five criteria specific to B2B and SaaS Google Ads performance:

1. B2B/SaaS experience — Do they have demonstrated case studies and clients in the B2B or SaaS space? Generic e-commerce experience doesn't translate.
2. Lead quality focus — Do they measure and optimise for lead quality, not just volume? This includes CRM integration, offline conversion tracking, and pipeline reporting.
3. Attribution sophistication — Can they handle the long, multi-touch attribution models that B2B sales cycles require? Or do they only report on last-click?
4. Client retention and reviews — What do their actual clients say? We looked at Google reviews, Clutch ratings, and case study depth.
5. Value for investment — Is the pricing proportionate to the service level and results delivered?

We also considered each agency's approach to the B2B-specific challenges that trip up generalist agencies: long sales cycles (3-12 months), multi-stakeholder buying committees, the difference between demo signups and actual pipeline, and the critical need for proper conversion tracking that goes beyond the initial form fill.

What to Look for in a B2B Google Ads Agency

Before you shortlist agencies, here's what actually matters for B2B and SaaS advertisers — and what separates a good agency from one that'll waste your budget:

Offline Conversion Tracking (OCT)

This is non-negotiable for B2B. If your agency isn't importing CRM data back into Google Ads, they're optimising blind. Google's algorithm will learn to find you more of whatever it thinks converts — and without OCT, it thinks a form fill is the end goal. With OCT, the algorithm learns that certain keywords produce leads that actually close, and it adjusts bidding accordingly. Companies using OCT typically see a 20-40% improvement in lead quality within the first three months.

Pipeline Attribution, Not Just Lead Counting

Your agency should report on cost per SQL, cost per opportunity, and ideally cost per closed deal — not just cost per lead. A £300 lead that converts into a £50,000 annual contract is infinitely more valuable than ten £30 leads that never respond to your sales team. If your agency's reporting stops at "we generated 100 leads this month," they're not measuring what matters.

Understanding of Long Sales Cycles

B2B deals take time. A lead from January might not close until July. Your agency needs to understand this and build attribution models that account for it. They should also be comfortable with the patience required — you can't judge a B2B campaign after two weeks the way you might an e-commerce campaign.

Account-Based Marketing (ABM) Capabilities

For SaaS companies targeting enterprise accounts, Google Ads can be a powerful ABM channel. The right agency will know how to use customer match lists, target specific companies with display and YouTube, and create campaign structures that align with your named account strategy.

Google Ads vs LinkedIn for B2B

A good B2B agency should have a clear point of view on when to use Google Ads versus LinkedIn. In general, Google captures existing demand (people searching for solutions), while LinkedIn creates new demand (reaching people who don't know they need you yet). Both have their place, but for pipeline generation, Google typically delivers a lower cost per qualified lead because the intent is already there.

Last updated: 4 March 2026.