How this list works
There is no overall number one. Agencies are grouped by what they are best for, and listed alphabetically inside each group, because the right PPC agency depends on your stage, budget and channels, not on who wrote the list.
Kiin publishes this list and is on it. Kiin appears only in the category where its own published facts put it. Every fact about another agency was read from that agency's own website on 30 October 2026 and is checkable from the scorecard below; where a site does not state something, the entry says so. Nobody paid to appear.
The shortlist by need
- B2B SaaS where Google and LinkedIn run as one funnel: Kiin
- SaaS scale-ups wanting paid search with SEO and GEO: Gripped, Team 4
- Google Premier Partner generalists with a B2B practice: Found, Impression
- Large, multi-market budgets: Brainlabs
- A small specialist Google and Bing shop: DemandMore
- Law firms and professional services SMEs: MagnifyLab
- PPC alongside B2B web and SEO: Spaced Digital, Volvox Digital
- Consumer and hospitality brands: Kinsman & Co
Most London PPC agencies are built on ecommerce and lead-gen accounts with short buying cycles. B2B search is different: low volume, expensive clicks, and a conversion that is worth nothing until sales qualifies it. The categories below separate the agencies built for that from the strong generalists.
The scorecard: facts you can check
No opinion scores. Each column is something the agency states on its own site, as read on 30 October 2026.
| Agency | London address on site | Google partner | Stated B2B focus | Pricing published | Results with numbers |
|---|---|---|---|---|---|
| Brainlabs | EC1Y | "Premier partners of all major platforms" | One of several sectors | No | 2 |
| DemandMore | N5 | Partner | Not stated | No | 2 |
| Found | EC1N | Premier Partner | B2B sector practice | No | 2 |
| Gripped | SE1 | Partner | B2B SaaS only | From £3,500/mo | 2 |
| Impression | SE1 (HQ Nottingham) | Premier Partner | B2B sector page | No | 1 |
| Kiin | W1W | Not stated | B2B SaaS only | $4,500/mo LinkedIn + Google | 2 |
| Kinsman & Co | E2 | Partner | Claims B2B PPC | No | 0 named |
| MagnifyLab | HA1 (registered) | Partner | SMEs, law firms | From £750/mo | 3 |
| Spaced Digital | E2 | Not stated | B2B, 15+ staff | No | 0 for PPC |
| Team 4 | EC1A | Not stated | B2B SaaS only | From £3,500/mo | 0 for PPC |
| Volvox Digital | SW12 (registered) | Not stated | B2B and B2C | No | 0 for PPC |
"Results with numbers" counts named client results with a figure published on the agency's own site. "Not stated" means we could not find it on the site, not that it does not exist.
The agencies, by category
Best for B2B SaaS where Google and LinkedIn run as one funnel
Sales-led SaaS where search captures demand that LinkedIn created.
Kiin
Kiin is a LinkedIn-led B2B agency that runs Google Ads as the capture half of the same funnel: LinkedIn and Meta build demand on the buying committee, search catches the people who then go looking, and both report one pipeline number. Minimum: about $5,000 a month in ad spend (about £3,700).
Named results: Storysnap, $3M+ pipeline from LinkedIn Ads; Lumi AI, blended CPL from $455 to $176.
Tradeoff: we wrote this list, and we are not a search-only shop. If Google is your only channel and you sell to consumers, a Premier Partner generalist below is a better fit.
Best for SaaS scale-ups wanting paid search with SEO and GEO
Companies that want one team across paid and organic search.
Gripped
The most specific B2B paid search offer in London. Published results: Nexstor, an IT MSP, £2m return from a £60K paid budget and website leads from 0 to 45 a month; Crownpeak £1.3m pipeline in one quarter from paid search and social.
Tradeoff: by its own terms not for teams testing with about £2k a month, companies without a sales team, or anyone needing pipeline inside 60 to 90 days.
Team 4
Team 4 runs PPC inside an inbound-led programme for SaaS, so search ads, landing pages and SEO are planned together. It states £4.2m generated for clients in the last 12 months across all channels; testimonial clients include AirDNA and Forecast.
Tradeoff: inbound and SEO-led, using paid where it makes sense; no PPC-specific client result is published.
Best for Google Premier Partner generalists with a B2B practice
Companies that want a large, accredited search team and are happy to share it with consumer brands.
Found
Found has a B2B sector practice covering SaaS, professional services and fintech, with B2B clients including PwC, Telehouse, Digital Realty and Blackhawk Network, and a stated view that search now includes social and AI answers. Published PPC result: One4All +116% conversions and +93% revenue year on year.
Tradeoff: multi-sector by design, and its homepage case studies are mostly consumer brands.
Impression
One of the UK's largest independent search agencies, with sector pages for B2B, SaaS and fintech. Published result: an airline client €6.5m revenue from demand gen campaigns. Testimonial clients include Stanhope Insurance, Cancer Research UK and DeltaNet International, and it runs its own Ads scripts for large accounts.
Tradeoff: Nottingham-rooted, and its showcased paid wins are mostly travel and retail.
Best for large, multi-market budgets
Advertisers already spending heavily on search who have hit a ceiling.
Brainlabs
Brainlabs is the scaled option, built on experimentation, with B2B SaaS one of several sectors. Published results: Clinique +1,242% new customers at 32% lower CPA; Bozzuto +94% conversion rate and 62% lower cost per lead.
Tradeoff: its paid search page targets brands already spending heavily; a small or early-stage B2B budget is not what it is for.
Best for a small specialist Google and Bing shop
Teams who want senior PPC hands and nothing else.
DemandMore
A focused PPC team with an audit and training offer for in-house marketers. Clients listed include Capify, Funding Options and BuildSafe. Published result: Harvey Jones Kitchens lead flow up close to 30% and cost per lead down 40%. Reporting is built on Funnel, so spend across platforms lands in one view.
Tradeoff: no B2B SaaS cases or LinkedIn offer shown; the portfolio leans retail, finance and insurance.
Best for law firms and professional services SMEs
Local lead generation where a call or enquiry is the conversion.
MagnifyLab
The lowest published entry price on this list, with results to match its niche, all on lead cost and sign-ups rather than vanity metrics: City Legal Solicitors new client sign-ups +64%; Steelo Google Ads lead costs down 54%; PEL Consultancy lead costs down 40%.
Tradeoff: SME and legal-sector focused, with no SaaS or enterprise cases.
Best for PPC alongside B2B web and SEO
Smaller B2B teams who want search ads, site and SEO from one studio.
Spaced Digital
Spaced is a B2B web and SEO studio with a paid search service attached, so landing pages and ads come from the same team. Published results are web and SEO: Bókun +66.5% free trial sign-ups; Hanson UK 750% profit increase from SEO.
Tradeoff: web and SEO-first; no PPC-specific result is published.
Volvox Digital
An SEO-led agency with a B2B PPC specialist on the team and multilingual campaign capability. Named clients include Corsearch, Memrise, Incopro, SThree, Bulb, Dealflo and Computer Futures, a mix of B2B services and consumer apps.
Tradeoff: SEO is the core, paid search rests on one named specialist, and published case studies are SEO.
Best for consumer and hospitality brands
On this list for completeness: London ranks it for PPC, but it is a B2C shop.
Kinsman & Co
A young full-service shop with a big-brand portfolio: named clients include British Airways, H&M, Marriott, ITV and Starling Bank. It states a £40 CPL pooled across B2B, education, food and fintech lead gen, without naming a client.
Tradeoff: the portfolio is consumer and hospitality, and the agency is two years old; long-cycle B2B SaaS should look elsewhere.
How to choose
- "Show me a B2B search account." If every case study is ecommerce ROAS, the agency has not solved low-volume, long-cycle search.
- "What do you optimise to?" Form fills are not pipeline. Ask whether offline conversions from your CRM go back into Google.
- "Who creates the demand search captures?" B2B search volume is small; most of it is created on LinkedIn, events and outbound. Ask how the agency handles that.
- "What is the fee and the minimum?" Four agencies on this list publish a fee. Media is extra everywhere.
- "Which accreditation, exactly?" Google Premier Partner is the top 3% of partners in a country; Partner is a lower bar. Check the badge on Google's Partner directory.