Top Martech Companies in London (553)

Strong Revenue Growth: Revenue is expanding with consecutive year-over-year increases in the first half of 2026 and management raising the full‑year outlook. The quarter ended June 30, 2026 also closed at nearly a $1.5 billion annualized run rate.

Profitability: Margins and cash generation are improving, with recent quarters showing positive non‑GAAP operating income and strong free cash flow. Materials also highlight operating discipline alongside growth.

Market Expansion: International revenue is outpacing the Americas, supported by new regional hubs such as Dublin and Singapore. Rising adoption of additional channels (e.g., SMS/WhatsApp) and larger‑account wins indicate a broader addressable market.

Strong Revenue Growth: Revenue is described at roughly $600M in 2024 with about 43% year-over-year growth and an estimated $900M annualized run-rate by October 2025. External recognitions like Deloitte Technology Fast 500 and the FT Americas’ Fastest Growing Companies 2026 align with this expansion trajectory.

Product Line Growth: Acquisitions of AfterSell (2024), mParticle (January 2025), and Canal (July 2025) expanded capabilities into SMB upsells, customer data platform functionality, and distributed commerce via Rokt Catalog. These additions broaden the offering beyond core checkout ads and support continued scale.

Investor Backing & Capital Strength: A January 16, 2025 secondary share sale valued the company at about $3.5B, signaling strong late-stage investor support. Coverage also notes a potential 2026 IPO target, consistent with capital-markets readiness.

Strong Revenue Growth: Revenue reached $738.2M in FY2026 and $211.0M in Q1 FY2027, with four consecutive quarters of organic acceleration. Guidance was raised to $895–$899M for FY2027, signaling continued double-digit expansion.

Customer Loyalty & Retention: Dollar-based net retention remained healthy in FY2026 and edged higher in Q1 FY2027, while large-customer counts grew and remaining performance obligations reached roughly $1.08B. These trends point to expanding spend within the base and solid revenue visibility.

Healthy Cash Flow: Non-GAAP operating income turned positive in FY2026 and stayed positive in Q1 FY2027, with free cash flow positive in both periods. Improving operating leverage supports ongoing investment alongside growth.

Strong Revenue Growth: Management disclosed 11 consecutive quarters of top-line expansion as of Q2 2026, with guidance indicating continued increases post‑IPO. Observations across filings and coverage describe multi‑quarter momentum rather than a one‑off spike.

Investor Backing & Capital Strength: A completed IPO and a prior minority investment from General Atlantic alongside Blackstone signal institutional confidence and provide balance‑sheet flexibility. Proceeds were used in part to reduce debt, supporting capacity for further expansion.

Innovation-Driven Growth: The Cortex AI platform is presented as a core differentiator driving performance gains across a unified DSP/SSP stack. Product updates and shortened learning cycles are highlighted as catalysts for advertiser and publisher adoption.

Innovation-Driven Growth: Active expansion into AI search experiences is described, including an October 2025 Opera Aria alpha and a six‑month AI Discover beta launched in April 2026. Company materials highlight first‑to‑market CPC ads in AI chat and early traction metrics, signaling momentum in new monetization surfaces.

Strategic Partnerships: Distribution has broadened with Mozilla’s 2024 expansion for Firefox surfaces and continuing integrations with Opera, alongside new publisher partners joining the AI Discover beta. These relationships point to durable access to high‑intent inventory beyond the major engines.

Market Expansion: Hiring pushes in Western Europe in 2025 aim to grow advertiser coverage across multiple markets, and executive additions in late 2025 target accelerated commercial expansion. These moves indicate geographic and commercial scaling consistent with an expanding private company.

Product Line Growth: Recent launches, including the Smartly Synapse AI orchestration layer and integrations with Amazon DSP and Roku Ads API, broaden the platform’s capabilities across CTV and cross‑channel activation. These moves indicate ongoing investment to expand the offering in 2026.

Strategic Partnerships: An expanded partnership with Horizon Media—becoming the first SaaS activation partner for Blu audience segments—signals increasing enterprise adoption. Company updates through mid‑2026 also highlight deepening ties with agencies and major platforms.

Market Expansion: A new product, engineering, and commercial hub opened in Mexico City in March 2026 demonstrates continued investment in global operations. Company materials cite support for 800+ brands and $6–7B in managed ad spend globally, suggesting a larger footprint than prior years.

Investor Backing & Capital Strength: The June 2025 definitive agreement for acquisition by STG, with leadership continuity noted at announcement and a sizable employee footprint, points to a platform investment with resources to scale. Earlier unicorn-level financing further underscores access to capital supporting ongoing expansion.

Innovation-Driven Growth: Regular releases through late 2025 and 2026—such as Da Vinci enhancements and the launch of Programmatic CRM with AI/agentic capabilities—signal sustained R&D and product momentum. Feature and suite expansion across email, mobile, and web indicate a growth engine rooted in innovation.

Strong Hiring & Retention: Mid-2026 career pages and third-party trackers show active open roles and “we’re hiring” messaging, implying continued team expansion. Public materials reference a global workforce across multiple regions, consistent with selective growth.

Strong Revenue Growth: Turnover increased in the latest filed year, building on prior-year expansion and pointing to continued top-line momentum. Filings summaries indicate the core trading entity maintained growth through FY2025.

Healthy Cash Flow: Cash and net assets rose year over year, suggesting improved liquidity and a strengthening balance sheet. This financial footing supports ongoing operations and investment capacity.

Cost & Operational Efficiency: Revenue growth alongside a smaller workforce signals a push toward higher productivity and efficiency. Observed staffing reductions appear to have been paired with sustained commercial activity.

Market Expansion: Public materials indicate customer counts rising from 500+ in 2021 to more than 1,000 by mid‑2025, suggesting steady adoption. Partner motions such as becoming a Shopify Premium Partner in 2025 further extend reach and implementation capacity.

Product Line Growth: Acquisitions of Unifai (2023) and PricingHUB (2026) expand the Product Cloud from core PIM/PXM into AI‑driven enrichment and pricing, broadening wallet share opportunities. A continued 2025–2026 release cadence (e.g., AI agents, CDN, data architect enhancements) reinforces an expanding offering.

Investor Backing & Capital Strength: A $135M Series D in March 2022 underpins subsequent platform launches and acquisitions, signaling capacity to execute on product and international initiatives. This capital base supports measured expansion.

Market Expansion: Geographic reach is expanding with a new Paris office in 2026, described as the company’s 20th physical market alongside operations in 19+ markets. This points to an actively growing footprint across regions.

Innovation-Driven Growth: Product velocity is evident with the launch of Mindset Agent in July 2026 and earlier rollouts like the Mindset Graph and new ad formats. These moves indicate ongoing investment in AI-driven capabilities and platform breadth.

Strategic Partnerships: Ecosystem ties are deepening, with The Trade Desk named as the first activation partner for Mindset Agent and availability noted across major buying platforms. Such integrations help extend distribution and activation pathways.

Strong Revenue Growth: Revenue is accelerating with multiple raised full‑year outlooks and consecutive quarters of rapid top‑line increases. The business also highlights a long “beat and raise” cadence into 2026.

Profitability: GAAP net income turned positive in 2026 alongside expanding adjusted EBITDA. Management continues to guide to improved margins through the year.

Healthy Cash Flow: Free cash flow is rising and full‑year cash generation guidance was increased. Disclosures point to stronger operating cash flow through the first half of 2026.

Profitability: GAAP profitability and expanding Adjusted EBITDA are evident, with FY2026 delivering over $100M in Adjusted EBITDA and profitability continuing in Q1 FY2027. Margin gains reflect efficiency actions and operating leverage noted in recent periods.

Healthy Cash Flow: Cash generation is solid, with FY2026 producing $53.3M in free cash flow and Q1 FY2027 adding roughly $37M. Consistent positive cash flow supports ongoing operations and strategic initiatives.

Investor Backing & Capital Strength: The company completed a $140M Dutch‑auction tender repurchasing 24.3M shares and increased its open‑market repurchase authorization by $100M. These actions signal confidence and capacity to return capital.

Strong Revenue Growth: Revenue accelerated across early 2026, with Q2 performance surpassing guidance and prompting management to raise the full‑year outlook to around $1 billion of revenue and higher adjusted EBITDA. Guidance increases followed multi‑quarter momentum from 2025 into 2026.

Diversified Revenue Streams: Media Technology grew sharply with stronger advertising demand and the Legend acquisition, while expansion into prediction markets adds a new category beyond core betting data. This mix shift broadens exposure beyond a single segment and supports the higher full‑year targets.

Innovation-Driven Growth: New offerings such as GeniusIQ, Moment Engine, and BetVision—alongside price‑led renewals and expanded services in Betting Technology—are identified as key drivers of segment gains. Product momentum in ad tech and data‑rich streaming is contributing meaningfully to growth.

Market Expansion: Technology trackers show a large and recently updated installed base, with third‑party sites detecting hundreds of thousands of live deployments and ongoing adoption activity. Independent aggregators place the platform within the top tier of hosted builders, indicating a growing footprint versus prior periods.

Innovation-Driven Growth: Product updates in 2025–2026 include expanded AI generation/agentic tools, AI Copilot, and "Populate Template with AI," signaling active investment to scale. Trade coverage in 2026 highlights significant AI releases that align with agency workflows.

Strategic Partnerships: Recent collaborations and embedding strategies—such as sector partnerships like Constructiv Digital and integrations like Epos Now—underscore an expanding partner ecosystem. Customer stories describe subscription and MRR lifts after moving to Duda, suggesting partner‑led momentum.

Market Expansion: Global footprint is described as 1,200–1,400 employees across 26 countries with a dozen-plus offices, a dedicated Seattle hub, and multilingual careers pages—signals of expanding operations and reach. Recent multi‑market activations (e.g., McDonald’s FIFA World Cup tie‑ins and other global launches) further indicate active presence across regions.

Strong Hiring & Retention: Careers content, open roles across locations, and August 2026 intern announcements point to ongoing hiring momentum. Repeat “Best Places to Work” recognitions in Chicago, Seattle, and Ad Age listings suggest an environment that attracts and keeps talent.

Product Line Growth: Integration of PMI Worldwide’s global merchandising unit into tms in 2023 is noted as broadening product and sourcing capabilities. This enlarged scope complements existing technology and marketing services.

Strong Market Position & Advantage: Independent rankings and awards place OMG/OMD at or near the top globally and across EMEA, with UK agencies taking major honors. This broad recognition and scale underpin competitive strength in the UK market.

Resilient & Sustainable Growth: UK results show a generally positive trajectory across recent periods, with rebounds following softer quarters. Media-led momentum at the parent level supports continued growth for OMG UK.

Strategic Partnerships: The OmniGOV unit remains the UK government’s sole media-buying supplier under the current framework, with recent call-offs reinforcing stable activity. This longstanding remit provides a steady anchor for UK billings.