Sequence Closes £15M Series A to Automate Revenue Operations for Modern Finance Teams

London-based Sequence has secured £15 million ($20 million) in a Series A round led by 645 Ventures, with co-investment from a16z, Firstminute Capital, Vor Capital, Passion Capital and Dig Ventures. A group of strategic operator-angels — including the CFOs of Decagon, Klaviyo and Wise — also participated, bringing total funding to approximately £28 million. The raise follows a year in which the company achieved 10x ARR growth, with hundreds of finance teams adopting the platform to automate revenue collection workflows.

Revenue operations — encompassing pricing, billing, invoicing, collections and revenue recognition — represents a chronic pain point for scaling B2B businesses. Despite significant innovation in adjacent financial infrastructure categories over the past decade, from payroll to spend management, the contract-to-cash workflow has remained dominated by spreadsheets, manual processes and fragmented tools that struggle under the weight of complex, custom pricing structures. Finance teams at fast-growing software companies routinely spend the majority of their working time on repetitive tasks: calculating invoices by hand, chasing unpaid bills, reconciling transactions and re-engineering billing pipelines each time the commercial team changes a pricing model. Revenue leaks from contracts that are difficult to track at scale.

Sequence was built around a foundational data model designed to interpret any pricing construct or bespoke contract structure, covering usage tiers, seat-based overages, pricing ramps, temporary discounts and milestone-linked payments. The platform unifies quoting, billing, invoicing and accounts receivable in a single workflow, with real-time revenue recognition running alongside. Its AI agents operate as co-pilots across the contract lifecycle: a contract agent converts signed agreements into automated billing schedules synced to the CRM and ERP; a dunning agent handles payment-chasing communications and reconciles incoming payments; and an invoice-review agent detects anomalies and variances before invoices are dispatched. A centralised command centre gives finance teams full observability over all agent activity and enables clean handoff between automated and human-managed steps, keeping billing calculations deterministic and finance teams in control.

Current customers include Cognition, Legora, Bridge, 11x, incident.io, Runway and Moonpay. The platform automates over $1 billion in annual invoice volume. Sequence was co-founded by CEO Riya Grover, alongside Eamon Jubbawy — previously co-founder of identity verification firm Onfido — and Enda Cahill, from the founding team at Choco. Grover founded the company after a decade observing the same manual billing constraints repeat across software businesses, identifying revenue operations as the segment of enterprise finance most in need of a ground-up rebuild.

The Series A is Sequence's third funding round and follows seed-stage backing from a16z and Salesforce Ventures. 645 Ventures partners Nnamdi Okike and William Hess described the platform as bringing finance teams the control and flexibility they have long needed to handle the most complex commercial deals without breaking underlying billing infrastructure. The funding will support continued product development in close partnership with customers and accelerate the company's go-to-market expansion as demand from finance leaders grows.

Sources

• Soapbox VC – Sequence closes its £15m Series A
• Sequence blog – Sequence secures $20M Series A
• Tech Funding News – 645 Ventures and a16z back Sequence's AI copilot for revenue operations