Companies

Combinely

combinely.ai

Combinely provides AI agents that automate tax, audit, and accounting workflows for professional accounting firms.

HQSan Francisco, California, United States
Employees1-50
1 active role
Jobs checked 4d ago
Specialization
Not classified
Business
Software Applications
Market
Cross Industry
Ecosystem
Agents
Customers
Enterprisesand 1 more customers values
  • Small Businesses
More details
Organization type
Commercial Company
Ecosystem
Agents
Business
Software Applications
Specialization
Not classified
Market
Cross Industry
Customers
Enterprises, Small Businesses
Delivery models
Not classified
Revenue models
Not classified
Listing status
Not classified
Latest equity round
Seed
Reported funding amount
Not classified

About

Combinely builds domain-specific AI agents—an “AI coworker”—for accounting firms, handling workflows across tax, audit, and accounting from research and data extraction through review and client delivery. Its differentiation is that the agents work inside firms’ existing tools, learn from prior client work, and prepare first-pass outputs while accountants focus on judgment and client relationships.

Market

Combinely competes in vertical AI and agentic workflow automation for accounting firms, positioning itself as domain-specific AI that spans data extraction, research, document and spreadsheet review, workflow execution, and client delivery across tax, audit, and accounting. Its main differentiation is an embedded AI coworker that works inside existing browser and Office workflows rather than relying solely on traditional point-to-point integrations; it is also model-agnostic, auditable, and enterprise-security oriented. Competitors such as Botkeeper, Docyt, Vic.ai, and Trullion are more concentrated around bookkeeping, AP, lease, or specific audit workflows, while Basis is the closest comparable end-to-end accounting-agent platform.

Target Customers

Combinely targets mid-sized and larger accounting firms, with a stated addressable range of approximately 30 to 5,000 staff. Its users and likely buyers include partners, firm leaders, tax, audit, and accounting teams, as well as preparers, reviewers, and client managers seeking to automate work without replacing their existing tools and processes.

At a Glance

Problem

Accounting firms face a persistent capacity problem because skilled tax, audit, and accounting staff still spend substantial time on repetitive administrative work: gathering documents, searching client history, answering routine queries, preparing first drafts, and checking junior work. The pain is especially acute during tax season, when a year’s workload is compressed into roughly 12 weeks, causing burnout, client delays, and lost business when firms lack capacity. The clearest killer use case is tax-season execution: turning client correspondence and source documents into draft tax work and review-ready outputs, rather than having professionals perform every preparatory step manually.

The economics are primarily labor leverage and throughput. Combinely’s public customer example at Burgess Hodgson reports more than 2,600 tasks handled during December and January and a 75% reduction in the time required to create income-and-expenditure work. That points to a product aimed at freeing expensive professional capacity, allowing firms to handle more client work and reserve human attention for judgment, review, relationships, and advice.

Product / Service

Combinely is vertical, domain-specific AI for accounting services, positioned as an AI coworker or junior accountant that operates across tax, audit, and accounting workflows. Rather than replacing a firm’s existing software, its agents work across browser-based systems such as Xero, Outlook, and OneDrive, using firm knowledge and client context to perform repeatable tasks. The system is model-agnostic, routing work among models such as Claude, Gemini, and open-source models, and can be configured for tasks including tax research, client-response drafting, document extraction, reconciliations, payroll preparation, VAT checks, and first-pass review.

The delivery model is a secure, workflow-oriented platform accessed through the web app, email, or Microsoft Teams, with Combinely’s team helping create customized agents for specific firm processes. Firms can require proposed actions to be previewed and approved by a human, while agent activity is auditable; the company also reports SOC 2 Type II certification and says customer data is not used to train AI models. Pricing was reported as per seat, with the company using a demo-led sales process rather than publishing self-serve pricing. The intended benefit is to fit into existing ways of working while producing a reliable first version of the work for professionals to review and finalize.

Market

Combinely competes in vertical AI and enterprise workflow automation for accounting firms, spanning tax, audit, accounting production, and client-service operations. Its competitive set includes general-purpose assistants such as Microsoft Copilot and OpenClaw, traditional point solutions, and emerging accounting-agent companies such as Artifact AI, Archie, and Basis. Adjacent accounting automation products and platforms, including Karbon AI, Dext, AutoEntry, Hubdoc, Docyt, Vic.ai, and related tax and audit software, compete for portions of the same budget, although Combinely differentiates itself by automating cross-system, end-to-end firm workflows rather than a single data-extraction or accounting function.

The evidence indicates early commercial traction rather than a pre-revenue company. Burgess Hodgson, a practice with more than 150 staff, used Combinely for tax-season correspondence, draft accounts, and quality checks, while Blu Sky reportedly used it for more than 2,000 tasks in one month across VAT reviews, reconciliations, and Excel modelling. Combinely completed Y Combinator’s Spring 2025 program; PitchBook reports $500,000 of funding and deal records classified the company as generating revenue, while a third-party estimate put 2025 revenue at $440,000. Those figures should be treated as indicative rather than audited current financials, but the customer deployments and reported task volumes show that the product is being used in live accounting operations.

Founders & Leadership

Tom InvernizziFounder
Co-Founder & CEO
Arthur GranacherFounder
Co-Founder & CTO

Funding History

2025-06
Seed$500K

Pioneer Fund, Y Combinator

Recent News

2026-10-02product_launch
Combinely introduces its AI coworker for accountants on YC Launch YC

Combinely posted a Launch YC introduction for an AI coworker that carries accounting workflows end to end. It says the product works across bookkeeping, tax, and audit, using a firm’s tools and standards to complete work.

2026-08-06partnership
Combinely becomes a Platinum partner of the Digital Accountancy Show

Combinely was announced as a Platinum partner of the Digital Accountancy Show. The event announcement describes Combinely as an AI platform for tax, audit, and accounting teams.

2026-03-10product_launch
Coco: AI Agent for Accounting Tasks

Combinely’s webapp product page presents the platform as an operating system for accounting work, designed for preparers, reviewers, and client managers. It emphasizes native workflow support, traceable answers, and tax research grounded in current US and UK guidance.

2025-11-25other
Combinely: AI coworker for Accountants

Y Combinator’s company profile described Combinely’s AI co-worker as operating like a junior team member and handling end-to-end workflows across tax, audit, and accounting systems. The profile also links to the company’s launch post for its AI co-worker for tax teams.

Active Roles

1
London, England, GB/Finance/79d ago

Business Model

Combinely appears to use a B2B, demo-led software model, selling access to its domain-specific AI platform and agents to accounting firms. Public pricing is not disclosed; the company directs prospective customers to request or book a demo, so exact subscription, usage, or contract terms cannot be confirmed.

Products

AI coworker web application for end-to-end tax, audit, and accounting workflowsWorkflow automation for repetitive accounting processesAI Tax Research for tax questions, analysis, and complianceMicrosoft Office add-ins for Word, Excel, and Outlook, including drafting, redlining, spreadsheet interrogation, calculation verification, and client-email assistanceSolutions for tax, audit, and general accounting, including bank reconciliations and month-end close

Customers

Blu SkyCloudworxCharles A. KernerThe Accounting LabWhipplewood CPAsBurgess HodgsonBlick RothenbergMoore Oury ClarkMFWEntretramitesTwo RoadsGreen+PurpleIncraDFK InternationalDark HorseReconciled

Tech Stack

Domain-specific AI agents for accounting workflowsModel-agnostic LLM orchestration across Claude, Gemini, and open-source modelsPerplexity Sonar Pro / Agent API for web-grounded, cited research and client communicationsBrowser-based agent automation that operates existing accounting toolsMicrosoft Word, Excel, and Outlook add-insTLS 1.3, AES-256, and AWS KMS-managed encryption

Competitors

Basis
Botkeeper
Karbon AI
Trullion
Vic.ai
Docyt