Double

New York City, NY, USA All United States companies → — Founded 2020

Practice Management Suite Revenue Cycle / Billing

Series A — $12.5 million

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Products

Keeper Tax

Double

General Productivity (AI Assistants)

Keeper is an AI-powered month-end close management software designed for accounting firms and internal finance teams to automate tasks and streamline financial processes.

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About Double

Double (formerly Keeper) is an AI-powered close management and practice management platform designed for accounting and bookkeeping firms. It aims to streamline workflows, reduce review time, and enhance client relationships by automating manual month-end close processes and centralizing client financial data. The platform integrates directly with major accounting systems like QuickBooks Online and Xero, allowing it to pull accounting data into workflows for tasks such as managing uncategorized transactions, conducting month-end reviews, handling 1099 and W-9 collection, and delivering financial reporting.

For physicians, while Double’s primary focus is on accounting and bookkeeping, the underlying principles of AI-powered automation and workflow streamlining could be conceptually relevant. In healthcare, AI is increasingly used to assist with repetitive, monotonous tasks, allowing professionals to focus on judgment-intensive work. Similar to how Double automates accounting tasks to improve accuracy and efficiency, AI in healthcare aims to reduce documentation time, aid in clinical decision support, and enhance overall quality of care. The company emphasizes amplifying human expertise rather than replacing it, a philosophy that resonates with the current direction of AI in medicine, where tools are built to support clinicians rather than supplant them.

Focus Areas

AI-powered close management practice management accounting bookkeeping workflow automation client communication financial reporting

Business Intelligence

Key Investors	Album Ventures, Y Combinator, Jack Altman, Mathilde Collin, Rahul Vohra, William Hockey, Sid K.
Partnerships	Intuit (Platinum Partner for QuickBooks Online integration)
Acquisitions	unknown
Technology	Cloud-native, AI-powered platform with deep integrations with QuickBooks Online and Xero.

What Physicians Need to Know

AI-Powered Close Management

Double specializes in automating and streamlining the month-end close process for accounting and bookkeeping firms. Their AI-powered tools cut individual close times in half through features like AI Bank Feeds for high-confidence categorizations and bulk approvals, and AI Journal Entries that convert source documents into balanced entries. They also offer automated accruals and AI Financial Summaries to generate client-ready commentary on financial changes.

Practice Management & Workflow Automation

The platform provides a unified system for managing client communication, tracking close progress, and gaining firm-wide visibility. It replaces fragmented workflows, spreadsheets, and scattered emails with standardized close motions and a single source of truth. Features include a client portal for document requests and communication, and time tracking integrated with specific tasks.

Accounting & Bookkeeping Automation

Double automates repetitive manual tasks in bookkeeping, such as transaction handling, reconciliations, and journal entries. It uses AI to organize bank activity, make categorization recommendations based on historical ledger behavior, and assist in reconciling discrepancies. This leads to increased efficiency and accuracy in financial reporting.

Client Communication

The platform centralizes client communication, linking every email, portal message, and document request to the relevant client and task. This improves collaboration and reduces the time spent chasing clients for information. The client portal facilitates secure messaging, file uploads, and responses to accounting queries.

Financial Reporting

Double offers custom financial reporting and interactive dashboards. AI Financial Summaries automatically generate clear explanations of key trends and variances, providing clients with meaningful insights beyond just numbers.

Key Differentiators

Double's key differentiators include its deep, two-way integration with major accounting ledgers like QuickBooks Online, Xero, Sage, and NetSuite, allowing it to sit directly on top of client financials. It focuses on automating busywork while retaining human judgment and review, ensuring AI outputs are explainable and verifiable. The platform is designed for real accounting workflows, surfacing important information and then getting out of the way.

Technology Stack

While specific proprietary details of Double's AI technology stack are not publicly detailed, it leverages AI for tasks such as bank feed categorization, journal entry generation, and financial summaries. Generally, an AI technology stack involves layers of infrastructure (chips, cloud), data, model development and operations, and applications. Double's AI is built into existing accounting workflows and is designed for human review and sign-off.

Physician Tip

While Double (keeper.app) is primarily designed for accounting and bookkeeping firms, its core strengths in workflow automation, AI-powered administrative task reduction, and streamlined client communication could be highly beneficial for physicians' practices. Physicians' use of AI has more than doubled since 2023, with 81% using it professionally, often for documenting clinical care and summarizing medical research. Double's capabilities could translate to: nn* **Automated Financial Management:** AI-powered bank feeds and journal entries could significantly reduce the manual effort in managing practice finances, categorizing expenses, and preparing financial reports. This frees up administrative staff to focus on patient care. n* **Streamlined Administrative Workflows:** The workflow automation and practice management features could help manage billing, insurance claims, and other administrative tasks more efficiently, reducing clinician burden. n* **Improved Communication and Documentation:** The client portal and unified communication tools could enhance interactions with patients regarding billing or administrative queries, and potentially streamline internal practice communication. AI's ability to generate summaries and draft responses could also be adapted for patient communications or internal notes. n* **Enhanced Financial Visibility:** Real-time dashboards and AI-generated financial summaries could provide physicians with clearer insights into their practice's financial health, aiding in better decision-making. nnBy adopting such AI tools, physicians can potentially improve efficiency, reduce administrative overhead, and dedicate more time to patient care, aligning with the growing trend of AI adoption in healthcare to alleviate administrative burdens.

Double integrates directly with leading accounting ledgers such as QuickBooks Online, Xero, Sage, and NetSuite, providing a two-way sync for live financial data. This allows the platform to sit on top of existing accounting systems and pull data into its workflows. While the company 'Keeper' (which Double was formerly known as) has a broader range of integrations for password and secrets management, including various cloud services, SIEM systems, and developer tools, the specific integrations for Double (keeper.app) are focused on accounting and financial platforms.

At a glance

Founded 2020

HQ New York City, NY, USA · United States

Team size 80

CEO Ben Stein

Funding Series A — $12.5 million

Products 1

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Products by Double

1 product in the directory

Keeper Tax

Double

General Productivity (AI Assistants)

Keeper is an AI-powered month-end close management software designed for accounting firms and internal finance teams to automate tasks and streamline financial processes.

What the Web Says

Double (formerly Keeper) is a software solution designed for accounting firms and internal finance teams to streamline bookkeeping workflows, particularly the month-end close process. It offers a two-way sync with major accounting software like QuickBooks Online and Xero, aiming to reduce manual labor and improve efficiency. Users generally praise its client communication features and ability to catch coding errors and inconsistencies.

Overall: Positive

Strengths

User-friendly, modern, and efficient client management.
Indispensable tool for bookkeeping firms, especially for accruals and accurate reporting.
Streamlined process for client feedback on transactions and automated reminders.
Excellent for team communication directly tagged to transactions.
Strong integrations with QuickBooks Online and Xero, with a good Xero integration noted.
Automates review processes, catches errors, and helps manage client queries and documents through a portal.

Limitations

Customer support can be nonexistent if not using a real QBO account for trials.
No archive feature, meaning data loss or continued subscription payment if a client disengages.
Limited client management features and no built-in billing or invoicing.
User interface can be clunky and overly colorful for some users.
Learning curve at the beginning, though support is available.
Lacks a mobile app, which some users desire for on-the-go access.

Based on reviews from: G2, Capterra, Reddit, The Ledger Stack

Last updated: 2026-09-08

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Press & Coverage

Business Wire

Double Raises $6.5 Million Series A from Album Ventures, Jack Altman, and Y Combinator to Double Accountants' Productivity

Double, a close and practice management platform for accounting and bookkeeping firms, announced a $6.5 million Series A funding round led by Album Ventures, with participation from Jack Altman and Y Combinator. The company plans to use the capital to accelerate product development, expand its teams, and grow its partner ecosystem.

2025-12

Double (Official Blog)

A Note on Our Series A and the Future We're Building

Double's CEO and co-founder, Ben Stein, discusses the company's $6.5 million Series A funding and its mission to transform accounting by amplifying human expertise with AI-driven software. The article also mentions the company's rebrand from Keeper to Double.

2025-12

Business Wire

Double Named a Platinum Partner in Intuit's App Partner Program, Defining Ledger-Level Close Execution

Double (formerly Keeper) has been named a Platinum partner in the new Intuit App Partner Program, the highest tier of partnership, reflecting its deep integration with QuickBooks Online. This designation highlights Double's role in streamlining month-end close and practice management for accounting firms.

2025-12

Business Wire

From Keeper to Double: Accounting Tech Leader Rebrands to Reflect Its Mission to u201cDoubleu201d the Power of Accountants

Keeper, a platform for bookkeeping and accounting firms, announced its rebrand to Double. This change signifies the company's evolution from simplifying the month-end close to empowering accountants with tools that multiply their capacity, accuracy, and impact.

2025-10

Double (Official Blog)

Keeper is now Double.

Ben Stein, CEO and Co-founder, announced the rebranding of Keeper to Double, explaining that the new name reflects the concept of double-entry accounting and the mission to double firm productivity. The change was prompted by a lawsuit.

2025-10

Startup Intros

Double (formerly Keeper): Funding, Team & Investors

Double (formerly Keeper), an AI-powered software provider for accounting and bookkeeping firms, has raised $6.5 million in a Series A funding round in December 2025. The company was founded in 2020 by Ben Stein and Kenny Song.

2026-07

PubMed (BMJ Qual Saf)

Is independent double-checking superior to single-checking in medication administration error detection? A randomised controlled simulation trial

This randomized controlled simulation trial compares the effectiveness of independent double-checking versus single-checking in detecting medication errors during administration in pediatric hospitals. The study aims to assess error detection rates, time required, and influencing factors like nurse experience and social dynamics.

2026-03

PMC (BMJ Qual Saf)

Effectiveness of double checking to reduce medication administration errors: a systematic review

A systematic review found insufficient evidence that double-checking medication administration significantly reduces errors or harm in hospitals, particularly for high-risk drugs. Higher-quality studies are needed to determine its benefits in patient safety.

2019-08

Frequently Asked Questions

How does Double's AI-powered platform specifically enhance practice management and workflow automation for healthcare providers?

Double's AI automates administrative tasks like scheduling, billing, and patient communication, freeing up staff to focus on patient care. It streamlines workflows by intelligently prioritizing tasks, reducing manual errors, and integrating with existing EHR systems to create a more efficient practice environment. This leads to improved operational efficiency and reduced administrative burden for physicians and healthcare administrators.

What are Double's key offerings in accounting and bookkeeping, and how do they address the unique financial reporting needs of a medical practice?

Double provides comprehensive accounting and bookkeeping services tailored for healthcare, including revenue cycle management, expense tracking, and payroll processing. Their financial reporting tools offer real-time insights into practice profitability, cash flow, and compliance with healthcare-specific regulations, ensuring accurate and transparent financial oversight for administrators.

How does Double ensure compliance with healthcare regulations such as HIPAA in its client communication and data management features?

Double prioritizes HIPAA compliance through robust data encryption, secure communication channels, and strict access controls. Their platform is designed to protect sensitive patient information in all client communication and data management processes, undergoing regular security audits and adhering to industry best practices to maintain a secure and compliant environment.

Can you explain Double's pricing model for its various services, and are there different tiers or packages available for practices of varying sizes?

Double offers flexible pricing models, often based on the scope of services utilized and the size of the practice. They typically provide tiered packages that can be customized to fit the specific needs of small clinics to larger hospital systems, with transparent breakdowns of costs for their AI-powered close management, practice management, and financial services. Specific pricing details are usually discussed during a consultation.

What kind of support does Double offer to its healthcare clients, and what is the typical onboarding process like for a new medical practice?

Double provides dedicated customer support, including technical assistance, account management, and training for new users. The onboarding process typically involves an initial assessment of the practice's needs, seamless integration with existing systems, data migration, and comprehensive training sessions to ensure a smooth transition and effective utilization of Double's platform.

What is Double's company stability and track record, and what partnerships does it have within the healthcare technology ecosystem?

Double has established itself as a reliable partner in healthcare technology, demonstrating consistent growth and a strong client base. While specific partnerships can vary, they often collaborate with leading EHR providers and other healthcare technology companies to ensure seamless integration and expanded service offerings, reflecting a commitment to long-term stability and innovation in the sector.

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