Endex AI: A Smart Excel Assistant Built for Finance 139

Endex ai is an Excel add-in designed for the financial industry, having raised $14 million in funding led by the OpenAI Startup Fund. It embeds AI models into the Excel sidebar, allowing analysts to quickly complete financial modeling, valuation, and data cleaning tasks in a familiar environment—jobs that used to take hours can now be done in minutes.

Core Features

✅Natural Language Modeling: Users describe requirements in Chinese or English, and AI instantly generates complex formulas, three-statement models, or sensitivity analyses.

✅Multi-Source Data Integration: One-click pull of data from Capital IQ, FactSet, SEC filings, and internal databases, with automatic alignment of time series and calipers.

✅Smart Error Checking: Real-time checks for balance sheet balance, missing formulas, and assumption consistency, with correction suggestions.

✅Deep Research Assistant: Leverages OpenAI Deep Research to automatically retrieve and summarize prospectuses, research reports, and earnings call transcripts.

✅Templates and Memory: Save commonly used formats, assumptions, and workflows; reuse them on future projects with one click to maintain team consistency.

How to Use

1. Download and install the Endex add-in from Microsoft AppSource or the official website.

2. Open Excel, sign in via the sidebar, and select the required data sources (e.g., company annual reports, market databases).

3. Enter requirements in natural language, such as "Build a five-year revenue forecast and run scenario analysis."

4. Review the AI-generated model and citations; click on numbers to jump to source cells or external documents.

5. If adjustments are needed, modify via conversation; once confirmed, format and save as a team template with one click.

Use Cases

✅Investment Banking: Quickly complete M&A valuation, LBO models, and Pitchbook data updates.

✅Private Equity: Automatically organize target company historical financials and industry benchmarks during due diligence.

✅Asset Management: Real-time updates of portfolio company financial data and auto-generated investment committee memos.

✅Corporate Finance: Integrate ERP and external macro data during budgeting to improve forecast accuracy.

✅Research Institutions: Batch process research reports and regulatory filings to extract key metrics and trends.

Product Advantages

✅Deep Excel Integration: As an add-in, no need to change user habits.

✅Financial Language Understanding: Customized models understand financial statements, accounting methods, and due diligence documents.

✅Traceability: Every output comes with cell-level references and external data source tags, ensuring it is traceable and verifiable.

✅Secure and Reliable: Data transmission and storage are encrypted, using AES-256 and TLS 1.2/1.3, compliant with security standards.

Key Issues

✅Data Security: Endex AI uses AES-256 encryption for data at rest and TLS 1.2/1.3 for data in transit, complying with SOC 2, CCPA, GDPR, ISO 27001, and other standards. User files and queries are not used for model training, ensuring enterprise data security.

✅Efficiency Gains: Endex AI can build three-statement models and DCFs within 10 minutes, supports PDF-to-table conversion, and reduces manual input; it processes complex workbooks quickly and auto-fills templates, saving repetitive work hours and allowing professionals to focus on analysis and decision-making.

✅Data Sources and Reliability: Integrates internal documents, external data sources (such as CapIQ, FactSet, SEC filings), and user-uploaded documents (such as expert call transcripts and broker research reports). Through citation tracking, analysis results are directly linked to source documents, ensuring outputs are auditable and the reliability of analysis results is guaranteed.

As an Excel add-in, Endex AI can quickly build financial models, integrate internal and external data, and provide functions such as citation tracking, template auto-fill, and PDF-to-table conversion, ensuring data traceability and transparency. Its charting and visualization features are still under development. This tool is designed to optimize financial data analysis, significantly reducing manual operation time.

Endex's founding team has an accounting background; co-founder and CEO Nicolas Kopp is a former EY finance director, the head of customer success comes from PwC, and the VP of implementation is a certified public accountant and former client. Another founder, Tarun Amasa, is a Thiel Fellow.