Index Group

What Index Group does

Index operates a managed data foundation purpose-built for large law firms, continuously verifying, enriching, and classifying contacts, companies, matters, and timecards inside the firm's existing CRM, finance, and practice management systems. The platform runs over 500 specialized AI agents in the background, applying consistent industry codes, generating AI-written matter narratives, matching LinkedIn identities, confirming employer affiliations, and mapping ultimate parent and corporate hierarchies. Index achieves 85-90% match rates on contact and entity resolution compared with 60-65% typical of manual or in-house processes, and reports data quality scorecards to firm leadership monthly. The product integrates natively with InterAction, Salesforce, HubSpot, Intapp, Peppermint, Legal 360, and Microsoft Dynamics 365, requiring no migration, retraining, or workflow change for attorneys or operations staff. The company holds SOC 2 Type II, GDPR, and CCPA certifications, with infrastructure hosted in the US and Ireland.

The company sells exclusively to enterprise law firms through a high-touch, direct field sales motion targeting the AmLaw 50, AmLaw 100, and AmLaw 200. Stated customer penetration is 40+ of the AmLaw 100 and 8 of the world's 10 largest law firms, with named logos including Pillsbury Winthrop Shaw Pittman, Gunderson Dettmer, and Dickinson Wright PLLC (where Index back-tagged 200,000+ historical matters with SALI taxonomy tags). Revenue is generated through subscription contracts with fees defined per Order Form and excess usage billed at month-end overage rates; the company does not publish pricing. The business is governed under California law, with data hosted on US servers and additional hosting in Ireland. The company was founded in 2015, was backed by Y Combinator in 2016, and received follow-on funding from AI Seed (2017) and Blue Moon and Four Cities Capital (2021). Note: some incoming data attributes a 'German machine tool manufacturer' identity with India expansion activity to 'Index Group'; this appears to refer to a different entity and is not reflected in this analysis.

The competitive position rests on a proprietary contact and entity dataset ('Index Data') that improves with each new client engagement, deep integrations across the legal technology stack, and domain specialization in law firm data structures and SALI taxonomy. The primary value propositions are faster conflicts clearance (reduced from days to hours), accurate revenue insight, attorney-trusted CRM data, risk reduction in client intake, and leadership visibility into how work, clients, and revenue connect. Distribution is supported by case studies, peer referrals within the AmLaw community, and a website-based inquiry funnel culminating in a 'Let's talk about your data' sales conversation.

Name

Index Group

Legal name

Index Group

Website

https://index.io

Company type

Private

Founded year

2015

Operating status

Operating

Headcount range

1–10 employees

Short description

Index is a managed data foundation for large law firms that uses 500+ AI agents to continuously verify, enrich, and classify contacts, companies, matters, and timecards within existing CRM and practice management systems. The company serves 40+ of the AmLaw 100 and 8 of the world's 10 largest law firms via enterprise subscription contracts.

Ownership category

akta.pro rank

Product category

Legal Data Management Software

NAICS

Web Search Portals, Libraries, Archives, and Other Information Services (519), Web Search Portals and All Other Information Services (51929), Web Search Portals and All Other Information Services (519290)

SIC

Security Brokers, Dealers & Flotation Companies (6211)

akta.pro primary industry

Enterprise Search, Indexing & Content Discovery (HDAEAGAH)

akta.pro secondary industry

Search / Index Databases (HDAEAAAK)

Keywords

• Managed data foundation
• Law firm analytics
• Contact data verification
• Matter classification
• Legal CRM enrichment

Headquarters

HQ city

Mountain View

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Software

Cost components

Personnel, Technology or R&D, Operations, Marketing or Sales, Infrastructure

Revenue model

1. Subscription Services: Index provides its managed data foundation as a subscription service. Fees are set forth on an Order Form; customers are invoiced for usage exceeding contracted Service Capacity at specified rates. Payments are due within 30 days of invoice and are non-refundable.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels3 records

Core offering

Index is a managed data foundation for law firms that continuously verifies, enriches, and classifies contacts, companies, matters, and timecards. It operates within a firm's existing CRM, finance, and practice management systems, achieving 85–90% match rates on contact and entity resolution compared to the 60–65% typical of manual or in-house processes, without requiring migration, new tools, or workflow changes.

Product overview

Index is a single unified managed data foundation for law firms, consisting of one core platform that continuously manages data quality across contacts, companies, matters, and their interconnections. The product works alongside existing CRM systems (InterAction, Salesforce, HubSpot, Peppermint, Intapp, Legal 360, Microsoft Dynamics 365), practice management, and finance systems—enriching and connecting data in the background without requiring migration, retraining, or workflow changes. The platform applies consistent industry codes, generates matter narratives, verifies contact records, and maps corporate hierarchies using over 500 specialized AI agents operating continuously.

Differentiator

Problem solved

Functional benefit

Products and services

• Index A managed data foundation for law firms that continuously verifies, enriches, and classifies contacts, companies, matters, and timecards. Operates within existing CRM, finance, and practice management systems (InterAction, Salesforce, HubSpot, Peppermint, Intapp, Legal 360, Microsoft Dynamics 365) with no workflow changes required, achieving 85–90% match rates. Powers AI-generated matter descriptions, SALI standard tagging, corporate hierarchy mapping, and monthly data quality scorecards for large law firms.

Quantifiable outcome

• 85–90% match rates on contact and entity resolution vs. 60–65% typical of manual or in-house processes
• +3 more outcomes

Named customers4 records

Segments1 record

Ideal customer profiles1 record

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration7 records

AI capability6 records

Feature6 records

Partnerships

Nine partnerships are on record, tiered core and strategic.

• InterAction (LexisNexis)coreTechnology or IntegrationIndex integrates directly with InterAction, a major CRM and relationship management platform used by law firms, enabling seamless data synchronization without migration or new system deployment.
• SalesforcecoreTechnology or IntegrationIndex integrates with Salesforce as one of its primary CRM platforms, enabling continuous data verification, enrichment, and classification within Salesforce environments used by law firms.
• HubSpotcoreTechnology or IntegrationIndex integrates with HubSpot CRM, enabling law firms using HubSpot to benefit from continuously verified and enriched contact and company data.
• Peppermint TechnologycoreTechnology or IntegrationIndex integrates with Peppermint Technology's legal practice management platform, providing data foundation services to Peppermint users.
• IntappcoreTechnology or IntegrationIndex integrates with Intapp's suite of legal industry software solutions, providing a managed data foundation layer for Intapp users.
• Legal 360 (HSO)coreTechnology or IntegrationIndex integrates with Legal 360, providing law firms using this platform with continuous data verification and enrichment services.
• Microsoft Dynamics 365coreTechnology or IntegrationIndex integrates with Microsoft Dynamics 365, enabling enterprise law firms that run on Dynamics to access continuous data quality management.
• LexisNexisstrategicTechnology or IntegrationLexisNexis is listed as a business partner with whom Index has a relationship. Index shares certain Business Contact data with LexisNexis to obtain additional information to enhance its Services.
• Stripe, Inc.coreTechnology or IntegrationStripe serves as Index's payment processing partner, collecting voluntarily-provided payment card information necessary to process customer payments. Stripe's terms of service and privacy policy govern its use and storage of Personal Data.

Scale indicators4 records

Recent moves8 records

Expansion highlights5 records

Direct peers

• Litera: Litera is a legal-tech roll-up serving AmLaw firms with practice management, document, and CRM-adjacent workflow software; it competes for the same legal-IT budget and increasingly bundles data-quality features that overlap with Index's value proposition.
• Wilson Allen (formerly Microsystems / Akin Gump spinoff): Wilson Allen provides data management, analytics, and migration services for large law firms, including contact data quality and PMS/CRM data work — directly comparable in customer base, service model, and data-quality use cases.
• LexisNexis (InterAction / Lexis+): LexisNexis is both a strategic partner and the most direct competitive analogue: it owns InterAction, the dominant legal CRM, and operates the world's largest legal and contact data assets — directly comparable in target customer (AmLaw 100), data assets, and legal-CRM integration footprint.
• Foundation Software Group: Foundation Software Group provides data unification and business intelligence for law firms — directly comparable in target customer (AmLaw), use case (firmwide data quality and reporting), and integration footprint with PMS/CRM systems.
• Intapp: Intapp is a leading legal-industry software platform (conflict checks, business acceptance, time capture, relationship intelligence) that serves the same AmLaw customer base and shares many of the same integration endpoints; Index integrates with Intapp while also competing for the same data-quality and conflicts budget.

Emerging players

• DealCloud: DealCloud provides CRM and relationship intelligence for professional services firms including legal; it overlaps with Index on contact/entity data quality but is more focused on business development and pipeline workflows than managed data foundations.

Broad incumbents

• Aderant: Aderant is a long-standing practice management and financial systems vendor for mid-to-large law firms; it is comparable to Index as part of the legal data infrastructure stack serving the same AmLaw and AmLaw 200 customer base.
• Salesforce (Data Cloud / Einstein): Salesforce is both an integration partner and a broad incumbent; its native Einstein / Data Cloud capabilities increasingly address contact enrichment and entity resolution that overlap with Index's offering, particularly for firms running Salesforce as their primary CRM.
• HubSpot: HubSpot is both an integration partner and a broad incumbent CRM platform increasingly used by boutique and mid-size law firms; its native enrichment features partially overlap with Index's contact verification offering.
• Thomson Reuters (Westlaw / 3E): Thomson Reuters is a broad incumbent serving global law firms with legal research, practice management, and data; it overlaps with Index in entity resolution, CRM-adjacent data, and legal analytics, but as part of a much larger portfolio rather than a specialized data foundation.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/Index_io
• LinkedInlinkedin.com/company/index-io

Compliance3 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles7 records

Funding overview

Funding rounds3 records

Investors4 records

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Index Group