OpenLegacy

Legacy Modernization Softwareopenlegacy.com

OpenLegacy provides an AI-driven platform that automatically generates cloud-native APIs and microservices from mainframes, IBM i, packaged applications, and legacy databases, sold primarily to large financial services, insurance, manufacturing, and retail enterprises via direct sales, AWS Marketplace, and Deloitte Tohmatsu partnerships.

Company typePrivate
Founded2013
HeadquartersPrinceton, United States
Headcount101–250
GTM typeB2B
OfferingSoftware

What OpenLegacy does

OpenLegacy is an AI-driven legacy system modernization platform company headquartered in Princeton, New Jersey. The company's core product, OpenLegacy Hub, connects directly to legacy systems—IBM z/OS mainframes (COBOL, CICS, IMS, VSAM), IBM i/AS400 (RPG), packaged applications (SAP, Temenos T24, Oracle BRM, JD Edwards, DXC GraphTalk), and legacy databases (SQL Server, Oracle, Sybase, PostgreSQL)—and uses AI assistance to automatically generate cloud-native APIs and microservices without rewriting the underlying code. The platform's modular components (Integration Studio, Modernization Planner, Modernization Decoupling Patterns) enable a phased coexistence architecture that allows legacy and modern systems to operate in parallel during multi-year modernization journeys.

The company sells primarily to large enterprises in financial services, insurance, manufacturing, and retail, with named customers including Citi, MetLife, Standard Chartered, Scotiabank, AIG, Legal & General, Citibanamex, Bank Leumi, and BPER Banca (300+ enterprise customers globally). Revenue is generated through annual subscription platform licensing of OpenLegacy Hub (distributed via direct enterprise sales and AWS Marketplace), supplemented by professional services delivered directly and through implementation partners such as Deloitte Tohmatsu in Japan.

Distribution combines direct enterprise field sales with channel partnerships: a flagship strategic collaboration with AWS (Marketplace listing and planned integration into AWS Transform for Mainframe), a strategic alliance with Deloitte Tohmatsu for the Japanese market through the OpenLegacy Japan Co., Ltd. subsidiary, and technology alliances with Microsoft Azure, Google Cloud, IBM, Red Hat, and VMware. The company has raised approximately $71M across four funding rounds since founding in 2013.

OpenLegacy firmographics

Firmographics

Name: OpenLegacy
Legal name: OpenLegacy Inc.
Website: https://openlegacy.com
Company type: Private
Founded year: 2013
Operating status: Operating
Headcount range: 101–250 employees
Short description: OpenLegacy provides an AI-driven platform that automatically generates cloud-native APIs and microservices from mainframes, IBM i, packaged applications, and legacy databases, sold primarily to large financial services, insurance, manufacturing, and retail enterprises via direct sales, AWS Marketplace, and Deloitte Tohmatsu partnerships.
Ownership category
akta.pro rank

OpenLegacy industry classification

Industry

Product category: Legacy Modernization Software
NAICS: Software Publishers (5132), Computer Systems Design and Related Services (54151)
SIC: Services-Prepackaged Software (7372), Services-Computer Programming, Data Processing, Etc. (7370)
akta.pro primary industry: Cloud Application Modernization & Refactoring (BPAEACAC)
akta.pro secondary industries: API-First Backend Platforms (BaaS/mBaaS & Serverless Backends) (HDAEAKAH), Cloud-Native Development (Containers, Kubernetes, Microservices) (BPAEACAD)

Keywords

Legacy modernization platform
Mainframe API integration
Cloud migration software
Enterprise integration platform
Microservices generation

Where OpenLegacy is headquartered

Location

Headquarters

HQ city: Princeton
HQ country: United States
HQ region: North America

Offices2 records

Markets served

OpenLegacy business model

Business model

GTM type: B2B
Offering type: Software
Cost components: Personnel, Technology or R&D, Marketing or Sales, Operations

Revenue model

Platform Software Licensing: Enterprise licensing of OpenLegacy Hub platform for legacy modernization. Software is deployed via AWS Marketplace and direct enterprise agreements.
AWS Marketplace Distribution: Software available through AWS Marketplace, enabling enterprise customers to purchase and deploy via AWS infrastructure with cloud consumption billing options.
Professional Services: Implementation and consulting services provided directly and through partners like Deloitte Tohmatsu for system integration and deployment.

Pricing tiers

Model	Billing	Price
Subscription	Annual	Enterprise platform licensing

Go-to-market motion2 records

Distribution channels4 records

Marketing channels10 records

OpenLegacy product offering

Product offering

Core offering

OpenLegacy provides an AI-driven legacy modernization platform (OpenLegacy Hub) that automatically generates cloud-native APIs and microservices from mainframe, IBM i, legacy database, and packaged application systems without changing the underlying legacy infrastructure. The platform enables phased, low-risk migration to AWS, Azure, GCP, or hybrid environments through pre-built connectors and AI-assisted code generation.

Product overview

OpenLegacy is an AI-driven legacy modernization platform consisting of the core OpenLegacy Hub platform plus modular components including Integration Studio, Modernization Planner, and Modernization Decoupling Patterns (Internal, External, and Data Layer). The platform uses pre-built connector suites for mainframes (DB2, CICS, IMS, VSAM, JCL, Natural, 3270 Screens), IBM i/AS400 systems (RPG, COBOL, DB2), packaged applications (SAP, Temenos, Oracle BRM, JD Edwards, GraphTalk), and databases (SQL Server, Oracle, PostgreSQL, Sybase, JDBC) to automatically generate cloud-native APIs and microservices. The architecture is technology-agnostic, supporting deployment to AWS, Azure, GCP, or hybrid environments with zero disruption to existing legacy systems.

Differentiator

Problem solved

Functional benefit

Brands

OpenLegacy Hub: AI-driven mainframe modernization platform integrated with AWS that enables enterprises to migrate legacy systems incrementally without downtime
Integration Studio
Modernization Planner

Products and services

OpenLegacy Hub Flagship AI-driven platform that connects directly to legacy systems and automatically generates digital services (APIs and microservices) without changing the legacy system. Serves as the central hub for API design, legacy connectivity, and deployment management for enterprise IT and digital transformation teams.
Integration Studio Component of OpenLegacy Hub providing secure connection to legacy systems including mainframes and IBM i, offering the interface for configuring and managing integrations.
Modernization Planner AI-powered component that creates step-by-step workplans for modernization, identifying dependencies and safe decoupling points to ensure coexistence between legacy and modern systems with zero disruption.
Mainframe Connectors Pre-built connectors for mainframe sources including DB2, CICS COBOL, IMS, VSAM, JCL, Natural, 3270 Screens, Microfocus COBOL, Unisys, and Tandem, enabling rapid API generation from z/OS systems.
IBM i (AS/400) Connectors Pre-built connectors for IBM i systems including RPG, COBOL, DB2 for i, Data Queue PCML, IBM MQ, and 5250 Screens, enabling API generation from AS/400 environments.
Packaged Application Connectors Pre-built connectors for enterprise packaged applications including SAP RFC, Temenos T24 (TAFC/TAFJ), Oracle BRM, JD Edwards, and DXC GraphTalk, enabling modernization of core business systems.
Database Connectors Pre-built connectors for legacy databases including z/OS DB2, IBM i DB2, VSAM, SQL Server, Oracle, Sybase, PostgreSQL, and JDBC, enabling API exposure of legacy data stores.

Quantifiable outcome

10x faster time-to-market
+5 more outcomes

Companies that use OpenLegacy

Customer profile

Named customers16 records

Segments7 records

Ideal customer profiles3 records

OpenLegacy technology and API

Technology

Technology focussed Yes

API detail

Has API: Yes
API docs
API detail

Core technology

AI maturity

App detail

Integration20 records

AI capability7 records

Feature6 records

OpenLegacy partnerships and signals

Strategic signal

Partnerships

Three partnerships are on record, tiered flagship and core.

Deloitte Tohmatsu LLCflagshipImplementation/ SI/ Consulting Partner · 28 April 2026OpenLegacy Japan Co., Ltd. formed a strategic alliance with Deloitte Tohmatsu LLC to support modernization of legacy mainframe environments across Japanese enterprises. Combines OpenLegacy's patented platform technology with Deloitte Tohmatsu's system consulting and implementation capabilities. Partnership offers phased migration and hybrid architecture approaches designed to address Japan's '2035 Cliff' challenge, where critical shortage of skilled talent managing aging legacy systems poses risks to global competitiveness as the workforce shrinks. Claims up to 10x reduction in time-to-market and 60% cost reductions.
Amazon Web Services (AWS)flagshipStrategic or Co-development Partner · 15 March 2026OpenLegacy launched OpenLegacy Hub integrated with Amazon Web Services on March 15, 2026, enabling incremental mainframe modernization on AWS-native services including AWS Transform, Amazon Bedrock, AWS Lambda, and Amazon EKS. AWS customers access OpenLegacy through AWS Marketplace with planned integration into AWS Transform for Mainframe. This is a strategic collaboration combining OpenLegacy's AI-driven modernization platform with AWS's cloud infrastructure, targeting regulated industries requiring high reliability and compliance.
IBMcoreTechnology or IntegrationIBM Z series and watsonx Code Assistant integration. OpenLegacy competes with and complements IBM z/OS Connect for mainframe API exposure. IBM and AWS have a deep partnership for mainframe modernization acceleration, with OpenLegacy positioned as the preferred integration layer for hybrid approaches.

Scale indicators7 records

Recent moves6 records

Expansion highlights6 records

OpenLegacy competitors and assessment

Company assessment

Direct peers

MuleSoft (Salesforce): API-led connectivity platform that exposes legacy systems as reusable APIs and services, directly comparable to OpenLegacy Hub. Now part of Salesforce, MuleSoft is the leading enterprise integration platform with comparable target customers (banks, insurers) and an overlapping hybrid-cloud modernization value proposition.
Astadia: Specialist mainframe and legacy modernization services firm focused on COBOL-to-cloud migrations and API exposure for regulated enterprises. Directly comparable in target customer (banks, insurers), technology approach (automated refactoring), and hybrid coexistence model.
Modern Systems (Fortra): Mainframe application modernization vendor offering automated COBOL-to-modern-language conversion and database modernization tooling. Comparable in vertical focus (financial services, insurance), automation-first approach, and use of AI/ML for code transformation.
Heirloom Computing (OpenText): Acquired by Micro Focus/OpenText, Heirloom specializes in automated COBOL-to-Java and mainframe-to-cloud modernization. Comparable technology stack (automated refactoring, hybrid coexistence), enterprise customer base, and integration with legacy ecosystems like CICS and IMS.
Boomi: Cloud-native integration platform (iPaaS) with low-code API generation and legacy system connectivity. Comparable in target mid-market and enterprise customers, API-first integration approach, and hybrid deployment model, though less specialized in mainframe modernization.

Broad incumbents

IBM (watsonx Code Assistant, z/OS Connect): IBM's mainframe modernization stack (z/OS Connect, watsonx Code Assistant for Z, IBM Cloud Transformation) directly competes with OpenLegacy in the z/OS modernization space. As the mainframe incumbent with deep enterprise relationships, IBM represents the most strategic competitive threat while also being a technology integration partner.
Software AG (webMethods): Established enterprise integration and API management platform with webMethods and Aris portfolios. Competes in API exposure, hybrid integration, and legacy connectivity for large regulated enterprises, with broader portfolio scope than OpenLegacy.

Regional players

TmaxSoft: Korean legacy modernization vendor with strong presence in Asia-Pacific, particularly Japan and Korea. Comparable mainframe re-platforming (OpenFrame), database (Tibero), and middleware offerings serving the same regulated enterprise modernization market.

Emerging players

AWS Transform for Mainframe: AWS's first-party mainframe modernization service leveraging generative AI to refactor z/OS applications. Represents the most strategically significant emerging competitor given OpenLegacy's flagship AWS partnership and dependency.

Others

Wipro / Cognizant (Mainframe Modernization Practices): Global system integrators with large mainframe modernization practices serving the same banking and insurance customers as OpenLegacy. Compete as services-led alternatives and sometimes partner with OpenLegacy; represent both channel partners and indirect competitive threats via proprietary tooling.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

OpenLegacy financial estimates

Financial estimate

Revenue estimate

Valuation estimate

OpenLegacy leadership team

Management profile

Number of profiles

Profiles8 records

OpenLegacy subsidiaries and ownership

Company hierarchy

Subsidiaries1 record

OpenLegacy funding detail

Funding detail

Funding overview

Funding rounds4 records

Investors8 records

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

OpenLegacy M&A and investment

M&A and investment

M&A

Investments

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

Frequently asked questions about OpenLegacy

What does OpenLegacy do?

Is OpenLegacy a public or private company?

OpenLegacy is a private company. It is classified as venture growth investor backed and is currently operating.

When was OpenLegacy founded?

OpenLegacy was founded in 2013. It employs 101 to 250 people.

Where is OpenLegacy based?

OpenLegacy is headquartered in Princeton, United States, in the North America region.

How does OpenLegacy make money?

Three revenue lines are on record. Platform Software Licensing is the primary driver. The others are AWS Marketplace Distribution and professional Services.

Who are OpenLegacy's main competitors?

Direct peers on record are MuleSoft (Salesforce), Astadia, Modern Systems (Fortra), Heirloom Computing (OpenText) and Boomi. Broad incumbents are IBM (watsonx Code Assistant, z/OS Connect) and Software AG (webMethods). TmaxSoft is listed as a regional player. AWS Transform for Mainframe is listed as an emerging player. Wipro / Cognizant (Mainframe Modernization Practices) is listed as an others.

Does OpenLegacy have an API?

Yes. OpenLegacy Hub automatically generates standardized REST, GraphQL, and event-based APIs from legacy systems using AI assistance, enabling enterprises to expose mainframe and legacy business logic as cloud-native digital services without rewriting applications or adding heavy middleware. The platform generates APIs that pull data directly from legacy systems and can be deployed on-premises or in the cloud. Developer documentation is at www.openlegacy.com/ol-hub.

What industry is OpenLegacy in?

OpenLegacy's product category is Legacy Modernization Software. Its primary akta.pro industry code is BPAEACAC, Cloud Application Modernization & Refactoring, with a secondary code of HDAEAKAH, API-First Backend Platforms (BaaS/mBaaS & Serverless Backends). Its NAICS code is 5132 and its SIC code is 7372.