Lunar
Lunar Systems is a stealth-stage healthcare technology company building a unified, AI-era platform to replace legacy hospital infrastructure, serving hospitals and health systems with one data model spanning clinical and administrative workflows.
- Company typePrivate
- Founded2018
- HeadquartersSan Francisco, United States
- Headcount11–50
- GTM typeB2B
- OfferingSoftware
What Lunar does
Lunar Systems, Inc. is a stealth-stage healthcare technology company founded in 2018 and headquartered in San Francisco. The company is building a single, unified platform designed to replace the legacy digital infrastructure — architecture tracing back to the 1960s and 1970s — on which most hospitals currently run. The platform uses one data model purpose-built for every hospital role, spanning clinical workflows at the bedside through back-office operations and final payment, with intelligence embedded in the foundation rather than added as a layer on top.
The core technology centers on a unified healthcare platform combining clinical, operational, and revenue-cycle workflows into a shared data model, exposed externally through a read-only HL7 FHIR R4 REST API integrated via EMR Direct's Interoperability Engine. Lunar emphasizes reliability and security for clinical decision support and positions its architecture as enabling the next generation of medicine. The team combines clinicians, operators, designers, and engineers — including repeat founders with billion-dollar company experience — and is backed by what the company describes as Silicon Valley's preeminent venture capital firms.
Lunar's business model is enterprise B2B direct sales to hospitals and health systems, though pricing is not publicly disclosed and the company is only now emerging from stealth. Go-to-market currently relies on the corporate website, a hospital-inquiry lead form, a developer-facing free FHIR API, an email newsletter, and active hiring through the Ashby ATS. With 11–50 employees and no publicly named customers, Lunar appears to be transitioning from a multi-year platform-build phase into early commercialization.
Lunar firmographics
Firmographics- Name
- Lunar
- Legal name
- Lunar Systems, Inc.
- Website
- https://golunar.com
- Company type
- Private
- Founded year
- 2018
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Short description
- Lunar Systems is a stealth-stage healthcare technology company building a unified, AI-era platform to replace legacy hospital infrastructure, serving hospitals and health systems with one data model spanning clinical and administrative workflows.
- Ownership category
- akta.pro rank
Lunar industry classification
Industry- Product category
- Healthcare Technology Platform
- NAICS
- Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services (51821), Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services (518)
- SIC
- Services-Prepackaged Software (7372), Services-Computer Programming, Data Processing, Etc. (7370)
- akta.pro primary industry
- Care Navigation, Referral & Digital Front Door Platforms (HLALABAH)
Keywords
Where Lunar is headquartered
LocationHeadquarters
- HQ city
- San Francisco
- HQ country
- United States
- HQ region
- North America
Offices1 record
Markets served
Lunar business model
Business model- GTM type
- B2B
- Offering type
- Software
- Cost components
- Personnel, Technology or R&D, Infrastructure, Operations, Marketing or Sales
Distribution channels1 record
Marketing channels3 records
Lunar product offering
Product offeringCore offering
Lunar builds and sells a unified healthcare technology platform that replaces legacy hospital digital infrastructure with a single data model and embedded intelligence. The platform supports every role and workflow from bedside to back office, from patient intake through final payment, and is designed for hospitals and health systems seeking to modernize clinical and administrative operations.
Product overview
Lunar offers a single, unified platform (the Lunar Platform) designed for healthcare organizations. It provides one data model purpose-built for every role—from the bedside to the back office—and supports workflows spanning the entire care delivery and administrative lifecycle, from patient intake through final payment. The platform emphasizes embedded intelligence in its foundation rather than superficial AI layers added on top.
Differentiator
Problem solved
Functional benefit
Products and services
- Lunar Platform
Companies that use Lunar
Customer profileSegments1 record
Ideal customer profiles1 record
Lunar technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- Yes
- API docs
- API detail
Core technology
AI maturity
App detail
Integration1 record
Feature3 records
Lunar partnerships and signals
Strategic signalScale indicators3 records
Recent moves5 records
Expansion highlights4 records
Lunar competitors and assessment
Company assessmentEmerging players
- Anterior: Anterior provides an AI clinical co-pilot that handles prior authorizations and clinical workflows on a unified patient data layer — an emerging player sharing Lunar's approach of building an AI-native layer that consumes data across healthcare workflows.
- Tennr: Tennr automates patient intake, verification, and prior authorization workflows using AI on healthcare data — an emerging peer overlapping with Lunar's patient intake and back-office automation footprint within its broader unified platform.
- 1upHealth: 1upHealth offers a FHIR-native data platform for providers, payers, and app developers to unify and exchange clinical data — an emerging peer sharing Lunar's FHIR-first developer strategy and unified patient record ambition.
- Health Gorilla: Health Gorilla is a certified Health Information Exchange and interoperability network providing clinical data through FHIR APIs — an emerging peer directly comparable to Lunar's EMR Direct-backed FHIR R4 REST API and clinical-data interoperability positioning.
Direct peers
- Commure: Commure is an AI-powered healthcare workforce and workflow platform unifying clinician and operational tooling across health systems — directly comparable to Lunar's ambition of a single unified platform spanning bedside to back office with embedded intelligence.
- Particle Health: Particle Health operates a FHIR-based API platform for healthcare data exchange and provider access — directly comparable to Lunar's read-only HL7 FHIR R4 REST API offering and the same strategic wedge of becoming a healthcare data infrastructure layer atop legacy EMRs.
- Zus Health: Zus Health builds a shared, unified healthcare data infrastructure that third-party developers and providers can build on — directly comparable to Lunar's unified data model and developer-friendly FHIR API approach to becoming the connective tissue for hospital systems.
Broad incumbents
- Oracle Health (Cerner): Oracle Health (acquired Cerner) is the second-largest hospital EHR vendor serving large health systems globally — the broad incumbent whose legacy Millennium platform is the second archetype Lunar's AI-native rebuilding message targets.
- R1 RCM: R1 RCM is the largest hospital revenue cycle management company in the US, managing patient billing and back-office payment workflows at scale — a broad incumbent that overlaps directly with the back-office/payment half of Lunar's "bedside to back office" unified platform.
- Epic Systems: Epic Systems is the dominant EHR vendor for large US health systems and the principal incumbent Lunar's "rebuild hospital infrastructure" thesis implicitly targets — the broad incumbent whose closed 1960s/70s-era architecture Lunar positions itself against.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat4 records
Key risks5 records
Key highlights6 records
Customer concentration
Lunar social profiles
Digital presenceLunar financial estimates
Financial estimateRevenue estimate
Valuation estimate
Lunar leadership team
Management profileNumber of profiles
Profiles1 record
Lunar funding detail
Funding detailFunding overview
Funding rounds2 records
Investors3 records
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Lunar M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Lunar
What does Lunar do?
Lunar builds and sells a unified healthcare technology platform that replaces legacy hospital digital infrastructure with a single data model and embedded intelligence. The platform supports every role and workflow from bedside to back office, from patient intake through final payment, and is designed for hospitals and health systems seeking to modernize clinical and administrative operations.
Is Lunar a public or private company?
Lunar is a private company. It is classified as venture growth investor backed and is currently operating.
When was Lunar founded?
Lunar was founded in 2018. It employs 11 to 50 people.
Where is Lunar based?
Lunar is headquartered in San Francisco, United States, in the North America region.
Who are Lunar's main competitors?
Emerging players on record are Anterior, Tennr, 1upHealth and Health Gorilla. Direct peers are Commure, Particle Health and Zus Health. Broad incumbents are Oracle Health (Cerner), R1 RCM and Epic Systems.
Does Lunar have an API?
Yes. Lunar offers a read-only HL7 FHIR® R4 REST API endpoint for healthcare interoperability. Developers and providers can access production FHIR data sources enabled by EMR Direct. The API follows the HL7 FHIR R4 specification, with OAuth-based authentication using the baseOAuthURL format: https://api.healthtogo.me/oauth/[datasource-name]/. FHIR endpoints follow the format: https://api.healthtogo.me/fhir/[fhir-version]/[datasource-name]/. The API is free to use for all developers and providers. Developer documentation is at www.interopengine.com/2021/open-api-documentation.html.
What industry is Lunar in?
Lunar's product category is Healthcare Technology Platform. Its primary akta.pro industry code is HLALABAH, Care Navigation, Referral & Digital Front Door Platforms. Its NAICS code is 51821 and its SIC code is 7372.