Zephr

What Zephr does

Zephr.xyz Inc. is a venture-backed, Delaware-incorporated startup headquartered in Louisville, Colorado, building software-based GNSS positioning and local-AI tools for Android developers and enterprises. Its core product, the Zephr Positioning SDK, uses a patent-pending cooperative positioning method in which devices share anonymized raw satellite measurements to generate real-time ensemble error corrections; the SDK combines GNSS data with IMU sensor fusion, integrates NOAA GloTEC PPP-style corrections and IGS ephemeris services, and runs positioning computations entirely on-device, delivering approximately 50 cm open-sky accuracy (2x–5x improvement over standard GPS) without requiring specialized hardware.

The company is layering a Zephr Local AI Platform on top of the positioning stack, consisting of an AI Agent (location-aware conversational assistant following the Anthropic messages API spec), an Enhanced Places API built on Overture Maps with Accuracy Transfer processing, and Zephr MCP for Model Context Protocol integration. Target use cases span AR, autonomous vehicles, rideshare, delivery, navigation, asset tracking, OEM/telecom, search and rescue, defense, and collision avoidance, with horizontal segmentation across many verticals.

Commercially, Zephr currently distributes the SDK via self-serve signup (free during the open beta) and has partnered with Rx Networks to resell TruePoint enterprise GNSS corrections and with Google Cloud for infrastructure. Forward pricing is planned as usage-based, per-device, and tiered subscription, but no revenue, paying customer logos, or follow-on funding have been disclosed beyond the $3.5M seed round led by Space Capital and First Spark Ventures in November 2023.

Name

Zephr

Legal name

Zephr.xyz Inc.

Website

https://zephr.xyz

Company type

Private

Founded year

2022

Operating status

Operating

Headcount range

1–10 employees

Short description

Zephr.xyz builds a software-based GNSS positioning SDK for Android that uses cooperative positioning to deliver ~50 cm accuracy, plus a Local AI Platform for location-aware conversational agents and enriched place data, targeting AR, mobility, and enterprise GNSS buyers.

Ownership category

akta.pro rank

Headquarters

HQ city

Louisville

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, Infrastructure, Operations, Marketing or Sales

Revenue model

1. SDK Licensing: Per-device or per-user licensing model for the Positioning SDK. During beta, free; commercial terms may include per-device or per-user fees.
2. Usage-based Positioning Services: Usage-based pricing for network-based GPS correction services and enhanced ephemeris data provided through the SDK.
3. Premium Features: Tiered subscription plans with premium features or services available at higher tiers.
4. Rx Networks TruePoint Partnership: Commercial GNSS corrections with Rx Networks TruePoint service offering 99.9% SLA, sub-meter accuracy, and global coverage for enterprise customers.

Pricing tiers

Go-to-market motion2 records

Distribution channels4 records

Marketing channels6 records

Core offering

Zephr develops a software-based GNSS Positioning SDK for Android that delivers sub-meter (~50 cm) accuracy using cooperative/networked GPS, sensor fusion, and public correction data (NOAA GloTEC, IGS ephemeris), without requiring hardware changes. On top of this positioning layer, it offers a Local AI Platform consisting of a location-aware AI Agent, an Enhanced Places API built on Overture Maps, and a Model Context Protocol (MCP) integration, all exposed via REST APIs for developers building AR, rideshare, delivery, autonomous, navigation, and location-aware AI applications.

Product overview

Zephr offers a dual-product portfolio centered on precision positioning and local AI intelligence. The core offering is the Zephr Positioning SDK, a software-based GNSS positioning solution for Android that achieves sub-meter accuracy (~50 cm) using sensor fusion and networked GPS corrections. Built on top of this positioning technology is the Zephr Local AI Platform, which consists of the Zephr AI Agent (conversational location-aware assistant), the Enhanced Places API (enriched place data with AI descriptions), and Zephr MCP (Model Context Protocol integration). The platform enables applications to understand precise location and spatial context through natural language interactions.

Differentiator

Problem solved

Functional benefit

Products and services

• Zephr Positioning SDK A software-based GNSS positioning SDK for Android devices that delivers sub-meter (~50 cm) accuracy using networked/cooperative GPS, sensor fusion (GNSS + IMU), NOAA GloTEC corrections, and IGS ephemeris. Provides 3DOF and 6DOF localization, 10 Hz update cadence, spoof-proof positioning, real-time multipath mitigation, and 2D/3D confidence metrics without requiring specialized hardware. Targeted at Android developers building AR, rideshare, delivery, autonomous, navigation, and location-aware AI applications.
• Zephr Local AI Platform A platform that brings local search into the age of AI by combining precision positioning with AI-generated place data and spatial context. Consists of three integrated components — Zephr AI Agent (conversational location-aware assistant), Enhanced Places API (enriched place data), and Zephr MCP (Model Context Protocol integration) — exposed via REST APIs and SDKs for developers building AI applications with real-world spatial understanding.
• Zephr AI Agent A location-aware AI assistant that combines Zephr's precision positioning (latitude, longitude, heading) with advanced natural language understanding to deliver contextual responses about a user's exact location, orientation, and spatial surroundings. Supports natural conversations about nearby places and directions via an Anthropic messages API-compatible interface.
• Enhanced Places API A REST API providing enriched place data with AI-generated descriptions, spatial relationships, and contextual information. Built on Overture Maps data with Zephr's Accuracy Transfer processing for field-verified positions. Supports bounding box and coordinate searches, distance-based radius filtering, category and name filtering, field-of-view queries, and returns structured GeoJSON responses.
• Zephr MCP (Model Context Protocol) A Model Context Protocol (MCP) integration that connects Zephr's location intelligence (precise positioning and spatial context) with external AI systems and agents, enabling AI applications to consume Zephr data through a standards-based protocol alongside the REST APIs.

Quantifiable outcome

• Achieves approximately 50cm (~sub-meter) open-sky accuracy, improving from standard 3-5m GPS accuracy
• +4 more outcomes

Segments12 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

Yes

API docs

API detail

Core technology

AI maturity

App detail

Integration2 records

AI capability7 records

Feature10 records

Partnerships

Four partnerships are on record, tiered core.

• Rx NetworkscoreTechnology or Integration · 5 January 2026Rx Networks partnered with Zephr.xyz to enhance high-precision GNSS technology for mass-market Android devices. The partnership integrates Rx Networks' TruePoint GNSS correction service with Zephr's positioning SDK, enabling global high-precision positioning as a software service for developers. TruePoint provides 99.9% SLA, sub-meter accuracy, and global coverage through ionospheric, orbit and clock corrections.
• Google CloudcoreTechnology or Integration · 18 June 2025Zephr's next-generation GNSS positioning SDK runs on Google Cloud infrastructure, achieving open-sky accuracies below 50 centimeters. The company is partnered closely with Google Cloud to enable next-generation applications including augmented reality, navigation apps, and AI audio navigation assistants.
• NOAA (National Oceanic and Atmospheric Administration)coreTechnology or IntegrationZephr integrates NOAA's GloTEC product for PPP-style corrections in real time. GloTEC provides publicly available correction data that the SDK uses to improve positioning accuracy.
• IGS (International GNSS Service)coreTechnology or IntegrationZephr integrates IGS ephemeris services for more accurate satellite positions. The IGS provides publicly available ephemeris data used in the positioning corrections.

Scale indicators1 record

Recent moves6 records

Expansion highlights7 records

Direct peers

• Mapbox: Mapbox provides developer-focused SDKs and APIs for maps, navigation, and location-based services. Like Zephr, it sells platform-level geospatial APIs to developers and powers location-aware applications across mobile and web.
• Rx Networks: Rx Networks delivers commercial GNSS correction services (TruePoint) with sub-meter accuracy and global coverage — directly comparable to Zephr's positioning corrections, and currently also a Zephr distribution partner for enterprise customers.
• Swift Navigation: Swift Navigation offers precise GNSS positioning solutions (Piksi, Skylark correction services) for autonomous vehicles and robotics. It is a direct competitor in the high-precision software/hardware GNSS correction space targeting similar verticals.
• NextNav: NextNav provides 3D geolocation and resilient positioning services, including a GNSS-independent positioning network. It competes with Zephr in delivering precise, robust positioning data to mobile and IoT devices.

Broad incumbents

• HERE Technologies: HERE offers a broad location platform including maps, positioning, and location APIs at scale. It overlaps with Zephr's Enhanced Places API and SDK distribution but serves a much wider enterprise customer base across automotive and logistics.
• Trimble: Trimble is an established leader in GNSS positioning technology serving surveying, agriculture, construction, and autonomous systems. It competes broadly with Zephr's positioning capabilities but with hardware-heavy offerings rather than software-only.
• TomTom: TomTom provides maps and location technology including traffic, navigation, and geocoding APIs. It overlaps with Zephr's Local AI Platform and Enhanced Places API at the enterprise mapping layer.
• ESRI (ArcGIS): ESRI's ArcGIS platform provides spatial analytics, mapping, and location services used widely across government and enterprise. Founder Sean Gorman's prior background at ESRI underscores the comparable GIS/spatial data focus.
• Google Maps Platform: Google Maps Platform bundles maps, routes, and Places APIs for developers. It is the dominant incumbent in places data and developer-facing location APIs, and Google Cloud is also a Zephr infrastructure partner.

Emerging players

• FocalPoint Positioning: FocalPoint delivers software-based GNSS positioning improvements for smartphones and wearables using super-resolution and spoofing detection. It is an emerging competitor pursuing similar software-only accuracy gains as Zephr.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/zephr-xyz

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles4 records

Funding overview

Funding rounds2 records

Investors3 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 Zephr