List of Rust Customers
Since 2010, our global team of researchers has been studying Rust customers around the world, aggregating massive amounts of data points that form the basis of our forecast assumptions and perhaps the rise and fall of certain vendors and their products on a quarterly basis.
Each quarter our research team identifies companies that have purchased Rust for Apps Development from public (Press Releases, Customer References, Testimonials, Case Studies and Success Stories) and proprietary sources, including the customer size, industry, location, implementation status, partner involvement, LOB Key Stakeholders and related IT decision-makers contact details.
Companies using Rust for Apps Development include: Amazon Web Services (AWS), a United States based Professional Services organisation with 135000 employees and revenues of $128.73 billion, Dropbox, a United States based Professional Services organisation with 2113 employees and revenues of $2.52 billion, Cloudflare, a United States based Professional Services organisation with 4263 employees and revenues of $1.67 billion, Modal, a United States based Professional Services organisation with 50 employees and revenues of $6.0 million and many others.
Contact us if you need a completed and verified list of companies using Rust, including the breakdown by industry (21 Verticals), Geography (Region, Country, State, City), Company Size (Revenue, Employees, Asset) and related IT Decision Makers, Key Stakeholders, business and technology executives responsible for the software purchases.
The Rust customer wins are being incorporated in our Enterprise Applications Buyer Insight and Technographics Customer Database which has over 100 data fields that detail company usage of software systems and their digital transformation initiatives. Apps Run The World wants to become your No. 1 technographic data source!
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| Logo | Customer | Industry | Empl. | Revenue | Country | Vendor | Application | Category | When | SI | Insight |
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Amazon Web Services (AWS) | Professional Services | 135000 | $128.7B | United States | Rust | Rust | Apps Development | 2018 | n/a |
In 2018 Amazon Web Services developed Firecracker, a microVM monitor written in Rust, to provide fast, secure lightweight virtualization underpinning serverless services such as AWS Lambda and AWS Fargate. Rust was used as the implementation language within the Apps Development category to deliver system-level application code that emphasizes memory safety and performance for infrastructure workloads.
The implementation centers on a compact virtual machine monitor designed to minimize runtime footprint while improving isolation and startup latency for ephemeral compute instances. Functional capabilities implemented include lightweight virtualization for short lived workloads, process isolation suitable for multi tenant serverless execution, and a small trusted computing base to reduce attack surface for compute hosts.
Firecracker was integrated into AWS Lambda and AWS Fargate and entered production use shortly after 2018, representing an infrastructure level adoption of Rust to support serverless compute services. Operational scope covered serverless compute platforms rather than end user applications, positioning Rust as the core systems language for this compute layer and influencing build, testing, and release pipelines for those services.
Governance and operational practices shifted toward systems programming disciplines aligned with Rust usage, including stricter compile time checks and language level memory safety expectations for engineers maintaining Firecracker. The stated outcomes in this implementation were improved isolation and reduced startup latency for serverless compute, aligning Amazon Web Services Rust Apps Development work with hardened, low latency virtualization at the infrastructure and compute layer.
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Cloudflare | Professional Services | 4263 | $1.7B | United States | Rust | Rust | Apps Development | 2019 | n/a |
In 2019, Cloudflare implemented Rust as part of its Apps Development work to build core networking and agent components. Cloudflare built BoringTun, a userspace WireGuard implementation, in Rust to improve performance, security, and cross-platform support for its WARP and Cloudflare One agent and edge services in the United States.
The Rust-based implementation is embedded into Cloudflare’s edge and networking stack, where it serves as a native userspace VPN and wire protocol module. BoringTun and related Rust components provide userspace WireGuard functionality, cryptographic primitives, and asynchronous networking capabilities consistent with Apps Development patterns for native performance and safety.
Integrations explicitly include the WARP client and the Cloudflare One agent, and the Rust components are used across Cloudflare edge services to provide secure tunneling and agent-side networking. The deployment structure is focused on edge delivery and agent runtime integration, with cross-platform builds to support multiple operating systems and edge node environments.
Governance and rollout were driven by Cloudflare engineering teams, with the changes announced and deployed around 2019 and documented in public engineering blog posts. Module usage and implementation details are inferred from those posts, and the implementation narrative centers on Cloudflare Rust Apps Development for networking and agent business functions.
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Dropbox | Professional Services | 2113 | $2.5B | United States | Rust | Rust | Apps Development | 2015 | n/a |
In 2015 Dropbox implemented Rust across infrastructure and client components as part of its Apps Development efforts, embedding the Rust application language into core storage and desktop synchronization subsystems. Dropbox implemented Rust to support development of performant, memory-efficient modules while retaining existing storage architecture components such as Magic Pocket and the desktop sync engine.
Implementation scope covered both backend and client-side code, with Rust used in Magic Pocket exabyte scale storage components and the desktop sync engine, and the engineering team building a custom Rust library for the Capture client feature. The Rust application was adopted for client libraries and modules that required reduced memory footprint and improved reliability in the file storage platform, outcomes explicitly stated by Dropbox engineering.
Operational coverage is United States focused within Dropbox engineering, with engineering posts indicating module usage across storage and client libraries rather than a single component adoption. The integration pattern centers on embedding Rust into existing storage pipelines and client sync processes, and using Rust libraries for feature development in Capture and other client capabilities.
Governance and rollout followed an engineering led expansion, with Rust pushed to production for client components by 2021 and internal libraries standardized to support cross component reuse. The narrative reflects Dropbox engineering decisions to centralize Rust development for both infrastructure and client features, aligning the Rust application with Apps Development practices for system reliability and memory efficiency.
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Modal | Professional Services | 50 | $6M | United States | Rust | Rust | Apps Development | 2022 | n/a |
In 2022, Modal implemented Rust as a core component of its Apps Development stack, using Rust to harden runtime and storage infrastructure. Modal implemented Rust to deliver memory-safe components within its worker runtime and storage systems while continuing to use Python for API servers and the Modal client.
The implementation emphasizes AppSec practices, securing software by design and during development. Rust is used alongside Python in a mixed-language architecture, with application boundaries exposed via a well-documented gRPC API and client interactions occurring through modal-client, the project’s open-source command-line tool and Python client library. Software dependency management is automated through Github Dependabot and automated synthetic monitoring test applications continuously validate network and application isolation in the runtime.
Network and transport protections are enforced by requiring HTTPS and TLS for all services, the public website, and the Dashboard, with the Modal client verifying TLS certificates on each connection. The deployment architecture separates worker runtime and storage infrastructure implemented in Rust from API and client layers implemented in Python, preserving strong isolation and minimizing attack surface through protocol-driven interactions.
Development governance is centered on a modern pull request based workflow in Github, incorporating internal code reviews and external penetration testing engagements to assess application security. Modal’s AppSec approach embeds Rust as a memory-safe language choice within a larger security program that includes dependency auditing, TLS enforcement, synthetic isolation testing, and formalized review processes.
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Buyer Intent: Companies Evaluating Rust
ARTW Buyer Intent uncovers actionable customer signals, identifying software buyers actively evaluating Rust. Gain ongoing access to real-time prospects and uncover hidden opportunities. Companies Actively Evaluating Rust for Apps Development include:
- Sohu.com Limited, a China based Professional Services organization with 4900 Employees
Discover Software Buyers actively Evaluating Enterprise Applications
| Logo | Company | Industry | Employees | Revenue | Country | Evaluated |
|---|---|---|---|---|---|---|
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Sohu.com Limited | Professional Services | 4900 | $836M | China | 2026-01-01 |
FAQ - APPS RUN THE WORLD Rust Coverage
Rust is a Apps Development solution from Rust.
Companies worldwide use Rust, from small firms to large enterprises across 21+ industries.
Organizations such as Amazon Web Services (AWS), Dropbox, Cloudflare and Modal are recorded users of
Rust for Apps Development.
Companies using Rust are most concentrated in Professional Services, with adoption spanning over 21 industries.
Companies using Rust are most concentrated in United States, with adoption tracked across 195 countries worldwide. This global distribution highlights the popularity of Rust across Americas, EMEA, and APAC.
Companies using Rust range from small businesses with 0-100 employees - 25%, to mid-sized firms with 101-1,000 employees - 0%, large organizations with 1,001-10,000 employees - 50%, and global enterprises with 10,000+ employees - 25%.
Customers of Rust include firms across all revenue levels — from $0-100M, to $101M-$1B, $1B-$10B, and $10B+ global corporations.
Contact APPS RUN THE WORLD to access the full verified Rust customer database with detailed Firmographics such as industry, geography, revenue, and employee breakdowns as well as key decision makers in charge of Apps Development.