Backblaze

backblaze.com

Backblaze declares 29 subprocessors in its subprocessor list, which we last checked on Nov 11, 2026 (evidence). They include Amazon Web Services, Google Cloud and Stripe. The list last changed on Nov 7, 2026: 1 added, 0 removed. 23 tracked vendors name Backblaze as a subprocessor, including Fastly, Mistral and Vultr.

Subprocessors CSV of Backblaze's subprocessors · Atom feed of Backblaze's subprocessors DORA draft CSV of Backblaze's subprocessors as declared by Backblaze what's this? · 

29 third parties.

NamePurposeLocationListed since
2NDSITE Inc. (dba FreshBooks) A service used by Backblaze for accounting and manual purchase orders.Toronto, Ontario, Canada
365 Data Centers Services, LLC (acquired Sungard Availability Services LP) A data center which stores Customer Files for Backblaze accounts created in the US-West region and Customer Account Data for all regions.Rancho Cordova, California, USA
Amazon Web Services, Inc. A service used by Backblaze for internal data storage and backup/archive.Seattle, Washington, USA
Anthropic, PBC AIA service used by Backblaze for AI Modeling via Claude EnterpriseSan Francisco, California, USA
Chili Piper, Inc. A service used by Backblaze for scheduling.New York, New York, USA
Cloudflare, Inc. A service used by Backblaze for content distribution, web application security and DNS services.San Francisco, California, USA
Cologix Canada, Inc. A data center which stores Customer Files for Backblaze accounts created in the CA-East region.Toronto, Ontario, Canada
CoreSite, LLC A data center which stores Customer Files for Backblaze accounts created in the US-East region and Customer Account Data for all regions.Reston, Virginia, USA
CyrusOne, LP A data center which stores Customer Files for Backblaze accounts created in the US-West region and Customer Account Data for all regions.Chandler, Arizona, USA
Docusign, Inc. A service used by Backblaze for electronic agreement execution.San Francisco, California, USA
Freshworks, Inc. A help desk service platform used by Backblaze for customer support.San Mateo, California, USA
Gong Inc. A service used by Backblaze to collect customer insights.San Francisco, California, USA
Google LLC (Google Tag Manager and Google Analytics) Services used by Backblaze to collect analytics.Mountain View, California, USA
HubSpot, Inc. A service used by Backblaze for sending marketing email messages to customers.Boston, Massachusetts, USA
Interxion Netherlands B.V. (acquired by Digital Realty) A data center which stores Customer Files and Customer Account Data Storage for Backblaze accounts created in the EU-Central region.Amsterdam, Netherlands
Nautilus Data Technologies, Inc. A data center which stores Customer Files for Backblaze accounts created in the US-West region and Customer Account Data for all regions.Stockton, California, USA
Oracle America, Inc. NetSuite A service used by Backblaze for accounting and electronic invoicing.Austin, Texas, USA
Outreach Corporation A service used by Backblaze for sending email messages.Seattle, Washington, USA
Pendo.io, Inc. A service used by Backblaze for analyzing user experience.Raleigh, North Carolina, USA
Plivo, Inc. A service used by Backblaze as a SMS provider for non-EU customer verification.Austin, Texas, USA
Productboard, Inc. A service used by Backblaze to collect customer feedback.San Francisco, California, USA
Salesforce, Inc. A service used by Backblaze for customer relationship management.San Francisco, California, USA
Snowflake, Inc. A cloud data warehouse platform used by Backblaze for centralized data storage, transformation, business intelligence, and analytics reporting across operational systems.Menlo Park, California, USA
Stripe, Inc. A service used by Backblaze for processing online payments.San Francisco, California, USA
Tableau Software LLC. (acquired by Salesforce, Inc.) A service used by Backblaze to analyze data.Phoenix, Arizona, USA
Twilio, Inc. A service used by Backblaze as a SMS provider for EU customer verification.San Francisco, California, USA
Twilio SendGrid A service used by Backblaze to send email messages.San Francisco, California, USA
Zendesk, Inc. A service used by Backblaze to manage customer communications.San Francisco, California, USA
ZoomInfo Technologies LLC A service used by Backblaze to maintain a database of business/professional contacts.Vancouver, Washington, USA

Web TechnologiesCSV of Backblaze's web technologies · Atom feed of Backblaze's web technologies

Backblaze's homepage made 130 requests to 15 domains, and 7 services controlled by another company.

Analytics (1): CloudflareTag managers (1): Google CloudLive chat (1): Qualified.com, Inc.Cookie compliance (1): OneTrustOther (3): usually detected as Issue trackers: Sentry; Page builders: Webflow; SEO: Hunch Manifest Inc dba Schema App

7 third parties by category: Analytics 1Tag managers 1Live chat 1Cookie compliance 1Other 3

Third parties 7 · 119 requests
Webflow Webflow 1.6.0 38% of the page's requests 50
Qualified.com, Inc. Qualified 26% of the page's requests 34
Google Cloudsubprocessor Google Font API Google Hosted Libraries Google Tag Manager jQuery 3.5.1 reCAPTCHA 12% of the page's requests 15
OneTrust OneTrust 10% of the page's requests 13
Cloudflaresubprocessor Cloudflare Browser Insights cdnjs 2% of the page's requests 3
Hunch Manifest Inc dba Schema App Schema App 2% of the page's requests 3
Sentry sentry.io <1% of the page's requests 1
First party 1 · 11 requests
Backblaze Cloudflare GSAP 3.12.5 HSTS HTTP/3 Open Graph Sentry Webpack 8% of the page's requests 11

3 tracked companies loaded by the homepage are not in Backblaze's subprocessor list. A website can use a service without it processing customer data.

Subprocessor of (23)CSV of the companies listing Backblaze · Atom feed of the companies listing Backblaze

23 companies
  • Anaconda anaconda.com Cloud storage and backup provder
  • Appwrite appwrite.io Backup storage
  • Catapult Sports catapultsports.com Cloud storage and data backup
  • Chatlio chatlio.com Encrypted backups
  • Constant constant.com
  • CoreWeave coreweave.com
  • Docmost docmost.com
  • Everapi everapi.com
  • Fastly fastly.com Fastly uses Backblaze’s services for data hosting. The product that uses Backblaze’s services is Fastly Object Storage.
  • Flowmailer flowmailer.com Storage of back-ups
  • Fundraise Up fundraiseup.com Encrypted backup and secondary storage
  • Maileroo maileroo.com Cloud backup and object storage services
  • Mistral mistral.ai Cloud infrastructure; Product: Vibe Code Web
  • MSP360 msp360.com Hosting
  • Relevize relevize.com Offsite backup provider.
  • Ruddr ruddr.com Off-site data backup provider
  • SemantiqWall semantiqwall.com Off-site backup storage (B2, bucket with Object Lock)
  • Socket socket.dev storage of open source package data
  • SoundStack soundstack.com
  • urlscan urlscan.io URL scan results storage (DOM, Screenshot, API Trace)
  • Verkada verkada.com Cloud-based infrastructure provider Sex offender and public registries
  • Vultr vultr.com
  • wandb wandb.ai

ComplianceCSV of Backblaze's compliance · Atom feed of Backblaze's compliance

Security program

How Backblaze says it manages cybersecurity risk, in its annual report to the SEC.

Led by
Chief Information Security Officer · 30+ years of experience
quote Our cybersecurity risk management program is managed by our CISO, whose security team is responsible for leading enterprise-wide cybersecurity strategy, policy, standards, controls, and processes.Our CISO has more than 30 years of experience in cybersecurity, IT, governance, risk management, regulatory compliance, and data protection and privacy program design and implementation.
Board oversight
Audit Committee
quote Our Audit Committee is responsible for overseeing our cybersecurity, which represents an important component of the company’s enterprise risk management (“ERM”).
Outside review
Engages outside assessors or consultants
quote Our cybersecurity program includes the selection, implementation, testing, and monitoring of a layered set of administrative (including policies and procedures), technical, and physical controls, including access controls, endpoint protection, vulnerability management, independent testing, and monitoring capabilities, designed to reduce the likelihood and impact of cybersecurity threats.
Its own suppliers
Reviews their security
quote Third-Party Risk Management: Our business relies on various services from third-party service providers that could adversely impact the security of our systems and business.
Practices named
  • Incident response plan
  • Tabletop exercises
  • Penetration testing
  • Vulnerability management
Material incidents
None so far, it says
quote To date and except as otherwise may be noted in this Annual Report on Form 10-K, we do not believe that any cybersecurity threats, including as a result of any previous cybersecurity incidents have materially affected, or are reasonably likely to materially affect the company, including its business strategy, results of operations or financial condition.
Read Item 1C in full

Cybersecurity attacks impact businesses and organizations of all sizes and sectors on a global basis. At Backblaze, we recognize the importance of developing, implementing and maintaining a cybersecurity risk management program. Our customers rely on our solutions to store, use and protect their files, which may include confidential or personally identifiable information, critical business information, and other meaningful content. A successful cybersecurity attack could adversely affect the confidentiality, integrity, and availability of our information systems or any data residing therein.

We dedicate significant effort and resources to protect our systems and data, as well as the data of our customers from cybersecurity threats. We are dependent on internal and external information technology systems and infrastructure to securely process, transmit, and store critical information. Our Audit Committee is responsible for overseeing our cybersecurity, which represents an important component of the company’s enterprise risk management (“ERM”). We seek to reduce cybersecurity risks through a variety of control activities that are designed to identify, assess, manage and mitigate these risks.

Risk Management Strategy

The company’s cybersecurity risk management program is focused on the following key areas:

•Governance: As more fully described in the section titled “Governance” below, the cybersecurity risk management program is led by our Chief Information Security Officer (“CISO”), with oversight from the Audit Committee of our Board of Directors and input from the Risk Management Advisory Committee (the “Risk Management Committee”). Our Risk Management Advisory Committee is a cross-functional committee comprised of our executives and other leaders of various departments that consists of our Chief Executive Officer, Chief Financial Officer, Head of Legal and Compliance, CISO, other members of management, and other employees from selected key functions of the company.

•Approach: We use a cross-functional approach to identify, assess, treat, and monitor cybersecurity risks, while also implementing controls and procedures that are designed to provide for the prompt escalation of cybersecurity incidents and support appropriate public disclosure and reporting of incidents as required in a timely manner. Our cybersecurity program includes the selection, implementation, testing, and monitoring of a layered set of administrative (including policies and procedures), technical, and physical controls, including access controls, endpoint protection, vulnerability management, independent testing, and monitoring capabilities, designed to reduce the likelihood and impact of cybersecurity threats.

•Incident Response Planning: We maintain an incident response plan that includes defined processes, roles, communications, responsibilities and procedures for responding to cybersecurity incidents and other events that impact our operations. Our incident response plans are tested and evaluated on a regular basis.

•Third-Party Risk Management: Our business relies on various services from third-party service providers that could adversely impact the security of our systems and business. We have implemented processes designed to identify and assess cybersecurity risks associated with our use of third-party service providers. We generally conduct a security risk assessment based on the potential risk to the company and its customers prior to onboarding of any such new services and include security and privacy addenda to our contracts where applicable.

•Education and Awareness: We have established a security and privacy awareness program that runs throughout the year and includes training for all company personnel to enhance employee awareness of how to detect and respond to cybersecurity threats as well as more targeted training for company personnel that have increased responsibility for mitigating certain potential cybersecurity risks.

We regularly review and update our policies, procedures, processes and practices to address changes in the threat landscape and as a result of lessons learned from suspected, actual or simulated incidents. We conduct tabletop exercises, and engage third-party services to conduct evaluations of our security controls through penetration testing and independent audits. We also review industry best practices to assist in evaluating responses to new challenges and risks. These evaluations include testing the design and operational effectiveness of security controls. The state of the cybersecurity program is reported by the CISO to the Audit Committee.

Governance

Our Board of Directors, with input from the Risk Management Committee, oversees our enterprise risk management process, including the risks associated with AI and cybersecurity threats. Our cybersecurity risk management program is managed by our CISO, whose security team is responsible for leading enterprise-wide cybersecurity strategy, policy, standards, controls, and processes. Cybersecurity risks are evaluated alongside other enterprise risks and inform prioritization of mitigation activities and resource allocation. Our CISO also provides updates to the Audit Committee on our cybersecurity program, including recent developments, key initiatives to strengthen our systems, applicable industry standards, vulnerability assessments, third-party vendor risk, and independent security framework alignment and compliance maturity, AI, and other information security considerations. The Audit Committee also receives information regarding cybersecurity incidents, including prompt updates for any cybersecurity incidents that may be deemed material and which might require public disclosure. Management is responsible for the day-to-day operation of the cybersecurity program, while the Audit Committee provides oversight. Our CISO and other key personnel also frequently engage with key vendors, industry groups, and law enforcement communities as part of our continuing efforts to improve our cybersecurity program.

Experience

Our CISO has more than 30 years of experience in cybersecurity, IT, governance, risk management, regulatory compliance, and data protection and privacy program design and implementation. He has served in CISO roles for over 15 years, including leadership positions at a publicly traded cloud services company and organizations supporting highly regulated federal healthcare programs, and previously served as Director of IT Security at a publicly traded international satellite radio company. He is an IAPP Fellow of Information Privacy and holds recognized security, privacy, audit, and risk management certifications relevant to data protection and regulatory compliance.

Cybersecurity Risks

While we dedicate significant efforts and resources to our cybersecurity program, we may be unable to successfully identify threats, prevent attacks, satisfactorily resolve cybersecurity incidents, or implement adequate mitigating controls. Any breach of our network security and information systems or other cybersecurity-related incidents that results in, or may result in, the loss, theft or unauthorized disclosure of data, or any delay in determining the full extent of a potential breach, could have a material adverse impact on our business, results of operations, and financial condition, including harm to our reputation and brand, reduced demand for our solutions, time-consuming and expensive litigation, fines, penalties, and other damages. As is common in industry, we experience periodic phishing and DDoS attacks. To date and except as otherwise may be noted in this Annual Report on Form 10-K, we do not believe that any cybersecurity threats, including as a result of any previous cybersecurity incidents have materially affected, or are reasonably likely to materially affect the company, including its business strategy, results of operations or financial condition. For more information relating to cybersecurity risks and uncertainties, please see the risk factor entitled “If our information technology systems, including the data of our customers stored in our systems, are breached or subject to cybersecurity attacks, our reputation and business may be harmed” in Part I, Item 1A, and other risk factors in this Annual Report on Form 10-K.

Security program from Backblaze, Inc.'s Form 10-K for fiscal 2025, filed Mar 10, 2026, Item 1C, in its words (evidence)

Incidents reported by Backblaze's subprocessorsCSV of incidents reported by vendors Backblaze lists · Atom feed of incidents reported by vendors Backblaze lists

230 reported incidents in the last 30 days, by 11 of the vendors Backblaze lists as subprocessors.

A subprocessor list names a company, not the service an incident touched. This does not show that Backblaze was involved.

DateCompanyIncidentImpactLasted
Twilio· SendGridSMS Delivery Failures from Twilio to Turkcell Turkey minor3 h 54 min
Twilio· SendGridRetroactive Incident Impacting Twilio Usage APIs no impact stated1 min
AnthropicElevated errors on Fable 52 and Mythos 52 no impact stated1 min
Twilio· SendGridIssue resolved minor1 h 43 min
Twilio· SendGridSMS Delivery Receipt Delays from Twilio Phone Numbers to Movistar Venezuela minor3 h 26 min
HubSpotSome HubSpot tools may be unavailable for some users no impact stated51 min
Twilio· SendGridGateway API (Lookup API) Failure Increase on Verizon in United States minor10 h 23 min
Chili PiperCRM actions stuck in processing major44 min
Twilio· SendGridWhatsApp Business API Message Send Failures minor16 h 29 min
Twilio· SendGridVoice Call Failures from a Subset of Twilio Phone Numbers to Chile minor19 h 20 min
Twilio· SendGridVoice Call Audio Quality Degradation, Silent and One-Way Audio between Twilio and Multiple Networks in United Kingdom minor5 h 18 min
Twilio· SendGridSMS Delivery Delays and Failures from a Subset of Twilio Alphanumeric Sender IDs and Long Codes to Multiple Networks in Italy minor3 h 14 min
Twilio· SendGridSMS Delivery Delays and Failures from Twilio to Spusu United Kingdom minor3 h 26 min
Twilio· SendGridSMS Delivery Receipt Delays from Twilio to Bouygues Telecom France minor13 h 31 min
Twilio· SendGridSMS Delivery Failures from Network Subscribers in Germany to a Subset of Twilio Long Codes minor8 h 40 min
Twilio· SendGridSMS Delivery Failures from Twilio to ETL Laos minor16 h 8 min
Twilio· SendGridSMS Delivery Failures from Twilio to MTN Nigeria minor6 h
Twilio· SendGridSilent Network Authentication (SNA) Failure Increase and Gateway API (Lookup API) Failure Increase on EnStream in Canada minor14 h 12 min
AnthropicDegraded performance for Claude Fable 5.1 minor26 min
Twilio· SendGridSMS Delivery Receipt Delays from Twilio to Globe Philippines minor13 h 16 min
Twilio· SendGridSMS Delivery Receipt Delays from a Subset of Twilio Long Codes and Short Codes to Multiple Networks in United States minor21 h 36 min
Twilio· SendGridSMS Delivery Delays from Twilio to Multiple Networks in India minor3 h 39 min
Twilio· SendGridSMS Delivery Receipt Delays from a Subset of Twilio Short Codes to Multiple Networks in New Zealand minor2 days
SnowflakeINC20000337 minor2 h 5 min
SnowflakeINC20000336 minor3 h 20 min

And 205 more. All of them: CSV · Who is around them.

ChangesCSV of Backblaze's changes · Atom feed of Backblaze's changes

See the list as we read it on any date: Time machine

  1. Added subprocessor: Snowflake, Inc. evidence: subprocessor: Snowflake, Inc. list before and after: subprocessor: Snowflake, Inc.
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