Public Key Infrastructure (PKI) Market Size - By Component, By Deployment Mode, By Organization Size, By Application, Analysis, Share, Growth Forecast, 2025 - 2034

Public Key Infrastructure Market Size

The global public key infrastructure market size was valued at USD 4.7 billion in 2024 and is projected to grow at a CAGR of 22.3% between 2025 and 2034. Governments and regulatory bodies worldwide are enforcing stringent frameworks, including GDPR, HIPAA, PCI-DSS, and CCPA, to protect sensitive data and ensure secure digital transactions. These regulations compel organizations in sectors such as BFSI, healthcare, and government to implement advanced security solutions like Public Key Infrastructure (PKI).
 

PKI is essential for achieving compliance by enabling secure authentication, encryption, and digital signatures that safeguard data integrity and privacy. Non-compliance often results in significant penalties and reputational harm, further driving organizations to adopt PKI solutions. As regulatory frameworks evolve to address emerging cybersecurity threats, the demand for PKI is expected to rise, propelling market growth.
 

Moreover, the growing sophistication and frequency of cyberattacks are key drivers of the public key infrastructure industry growth. Cyber threats, including phishing, ransomware, and data breaches, increasingly target sensitive information across various industries. Consequently, organizations are adopting PKI as a vital solution to strengthen their security frameworks. PKI enables secure encryption, authentication, and digital signatures, effectively mitigating risks associated with cyber threats. It ensures the protection of sensitive transactions, facilitates secure data exchanges, and enhances access control mechanisms.

Public Key Infrastructure Market Trends

The rising adoption of bring your own device (BYOD) among enterprises is a significant driver of growth in the public key infrastructure industry. BYOD enables employees to utilize personal devices, such as smartphones, tablets, and laptops, for work, thereby enhancing productivity and flexibility. However, it also introduces cybersecurity risks, including unauthorized access, data breaches, and compromised communication channels. PKI mitigates these risks by offering robust security solutions, such as encryption and authentication, to protect sensitive corporate data on personal devices.
 

Digital certificates issued through PKI ensure secure access to enterprise networks, applications, and resources, reducing vulnerabilities associated with BYOD. The increasing shift toward remote and hybrid work models further highlights the need for secure device authentication, positioning PKI as a critical element of enterprise cybersecurity strategies in the evolving digital workplace.
 

The lack of awareness about public key infrastructure (PKI) solutions remains a significant challenge in the PKI market. Many enterprises, especially small and medium-sized businesses, lack the technical expertise to understand the critical role of PKI in securing communication, protecting data, and ensuring regulatory compliance. This knowledge gap often results in an underestimation of cyber threats and data breach risks, leading to lower adoption rates of PKI solutions. Additionally, misconceptions regarding the complexity and cost of PKI implementation discourage organizations from adopting these systems. The absence of adequate training and resources further intensifies this issue, restricting the industry growth potential.
 

Public Key Infrastructure Market Analysis

Based on deployment mode, the market is segmented into on-premise and cloud. In 2024, the on-premise segment accounted for over 70% of the market share and is expected to exceed USD 20 billion by 2034. Organizations, particularly in regulated industries such as government, BFSI, and defense, increasingly prefer on-premise solutions in the public key infrastructure (PKI) market due to their superior control, security, and customization features. Deploying PKI systems on internal infrastructure ensures compliance with stringent data protection regulations while reducing reliance on third-party services, thereby mitigating risks of data breaches and unauthorized access.
 

Furthermore, enterprises managing sensitive information favor on-premise deployments as they provide complete ownership of cryptographic keys and digital certificates, establishing a robust security framework. For businesses with well-developed IT infrastructure and expertise, this approach is also cost-effective over the long term, as it enables efficient utilization of existing resources for maintaining and managing the PKI system.
 

Based on the organization size, the public key infrastructure market is divided into large enterprise and SMEs. The large enterprise segment held around 61% of the market share in 2024, due to its complex operational needs and increasing cybersecurity challenges. These organizations handle significant volumes of sensitive data, such as financial records, customer information, and proprietary business details, requiring advanced encryption and authentication systems.
 

PKI offers scalable solutions to secure communications, authenticate users, and ensure data integrity. Additionally, large enterprises must comply with stringent regulatory frameworks, including GDPR, HIPAA, and PCI-DSS, which further drive the adoption of advanced PKI technologies. Their substantial budgets enable investments in sophisticated PKI infrastructures, such as hardware security modules (HSMs) and customized certificate management systems.
 

North America public key infrastructure market accounted for 33% of the revenue share 2024 and is expected to exceed USD 9 billion by 2034. U.S. leads the market in the North America region and is expected to exceed USD 8 billion by 2034, driven by the extensive adoption of digital security solutions across industries such as BFSI, healthcare, government, and IT.
 

Regulatory frameworks, including HIPAA, PCI-DSS, and federal mandates, significantly boost the demand for PKI by ensuring secure communications and safeguarding data integrity. The increasing frequency of cyberattacks and the growing need for robust authentication systems further propel industry growth.
 

Europe serves as a major contributor to the public key infrastructure industry, driven by stringent data protection regulations such as GDPR and eIDAS. Countries like Germany, the UK, and France lead adoption efforts, supported by advanced IT infrastructure and an increasing focus on cybersecurity. The region exhibits strong demand for PKI solutions across industries such as BFSI, healthcare, and government to secure sensitive data and communications. Additionally, the growing implementation of digital transformation initiatives by enterprises and public sector organizations continues to drive the PKI market's growth in Europe.
 

The public key infrastructure market in the Asia Pacific region is expanding rapidly, driven by widespread digital transformation across industries, increasing cyber threats, and the implementation of advanced security protocols. Countries such as China, India, and Japan are at the forefront of this growth, supported by the expansion of IT sectors, rising e-commerce adoption, and government initiatives promoting digitalization.
 

Furthermore, stringent regulatory frameworks focused on data privacy and security are significantly boosting the demand for PKI solutions. The region's large population and growing internet penetration offer substantial opportunities for secure online communication, digital payments, and authentication solutions, propelling market demand.
 

The public key infrastructure industry in the MEA region is experiencing robust growth, driven by the increasing implementation of digital transformation initiatives, particularly within the government and financial sectors. The UAE and Saudi Arabia are key markets, focusing on enhancing secure e-government services and safeguarding financial transactions. In Latin America, the market is expanding due to escalating cybersecurity threats and the rapid advancement of digital infrastructure in countries such as Brazil and Mexico. Furthermore, regulatory progress and the rising adoption of cloud technologies are further driving the demand for PKI in the region.
 

Public Key Infrastructure Market Share

Microsoft, IBM Corporation, and DigiCert collectively held a substantial market share of over 19% in the public key infrastructure industry in 2024. Microsoft leverages Public Key Infrastructure (PKI) to enhance security across its platforms. This includes utilizing code signing to verify software authenticity and certificate-based authentication to secure access to services. By adopting PKI, Microsoft ensures data integrity and user authentication, thereby building trust in its digital ecosystem.
 

IBM incorporates PKI into its security solutions to facilitate secure access to networks and applications. By assigning digital identifiers to users, devices, and applications, IBM enables organizations to restrict access to authorized entities, thereby enhancing overall security.
 

DigiCert delivers advanced PKI solutions, including digital certificates for authenticating users, devices, and applications. Their offerings also include certificate management systems and automation tools, simplifying the deployment and management of PKI across various industries.
 

Public Key Infrastructure Market Companies

Major players operating in the public key infrastructure industry are:

• Assa Abloy Group (HID Global)
• Comodo
• DigiCert
• DocuSign Inc 
• Entrust Datacard
• Futurex
• GlobalSign
• IBM
• Microsoft
• Verisign
   

Public Key Infrastructure Industry News

• In December 2024, Eviden was awarded a significant contract to enhance the security of France's Cooperative Intelligent Transport Systems (C-ITS) through the deployment of its IDnomic C-ITS Public Key Infrastructure (PKI). This initiative aims to ensure secure and interoperable communications between connected road infrastructure and road users. The IDnomic C-ITS PKI will play a crucial role in safeguarding the information exchanged between vehicles, road infrastructure, and other road users.
   
• In September 2024, Seventh Sense unveiled SenseCrypt, an innovative platform that combines a privacy-preserving face-based public key infrastructure (PKI) with an electronic identity (eID) solution. This technology aims to enhance secure identity verification while addressing privacy concerns associated with biometric data. The system generates digital IDs known as SensePrints, which can be represented as QR codes on various physical documents.
   

The public key infrastructure (PKI) market research report includes in-depth coverage of the industry with estimates & forecasts in terms of revenue ($ Mn/Bn) from 2021 to 2034, for the following segments:

Click here to Buy Section of this Report

Market, By Component

• Solution
• Service
  • Professional service
  • Managed service

Market, By Deployment Mode

• On-premise
• Cloud

Market, By Organization Size

• Large enterprise
• SMEs

Market, By Application

• BFSI
• IT & telecom
• Retail
• Healthcare
• Manufacturing
• Education
• Government & defense
• Others

The above information is provided for the following regions and countries:

• North America
  • U.S.
  • Canada
• Europe
  • UK
  • Germany
  • France
  • Italy
  • Spain
  • Russia
  • Nordics
• Asia Pacific
  • China
  • India
  • Japan
  • South Korea
  • ANZ
  • Southeast Asia
• Latin America
  • Brazil
  • Mexico
  • Argentina
• MEA
  • UAE
  • Saudi Arabia
  • South Africa