CISO Tribune

Vendor comparison · 2 companies

BSI vs Grant Thornton

BSI offers services and expertise in standards development, certification, training and assessment. Grant Thornton sells cybersecurity advisory services that help security and privacy programs operate continuously through connected initiatives. CISO Tribune files both under Security consulting and advisory. This page sets the two records side by side: what each sells, where it is based, who owns and funds it, the customers it names and its recent news, each fact numbered to its source.

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  • BSI
  • Grant Thornton
BSI vs Grant Thornton: Products, Customers and Funding Compared
BSIBSI offers services and expertise in standards development, certification, training and assessment.bsigroup.comGrant ThorntonGrant Thornton sells cybersecurity advisory services that help security and privacy programs operate continuously through connected initiatives.grantthornton.com
What it sells
  • Standards development[3]BSI offers services and expertise in standards development.
  • Certification[2][3]BSI assesses, certifies, tests and audits people, products and processes.
  • Training[3]BSI offers courses that are continually updated with global trends and regulatory changes.
  • Consulting services[3]BSI offers consulting services for managing risk across an organization.
  • Software solutions[3]Software for managing audit, compliance and supply chain activities.
  • Tracked Changes[5]A variant of a standard that identifies differences from its previous version.
  • Technology Modernization[2][6]Advisory work on updating an organization's technology.
  • Outsourcing Services[5]Outsourcing services that keep clients focused on their core.
Categories
Headquarters
Not stated on its pagesNot stated on its pages
Founded
Not stated on its pagesNot stated on its pages
Ownership and funding
Not stated on its pagesNot stated on its pages
Named customers
Not stated on its pagesNot stated on its pages
Recent news
Not stated on its pages
  • November 2, 2026Grant Thornton Advisors announced, together with New Mountain Capital and CBIZ, that it completed its $5 billion acquisition of CBIZ.[13]
G2 and Gartner Peer Insights
  • G2: Not stated on its pages
  • Gartner Peer Insights: Not stated on its pages
  • G2: listed, seen November 3, 2026[3]
  • Gartner Peer Insights: Not stated on its pages
Who it fits
From its own pages, BSI collaborates with clients and partners across many industries. BSI recommends its own version of some standards for organisations operating in or with the UK. In our reading, BSI's maritime structures standard is aimed at people involved in the planning, design, procurement or operation of maritime access infrastructure. BSI's maritime structures standard addresses organizations responsible for designing or maintaining infrastructure that connects vessels with shore-based facilities. BSI's software solutions are aimed at organizations managing audit, compliance and supply chain activities and regulatory information.From its own pages, Grant Thornton sells audit services to private equity-backed and owner-managed companies. Not-for-profit and higher education organizations are named as audit clients. Grant Thornton's cybersecurity advisory services are aimed at security and privacy programs. Adopters of blockchain, digital assets and Web3 are named as a group Grant Thornton serves. Grant Thornton's buy-side diligence draws on partnership with private equity investors.
Last verified
October 14, 2026October 14, 2026

Where they overlap

  • Security consulting and advisory is the primary category of both BSI and Grant Thornton.

Where they differ, field by field

  • BSI lists Standards development, Certification, Training, Consulting services, Software solutions and 1 more. Grant Thornton lists Technology Modernization and Outsourcing Services.

How they differ

BSI describes itself as the UK National Standards Body and offers services in standards development, certification, training and assessment. BSI also sells consulting services for managing risk across an organization, and software for managing audit, compliance and supply chain activities. BSI states that it does not provide management system or product consultancy and certification to the same client where there may be a conflict of interest.

Grant Thornton sells cybersecurity advisory services aimed at helping security and privacy programs operate continuously through connected initiatives. It also names data privacy consulting, identity governance and access management, and information security consulting and cyber defense. Beyond security, Grant Thornton sells technology modernization advisory work, including IT strategy, application portfolio strategy and IT cost optimization, as well as outsourcing services.

The overlap is in risk and compliance work: BSI offers risk consulting and audit and compliance software, while Grant Thornton offers integrated risk management and audit. On recent activity, Grant Thornton Advisors announced on November 2, 2026, with New Mountain Capital and CBIZ, that it completed its $5 billion acquisition of CBIZ. Grant Thornton says it works across a network of 156+ markets.

What it sells: BSI

What Standards development does[3]
BSI offers services and expertise in standards development, certification, training and assessment. BSI is the UK National Standards Body and works to improve quality, safety and well-being through standardization.
What Certification does[2][3]
BSI assesses, certifies, tests and audits people, products and processes with the support of its experts. BSI states a commitment to providing its clients with impartial and independent certification services.
What Training does[3]
BSI offers courses that are continually updated with the latest global trends and regulatory changes. BSI offers training alongside standards, certification and expertise.
What Consulting services does[3]
BSI offers consulting services for managing risk across an entire organization. BSI does not provide management system or product consultancy services and certification services to the same client where there may be a conflict of interest.

What it sells: Grant Thornton

What Technology Modernization does[2][6]
Grant Thornton's technology modernization team applies deep technology, data, cloud and automation experience with proven partners to find the path to client goals. Offerings named include IT strategy, application portfolio strategy and IT cost optimization.

Questions about BSI and Grant Thornton

What do BSI and Grant Thornton sell?
BSI sells Standards development, Certification, Training, Consulting services, Software solutions and 1 more. Grant Thornton sells Technology Modernization and Outsourcing Services.
Are BSI and Grant Thornton in the same category?
Yes. Security consulting and advisory is the primary category of both on CISO Tribune.
Who are BSI and Grant Thornton sold to?
From its own pages, BSI collaborates with clients and partners across many industries. From its own pages, Grant Thornton sells audit services to private equity-backed and owner-managed companies.
What have BSI and Grant Thornton announced recently?
November 2, 2026: Grant Thornton Advisors announced, together with New Mountain Capital and CBIZ, that it completed its $5 billion acquisition of CBIZ.

About BSI

BSI offers services and expertise in standards development, certification, training and assessment. BSI is the UK National Standards Body and works to improve quality, safety and well-being through standardization. BSI has specialized capabilities in areas including energy management, supply chain risk and digital security. BSI offers standards for guidance, training, certification and expertise to its clients.[3]

BSI assesses, certifies, tests and audits people, products and processes with the support of its experts. BSI offers consulting services for managing risk across an entire organization. BSI offers software solutions for managing audit, compliance and supply chain activities and regulatory information. BSI offers courses that are continually updated with the latest global trends and regulatory changes.[3]

BSI states a commitment to providing its clients with impartial and independent certification services. BSI does not provide management system or product consultancy services and certification services to the same client where there may be a conflict of interest.[3]

BSI collaborates with clients and partners across many industries. BSI works with partners to help shape standards for the common good. BSI describes its aim in digital trust as shaping society by developing a resilient digital future that respects privacy, safety, security and reliability. BSI provides information on the revision status of popular ISO standards, including ISO 9001 and ISO 45001. BSI embeds sustainability into its own business and services.[3]

Access to related modules is exclusive to module subscribers. In a tracked changes document, additions, deletions and other content revisions are displayed as underlined or strikethrough text. BSI recommends its own version of some standards for organisations operating in or with the UK.[4][5]

BS 6349-8:2026 provides recommendations covering the design and delivery of vehicle linkspans, ramps and seaport passenger boarding bridges. BSI's maritime structures code of practice covers structural elements and the integration of mechanical systems. BSI's revised maritime structures publication reflects modern procurement practices and contemporary design requirements. BS EN 13748-2:2004 specifies the materials, properties and methods of testing for unreinforced cement-bound terrazzo tiles that are factory made and sold ready to be placed. BSI's standard on terrazzo tiles for external use covers tiles intended for external use, including roofing applications, in pedestrian areas such as walkways, terraces, commercial centres and swimming pools.[7]

Between 2001 and 2010, a 12-part series of standards was developed covering the structural design, construction and maintenance of pavements using modular paving units. BSI's pavement design code of practice excludes the design of permeable pavements which collect, attenuate and provide a drainage feature. BSI's pavement design code of practice allows reused materials provided they meet the recommendations of the appropriate clauses. BSI's whistleblowing management systems guidelines provide a framework for establishing a whistleblowing system within an organization. Organizations worldwide increasingly want to introduce or improve internal policies and processes for handling whistleblowing. Whistleblowing is the act of reporting suspected wrongdoing or risk of wrongdoing.[4][8]

BSI's timber in joinery standard helps determine the characteristics and classify, by appearance, the quality of timber in joinery. Timber joinery is a traditional post and beam wood construction technique that connects wood members without metal fasteners. Flexible sheet heating elements are converted into heating units that are incorporated into the building according to the instructions.[2][4][5][9][10]

BSI on the record

Sources

BSI full record

  1. [1]CybersecurityBSI Group · bsigroup.com · undated page, accessed October 14, 2026 · Tier A
  2. [2]bsigroup.comBSI Group · bsigroup.com · undated page, accessed October 14, 2026 · Tier A
  3. [3]Accelerating Progress Towards a Sustainable World | BSI UKBSI · undated page, accessed November 10, 2026 · Tier A
  4. [4]BS ISO 37002:2021 Whistleblowing management systemsBSI · published July 31, 2021 · Tier A
  5. [5]BS EN 1279-1:2018 Insulating glass unitsBSI · published August 31, 2018 · Tier A
  6. [6]BS 6349-8:2026 Maritime structuresBSI · published August 31, 2026 · Tier A
  7. [7]BS EN 13748-2:2004 Terrazzo tiles for external useBSI · published July 13, 2004 · Tier A
  8. [8]BS 7533-101:2021 Pavements code of practiceBSI · published November 30, 2021 · Tier A
  9. [9]BS EN 942:2007 Timber in joineryBSI · published March 30, 2007 · Tier A
  10. [10]BS EN IEC 60335-2-96 Flexible sheet heating elementsBSI · published April 30, 2022 · Tier A

Grant Thornton full record

  1. [1]Cyber & Privacy | Grant ThorntonGrant Thornton · undated page, accessed October 14, 2026 · Tier A
  2. [2]Audit & Assurance, Tax and Advisory Services | Grant ThorntonGrant Thornton · undated page, accessed November 1, 2026 · Tier A
  3. [3]Grant Thornton Reviews 2026: Details, Pricing, & Features | G2G2 · undated page, accessed November 1, 2026 · Tier C
  4. [4]2026 AI Impact Survey Report | Grant ThorntonGrant Thornton · undated page, accessed November 3, 2026 · Tier A
  5. [5]Advisory Services | Grant ThorntonGrant Thornton · undated page, accessed November 3, 2026 · Tier A
  6. [6]Technology Modernization | Grant ThorntonGrant Thornton · undated page, accessed November 3, 2026 · Tier A
  7. [7]Transaction Advisory | Grant ThorntonGrant Thornton · undated page, accessed November 3, 2026 · Tier A
  8. [8]Audit & Assurance Services | Grant ThorntonGrant Thornton · undated page, accessed November 3, 2026 · Tier A
  9. [9]Financial Statement Audits | Grant ThorntonGrant Thornton · undated page, accessed November 3, 2026 · Tier A
  10. [10]Audit Technology Services | Grant ThorntonGrant Thornton · undated page, accessed November 3, 2026 · Tier A
  11. [11]Tax Technology & Transformation | Grant ThorntonGrant Thornton · undated page, accessed November 3, 2026 · Tier A
  12. [12]About Grant Thornton | Grant ThorntonGrant Thornton · undated page, accessed November 3, 2026 · Tier A
  13. [13]Newsroom | Grant ThorntonGrant Thornton · published November 2, 2026 · Tier A

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