SOC 2 vs TISAX: general assurance vs automotive industry standard
SOC 2 is a general-purpose security attestation; TISAX is the automotive industry's own assessment, built on the VDA ISA catalog and effectively required by European OEMs and their supply chains.
A general standard versus an industry mechanism
SOC 2 is an AICPA attestation that any service organization can pursue, with a CPA firm reporting on controls against the Trust Services Criteria led by the mandatory Security category. TISAX (Trusted Information Security Assessment Exchange) is industry-specific: it is the information security assessment and exchange mechanism for the automotive sector, governed by the ENX Association and based on the German automotive association's VDA Information Security Assessment (VDA ISA) catalog. Rather than producing a report a vendor hands out at will, TISAX issues labels recorded on the ENX exchange platform, where automotive partners grant each other access to results. The frameworks share DNA with ISO 27001-style controls, but TISAX is tightly coupled to the needs and supply-chain dynamics of carmakers.
How TISAX is structured
TISAX uses three assessment levels and a set of assessment objectives, commonly called labels, that match the sensitivity of what a supplier handles. Assessment Level 1 is essentially a published self-assessment, Level 2 adds plausibility checks and evidence review by an approved audit provider (typically remote), and Level 3 involves the deepest scrutiny including on-site assessment for the most sensitive data. Labels cover objectives such as information with high or very high protection needs, data protection, and prototype protection categories like test vehicles and prototype parts, with the most sensitive objectives requiring the higher levels. The VDA ISA catalog underpinning all of this advanced to version 6, effective April 2024, which added an availability objective. A TISAX label is generally valid for three years before reassessment.
Industry and geography drive the requirement
TISAX is recognized and required across VDA members and major manufacturers, with European OEMs such as Volkswagen, Audi, and BMW expecting it from suppliers that touch sensitive information. If you are in an automotive supply chain handling design data, prototypes, or personal data on behalf of a carmaker, TISAX is frequently a precondition for doing business, not an optional differentiator. SOC 2 carries little of that specific weight inside automotive procurement, where buyers look for the TISAX label and the relevant assessment objectives on the ENX exchange. The geography skews European because the scheme originated with the German automotive industry, though its reach follows the global supply chains of those manufacturers.
Where the two overlap and diverge
Both frameworks rest on a foundation of recognizable information security controls, so an organization with a mature SOC 2 or ISO 27001 program will find much of its evidence transferable into a TISAX assessment. The divergence is in audience and content: SOC 2 speaks to broad enterprise trust and includes criteria categories like Processing Integrity and Privacy that TISAX does not frame the same way, while TISAX adds automotive-specific objectives such as prototype protection that SOC 2 never contemplates. Neither replaces the other, because a carmaker wants the TISAX label specifically and a North American SaaS buyer wants the SOC 2 report specifically. The efficient approach is to reuse common control evidence while accepting that each track has unique requirements.
When an automotive supplier needs TISAX alongside SOC 2
A supplier whose customers are exclusively European OEMs and tier-one automotive partners should treat TISAX as the primary requirement, since it is what unlocks contracts in that ecosystem. A company that also sells software or services into general enterprise or North American markets may need SOC 2 as well to satisfy those buyers, leading many automotive-adjacent vendors to hold both. The right assessment level and labels depend entirely on the data you handle, so scoping with your customers and an approved TISAX audit provider comes first. Costs for both are quote-based and vary with scope, level, and number of sites, so treat any figures as estimates and let the assessment provider and your audit firm size the actual effort.