B2B SaaS Platform
One Control Set, Two Frameworks: ISO 27001 + SOC 2 Type II
Industry
B2B SaaS
Company Size
Growth-stage SaaS (100-250 employees)
Location
Global (India HQ, US & EU customers)
A growth-stage B2B SaaS platform selling into enterprises across the United States and Europe kept hitting the same wall in late-stage deals: security review. European buyers asked for ISO/IEC 27001 certification as proof of a managed information-security program; US buyers asked for a SOC 2 Type II report. The company had neither, so deals stalled in vendor security review on both continents. Treating the two as separate, sequential projects would have meant standing up two compliance programs, writing two sets of policies, and preparing evidence twice — slow and expensive for a team that needed to keep shipping product.
The Challenge
Enterprise security questionnaires were blocking revenue on both sides of the Atlantic. US prospects required a SOC 2 Type II report; EU and international prospects required ISO 27001. The company needed both credentials, but could not afford to run two full, independent compliance programs back to back while continuing to scale.
US enterprise buyers required a SOC 2 Type II report before procurement would approve the vendor — a hard gate on every US deal of meaningful size.
European and international buyers required ISO/IEC 27001 certification as their equivalent proof of information-security maturity.
Running the two frameworks as separate sequential projects meant duplicated policies, duplicated controls, and evidence prepared twice — roughly doubling the cost and timeline.
A lean security and engineering function could not absorb two parallel compliance programs without slowing the product roadmap.
TCSA's Solution
TCSA treated ISO 27001 and SOC 2 as two reports off one program rather than two programs. We built a single unified control set, mapped each control to both ISO/IEC 27001 Annex A and the relevant SOC 2 Trust Services Criteria, and implemented and evidenced each control once. That mapping is where the leverage lives: the large majority of what an ISO 27001 ISMS and a SOC 2 control environment require is the same underlying security practice, expressed in two vocabularies. By unifying them, the duplicated work that two separate audits would have demanded was cut by up to 60%.
Frameworks
Timeline
Single program — both frameworks off one control set
Our Approach
Unified Control Set: Built one control library and mapped every control to both ISO/IEC 27001 Annex A and the SOC 2 Trust Services Criteria (Security, plus the additional categories in scope). Where the two standards expressed the same requirement — access control, encryption, change management, logging, incident response, vendor management — the control was implemented and documented a single time to satisfy both.
Evidence Once, Use Twice: Designed the evidence model so a single artefact — an access review, a vulnerability scan, a change ticket — could be referenced by both the ISO 27001 audit and the SOC 2 examination. This removed the duplicate evidence collection that running the frameworks separately would have forced.
Questionnaire-Ready Library: Structured the control set and its evidence as a reusable answer key for enterprise security questionnaires, so the SaaS team could respond to US and EU buyers from one consistent source of truth rather than improvising each time.
Engineering Integration: Embedded controls into the team's existing DevOps workflow — version control, CI/CD, cloud configuration, and access tooling — so compliance ran inside normal engineering practice and the product roadmap kept moving.
Results & Impact
Up to 60%
Less Audit Duplication
2
Frameworks Off One Set
US + EU
Markets Unblocked
Key Outcomes
Earned both an ISO/IEC 27001 certificate and a SOC 2 Type II report from a single unified control set, rather than running two independent compliance programs.
Removed up to 60% of the duplicated audit work that pursuing the two frameworks separately would have required — each control implemented once, each piece of evidence collected once.
Cleared enterprise security questionnaires from both US and EU buyers using one mapped control library as the source of truth, shortening and standardising vendor security review.
Key Success Factors
Unified Control Set
TCSA mapped one control library to both ISO/IEC 27001 Annex A and the SOC 2 Trust Services Criteria, so a single implementation satisfied both frameworks instead of two parallel programs.
Evidence Once, Use Twice
A single evidence model fed both the ISO 27001 audit and the SOC 2 examination, eliminating duplicate evidence collection and the rework that comes with it.
Questionnaire-Ready Library
The mapped control set doubled as an answer key for US and EU enterprise security questionnaires, giving the sales team one consistent source of truth.
Engineering Integration
Controls were built into the existing DevOps workflow so compliance ran inside normal engineering practice and product velocity was preserved.
Results at a Glance
| Outcome | Before TCSA | After Engagement |
|---|---|---|
| Frameworks held | Neither — blocked on questionnaires | ISO 27001 certified + SOC 2 Type II report |
| Control set | Two programs assumed, run separately | One unified control set serving both |
| Duplicated audit work | Evidence prepared twice | Up to 60% less duplication across the two audits |
| US enterprise questionnaires | Stalled in vendor security review | Cleared with mapped evidence |
| EU enterprise questionnaires | Repeated back-and-forth | Cleared from the same control library |
Anonymized client outcome. Engagement results vary by scope; figures reflect this engagement.
Frequently Asked Questions
Why would a SaaS company need both ISO 27001 and SOC 2?
They are the two security credentials enterprise buyers ask for most, split largely by geography and buyer preference. European and international procurement teams typically expect ISO/IEC 27001 certification, while US enterprises usually ask for a SOC 2 Type II report. A global SaaS selling into both markets is repeatedly asked for one or the other, so holding both removes a recurring blocker from the sales cycle.
How much overlap is there between ISO 27001 and SOC 2?
A substantial amount. Access control, encryption, change management, logging and monitoring, incident response, vendor management, and risk assessment all appear in both ISO/IEC 27001 Annex A and the SOC 2 Trust Services Criteria. TCSA maps these into a single control set so the same implementation and the same evidence satisfy both frameworks, rather than standing up two parallel programs.
Does running ISO 27001 and SOC 2 together really cut the work by that much?
On this engagement, building one unified control set removed up to 60% of the duplicated effort versus pursuing the two frameworks as separate projects. The saving is concentrated in the shared work — writing each policy once, configuring each technical control once, and collecting each piece of evidence once instead of twice.
How does dual compliance help with enterprise security questionnaires?
Security questionnaires from US and EU enterprises ask many of the same underlying questions about how data is protected. With a mapped control library behind both an ISO 27001 certificate and a SOC 2 Type II report, the SaaS team can answer those questionnaires from a single source of truth — pointing to the relevant control and its evidence rather than improvising a fresh response each time.
Are these results typical for TCSA engagements?
TCSA has delivered 500+ audits — including 250+ SOC 2 attestations — across India, USA, UK, Australia and UAE. Every engagement is scoped to the client's real systems, so timelines and the exact overlap vary, but a unified control set that lets two frameworks reinforce each other is the consistent approach.
Written By Expert Auditors
Earn ISO 27001 and SOC 2 from one program
TCSA has delivered 500+ audits — including 250+ SOC 2 attestations — across India, USA, UK, Australia and UAE. Let's map your two frameworks onto one control set.
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