Each firm described from its public positioning — ICFR strengths, pricing, timelines, and the buyer it genuinely fits best
First1. Tranquility Cybersecurity
Auditor-Led SOC 1 (SSAE 18) Readiness & CPA Coordination • Gurugram HQ (Welldone Tech Park, Sector 48) · Bengaluru office · serving Mumbai
Tranquility Cybersecurity (TCSA) is an auditor-led compliance firm headquartered in Gurugram that serves Mumbai's BFSI ecosystem through a combination of remote delivery and on-site sessions. Every SOC 1 engagement is run end-to-end by named, certified lead auditors — not account managers or a software platform. The firm has delivered 100+ SOC 1 (SSAE 18) engagements for ICFR compliance and 300+ SOC 2 engagements across 1,000+ audits for clients across India, USA, UK, Australia and UAE, and publishes fixed pricing: SOC 1 at ₹4-5 Lakh all-in. For Mumbai payment processors, fund administrators, and payroll platforms, TCSA designs the ICFR control matrix, prepares all documentation, and coordinates directly with the licensed CPA firm that issues the final SOC 1 Type I or Type II report.
Key Strengths
- Named lead auditors on every engagement — Surendra Pal Singh (CISO/DPO, CISA, ISO 27001/27701/42001 LA), Parth Chauhan (ISO 27001/27701/42001 LA, CEH, BE — BITS Pilani), and Saundhi Chauhan (ISO 27001/27701/42001 LA)
- 100+ SOC 1 (SSAE 18) engagements and 300+ SOC 2 engagements across 1,000+ audits to date
- Full ICFR control design for Mumbai verticals: payroll/HCM, payment processors, fund administrators, custodian banks, lending platforms, insurance TPAs, and BaaS providers
- Direct CPA-firm coordination — TCSA prepares your controls and evidence, then manages the handoff to the licensed CPA firm that issues the SOC 1 report
- Fixed, published pricing: SOC 1 at ₹4-5 Lakh (all-in, including the independent CPA examination) — no scope-creep invoicing
- Multi-framework mapping: SOC 1 controls reused for SOC 2, ISO 27001, and RBI requirements so evidence is collected once
- Tranquility Cybersecurity delivers CERT-In audits, end to end, with its CERT-In empanelled partners.
- Indicative Pricing₹4-5 Lakh all-in (fixed)
- Timeline6-10 weeks to audit-ready
- Best ForMumbai fintech, payroll, fund admin, and BFSI outsourcers that want a certified lead auditor — not a sales pipeline — running their SOC 1 with transparent, fixed pricing
Second2. Network Intelligence
BFSI-Focused Cybersecurity & Compliance • Mumbai (Andheri East)
Mumbai-headquartered Network Intelligence (formerly NII Consulting) is one of the city's longest-standing cybersecurity firms, founded in 2001 with a team of 550+ specialists and offices in New York, Amsterdam, Sydney, Dubai, and Singapore. A large share of its work sits in banking, financial services, and insurance — the exact vertical where SOC 1 matters most. Its compliance practice spans SOC 1, SOC 2, ISO 27001, and PCI DSS, and it increasingly pairs advisory with its Transilience AI automation platform for evidence collection.
Key Strengths
- Mumbai headquarters with strong on-the-ground relationships across banks, NBFCs, and payment processors
- Two decades of security consulting depth (founded 2001) and a 550+ person team
- Direct SOC 1 advisory for BFSI outsourcers alongside SOC 2 and ISO 27001
- Transilience AI platform for evidence collection and continuous compliance
- Global delivery hubs for multi-country audit scopes
- Indicative PricingCustom quote
- Timeline3-6 months (indicative)
- Best ForMumbai banks, NBFCs, and BPOs that want a local, BFSI-steeped partner with on-the-ground presence for their SOC 1
Third3. QRC Assurance & Solutions
Multi-Framework Audit & Attestation Services • Navi Mumbai
Navi Mumbai-headquartered QRC Assurance & Solutions, founded in 2016, is an audit and assessment company that delivers SOC 1, SOC 2, and SOC 3 attestation alongside PCI DSS (as a Qualified Security Assessor) and ISO standards. Its client base is concentrated in payments and IT-services outsourcing — exactly the segments where SOC 1's ICFR focus applies. QRC is CERT-In empanelled and positions itself on consolidating several certifications through a single assessment relationship, which is valuable for Mumbai payment companies that hold both SOC 1 and PCI DSS.
Key Strengths
- Local Navi Mumbai base with a payments and processor client concentration relevant to SOC 1
- SOC 1/2/3 attestation alongside PCI DSS (QSA) and ISO 27001 — single-vendor consolidation
- CERT-In empanelled for security assessment work in India
- Asia-Pacific office network for international delivery
- Experienced with ICFR controls for payment switches, card processors, and settlement operators
- Indicative PricingCustom quote
- Timeline3-5 months (indicative)
- Best ForMumbai payment companies and IT-services outsourcers consolidating SOC 1 with PCI DSS under one audit partner
Fourth4. KPMG in India
Big 4 Risk Advisory & Attestation • Mumbai (offices across major metros)
KPMG in India is part of one of the Big Four professional-services networks and runs a large risk advisory and IT audit practice with a major Mumbai presence. Its teams handle SOC 1 readiness, ICFR control design, and SSAE 18 alignment for large enterprises, banks, custodian services, and regulated financial institutions — typically as part of broader internal audit and regulatory programmes. KPMG also fields its own licensed CPA practice, which can issue SOC 1 reports directly for organisations where it is independent.
Key Strengths
- Big 4 brand recognition with boards, regulators, and global counterparties
- Deep BFSI bench strength in Mumbai — India's financial capital
- Integrated regulatory expertise for RBI, SEBI, and IRDAI-supervised environments
- Internal audit and ICFR expertise aligned with SOC 1 control objectives
- Licensed CPA practice that can issue the SOC 1 report itself (where independence rules permit)
- Global delivery model suited to multi-entity, multi-country audit scopes
- Indicative PricingCustom quote (enterprise budgets)
- Timeline4-9 months (indicative)
- Best ForLarge Mumbai banks, custodian services, and financial institutions with enterprise budgets that need Big 4 credibility on their SOC 1 report
Fifth5. SISA
Forensics-Driven Payment Security & Compliance • Bengaluru (serving Mumbai)
Bengaluru-headquartered SISA is a forensics-driven cybersecurity company best known in payment security, where it operates as a PCI Qualified Security Assessor and PCI Forensic Investigator for banks and fintechs across 40+ countries, protecting 1,000+ organisations. Its teams bring real breach-investigation insights into control design, which strengthens ICFR controls for payment processors and card-services outsourcers in Mumbai's financial district. SISA pairs SOC 1 readiness with PCI DSS and SOC 2 where multiple frameworks apply.
Key Strengths
- Payment-security depth: PCI DSS, PCI PIN, and forensic investigation for banks and fintechs
- Forensics-informed ICFR controls — recommendations shaped by real breach investigations
- Global assessor footprint spanning 40+ countries and 1,000+ organisations
- Multi-framework coverage: SOC 1, SOC 2, ISO 27001, and payment-industry standards
- Training arm and proprietary security products alongside services
- Indicative PricingCustom quote
- Timeline3-6 months (indicative)
- Best ForMumbai payment processors, card-services outsourcers, and banks that want SOC 1 from a payment-security and forensics specialist
Sixth6. ControlCase
IT Certification & Compliance as a Service • United States (significant India delivery presence)
ControlCase is a US-headquartered compliance-as-a-service company with a significant delivery presence in India. It offers SOC 1 attestation support alongside SOC 2, PCI DSS, ISO 27001, and HITRUST, built around a One Audit model that maps a single evidence set across frameworks — attractive for Mumbai BPOs and service providers facing SOC 1 from their banking clients and PCI DSS from their payments clients simultaneously. Its continuous-compliance tooling layers monitoring on top of point-in-time attestation.
Key Strengths
- One Audit model — evidence reuse across SOC 1, SOC 2, PCI DSS, ISO 27001, and HITRUST
- Continuous-compliance monitoring tooling alongside point-in-time attestation
- Large India-based delivery teams with follow-the-sun support
- Particularly suited to organisations managing three or more frameworks concurrently
- Established global brand in certification and attestation services
- Indicative PricingCustom quote
- Timeline3-6 months (indicative)
- Best ForMumbai BPOs and service companies consolidating SOC 1 with three or more additional frameworks under one compliance programme
Seventh7. Deloitte India
Big 4 Assurance, Risk & Advisory • Mumbai (offices across India)
Deloitte India is part of the global Big Four network and maintains a large Mumbai office with dedicated risk advisory, IT audit, and assurance teams. Its SOC 1 practice serves custodian banks, fund administrators, securities back-office outsourcers, and insurance TPAs — institutions where ICFR reporting to user auditors is a contractual requirement. Like KPMG, Deloitte's licensed CPA arm can issue SOC 1 reports directly (where independence rules permit), and its risk advisory teams handle readiness and remediation for clients who need an independent issuer.
Key Strengths
- Big 4 brand credibility with regulators, global banks, and institutional investors
- Mumbai office with dedicated risk advisory and IT audit teams for BFSI
- Deep experience with custodian banks, fund administrators, and securities back-office outsourcers
- Licensed CPA practice that can issue SOC 1 reports (where independence permits)
- Integrated internal audit, ICFR, and regulatory advisory under one roof
- Indicative PricingCustom quote (enterprise budgets)
- Timeline4-9 months (indicative)
- Best ForMumbai custodian banks, fund administrators, and large financial-services outsourcers that need Big 4 assurance on their SOC 1 report