Fractional security teams for venture-backed SaaS
Get security off your plate and get back to building.
An enterprise buyer wants a SOC 2 report. Another sends a security questionnaire. Your compliance platform gives you a dashboard, and the work still lands with your founder or CTO. TSC Security helps run that work with compliance operations, security leadership, and engineering support at the level you need.
Keep building while buyer reviews and audit preparation move forward.
What we cover
Security Leadership / vCISO
Priorities, roadmap, and buyer conversations
GRC and compliance operations
Controls, policies, evidence, and audit coordination
Security Engineering
Engineering support scoped to the work
Buyer Security Reviews
Questionnaires, evidence requests, and diligence calls
The problem
Security has become your second job.
You have a product to build and customers to serve. Now you are also answering questionnaires, gathering audit evidence, deciding which controls to implement, and explaining gaps to buyers. Those jobs need different skills, with clear owners for the work that stays with your team.
Leadership, compliance operations, and engineering
The right people to run the work
We work out which capabilities you need and take responsibility for the agreed security work. Your leadership keeps ownership of business decisions and risk acceptance; your product and engineering teams keep ownership of their systems.
Security Leadership
Set priorities around business risk, own the roadmap, explain decisions to leadership, and join the buyer conversations that need a security leader.
GRC and compliance operations
Run agreed controls, maintain policies and evidence, coordinate audit preparation, and keep the program working between audits.
Security Engineering
Hands-on work with engineering and IT on cloud, identity, endpoints, vulnerabilities, and secure development.
Buyer security reviews
Every buyer answer has work behind it.
A platform can organize evidence and tasks. Your program also needs risk decisions, people to operate controls, and someone accountable for the answers.
We explain what is in place today. When a control still needs to be built, the answer includes a practical plan, an owner, and a date. The same work continues after the audit: evidence stays current, controls keep running, and the roadmap changes with your company and risks.
Choose the level of involvement
Support that grows with your security program.
Choose ongoing compliance support, add fractional CISO leadership, or bring in a full team with hands-on engineering included in the agreed scope. Explore engagements.
GRC and compliance support
Run controls, maintain evidence and policies, prepare for audits, and support customer diligence.
GRC plus fractional CISO
Add security priorities, a roadmap, executive communication, and leadership in buyer conversations.
Full fractional security team
Bring compliance operations, security leadership, and hands-on engineering together.
Who TSC Security serves
Built for startups that have outgrown founder-led security
- Venture-backed SaaS companies from seed through growth
- Founders and CTOs handling security alongside product and customer work
- AI and healthcare technology companies navigating customer security reviews and compliance requirements
- SaaS companies facing demanding buyer requirements
- Growing teams that need security expertise before building a full internal function
Outcomes
Security should help the company move faster, not become another bottleneck.
How engagements work
A practical operating cycle
Assess
Understand the architecture, business model, customers, regulatory needs, current controls, and commercial priorities.
Prioritize
Create a risk-based roadmap with clear owners and practical sequencing.
Implement
Put policies, workflows, and technical safeguards into operation with internal teams.
Operate
Run recurring controls, diligence, evidence, reporting, and program management.
Improve
Review outcomes and evolve the program as the company, product, and risks change.
Services
Start with the need driving the work
Security Team
TSC Security combines fractional CISO leadership, compliance operations, and security engineering for venture-backed SaaS companies and growing technology teams.
View serviceSecurity Leadership
vCISO and security leadership for SaaS and technology companies that need accountable direction and ongoing program operation.
View serviceSOC 2 Readiness
Prepare for an independent SOC 2 examination, operate controls, organize evidence, and maintain the program after report issuance.
View serviceISO 27001 Readiness
Design, implement, and maintain an information security management system that reflects the company's risks and operations.
View serviceSecurity Questionnaire Support
Accurate, coordinated responses to enterprise questionnaires, evidence requests, customer calls, and contract security requirements.
View serviceSecurity Engineering
DevSecOps and hands-on cloud, identity, secure development, vulnerability, endpoint, and logging work for growing engineering teams.
View serviceAI Risk Assessments
Assess company and product AI use, sensitive data, providers, oversight, security threats, governance, and incident readiness.
View serviceManaged Security
Where it fits the engagement, ongoing operation of agreed security controls across endpoints, identity, vulnerabilities, awareness, and evidence.
View serviceWho you will work with
Security practitioners who work as part of your team
TSC Security was founded by Dave Anderson, former CISO at mParticle and the security leader who built the function at Greenhouse. He has built security programs and sat with enterprise buyers to explain how they work. That experience shapes our approach: practical risk decisions, accurate answers, and security work that fits how your company builds and sells.
Tell us what is taking time from your team.
Is a buyer review slowing a deal? Is audit preparation landing with your CTO? Tell us what triggered the work and who handles security today. We'll discuss the priorities and level of support that fits.
Talk through your security needs