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  • Bid ManagementBid Management reinvented.
  • Compliance Questionnaire ResponseStreamline regulatory compliance responses
  • DDQ ResponseEvery DDQ Response, accurate, validated and audited for you.
  • ESG Questionnaire ResponseRespond to ESG and sustainability assessments
  • PQQ ResponsePre-qualify for more opportunities
  • Questionnaire ResponseAny questionnaire, handled in a flash.
  • RFP ResponseEvery RFP Response, handled your way.
  • RFX ManagementEvery RFX managed, your way.
  • Reference MappingAutomatically cite the right evidence every time
  • Security Questionnaire ResponseAny Security Questionnaire Response handled, whatever the format.
  • Tender ManagementEvery tender response, handled for you.
View all use cases→
  • Bid Management AutomationEvery bid orchestrated your way.
  • Compliance Questionnaire AutomationStreamline regulatory and compliance responses
  • DDQ Questionnaire AutomationEvery DDQ, handled, with certainty and proof.
  • ESG Questionnaire AutomationComplete ESG and sustainability assessments at scale
  • PQQ Questionnaire AutomationPre-Qualify more opportunities with less effort
  • Questionnaire AutomationEvery questionnaire, Automated,
  • RFP AutomationEvery RFP, handled for you. Your way.
  • RFX AutomationOne platform for every request document
  • Reference Mapping AutomationAutomatically link evidence to every answer
  • Security Questionnaire AutomationAny format. Any complexity. Any scale. We handle every security questionnaire, no exceptions.
  • Tender Response AutomationEvery tender response, handled your way.
View all solutions→
  • SEQUESTO aOSThe agentic operating system for commercial teams.
  • Agentic HarnessThe runtime layer that turns model capability into usable work.
  • Agent ForceJames and a specialist agent force built for bid and tender teams.
  • Context & KnowledgeThe knowledge layer that gives agentic work the right context.
  • Data & IntegrationsConnect the aOS to the systems your teams already use.
  • Bid CapabilitiesFlexible workflows for tenders, questionnaires, and structured commercial documents.
  • Products & InterfacesThe workspace layer where people, documents, and agents work together.
  • Security & GovernanceAuditability first, with enterprise security built into the platform.
  • Multi-Model IntelligenceA stable frontier-model foundation for agentic commercial work.
View all products→
  • Consulting & AdvisoryEvery consulting bid, handled. The final word, yours.
  • Facility Management & Infrastructure Multi-lot FM RFPs and tenders, governed, end-to-end
  • Financial Services & InsuranceEvery DDQ, RFI and RFP, handled. The final word, yours.
  • HR Services & StaffingEvery HR and workforce tender, handled for you.
  • Pharma & Life SciencesWin clinical services RFPs and supplier questionnaires
  • Software & ITEvery RFX project and questionnaire, handled.
View all industries→
  • ArticlesBid response, bid operations, applied AI
  • WebinarsIndustry conversations on the agentic shift in response management.
  • GlossaryRFP and bid response terminology, defined.
  • PressSEQUESTO in the news
  • IntegrationsNative to the stack your team already uses.
  • CompareHow does SEQUESTO compare?
SuperNova
SEQUESTO at SuperNova 2026 AntwerpSuperNova 2026 is almost here. And this year, SEQUESTO will be right in the middle of it.Read More→
View all resources→
  • AboutWhy we started. What we believe. Who we serve.
  • CareersHelp enterprise teams win the deals they were too stretched to chase
  • ContactTalk to our team
  • AuthorsAuthors & Contributors
Hiring
SEQUESTO is hiringJoin the team building the agentic OS for commercial teams. Account Executive, open now.Apply→
View all company info→
  • Bid ManagementBid Management reinvented.
  • Compliance Questionnaire ResponseStreamline regulatory compliance responses
  • DDQ ResponseEvery DDQ Response, accurate, validated and audited for you.
  • ESG Questionnaire ResponseRespond to ESG and sustainability assessments
  • PQQ ResponsePre-qualify for more opportunities
  • Questionnaire ResponseAny questionnaire, handled in a flash.
  • RFP ResponseEvery RFP Response, handled your way.
  • RFX ManagementEvery RFX managed, your way.
  • Reference MappingAutomatically cite the right evidence every time
  • Security Questionnaire ResponseAny Security Questionnaire Response handled, whatever the format.
  • Tender ManagementEvery tender response, handled for you.
View all use cases→
  • Bid Management AutomationEvery bid orchestrated your way.
  • Compliance Questionnaire AutomationStreamline regulatory and compliance responses
  • DDQ Questionnaire AutomationEvery DDQ, handled, with certainty and proof.
  • ESG Questionnaire AutomationComplete ESG and sustainability assessments at scale
  • PQQ Questionnaire AutomationPre-Qualify more opportunities with less effort
  • Questionnaire AutomationEvery questionnaire, Automated,
  • RFP AutomationEvery RFP, handled for you. Your way.
  • RFX AutomationOne platform for every request document
  • Reference Mapping AutomationAutomatically link evidence to every answer
  • Security Questionnaire AutomationAny format. Any complexity. Any scale. We handle every security questionnaire, no exceptions.
  • Tender Response AutomationEvery tender response, handled your way.
View all solutions→
  • SEQUESTO aOSThe agentic operating system for commercial teams.
  • Agentic HarnessThe runtime layer that turns model capability into usable work.
  • Agent ForceJames and a specialist agent force built for bid and tender teams.
  • Context & KnowledgeThe knowledge layer that gives agentic work the right context.
  • Data & IntegrationsConnect the aOS to the systems your teams already use.
  • Bid CapabilitiesFlexible workflows for tenders, questionnaires, and structured commercial documents.
  • Products & InterfacesThe workspace layer where people, documents, and agents work together.
  • Security & GovernanceAuditability first, with enterprise security built into the platform.
  • Multi-Model IntelligenceA stable frontier-model foundation for agentic commercial work.
View all products→
  • Consulting & AdvisoryEvery consulting bid, handled. The final word, yours.
  • Facility Management & Infrastructure Multi-lot FM RFPs and tenders, governed, end-to-end
  • Financial Services & InsuranceEvery DDQ, RFI and RFP, handled. The final word, yours.
  • HR Services & StaffingEvery HR and workforce tender, handled for you.
  • Pharma & Life SciencesWin clinical services RFPs and supplier questionnaires
  • Software & ITEvery RFX project and questionnaire, handled.
View all industries→
  • ArticlesBid response, bid operations, applied AI
  • WebinarsIndustry conversations on the agentic shift in response management.
  • GlossaryRFP and bid response terminology, defined.
  • PressSEQUESTO in the news
  • IntegrationsNative to the stack your team already uses.
  • CompareHow does SEQUESTO compare?
SuperNova
SEQUESTO at SuperNova 2026 AntwerpSuperNova 2026 is almost here. And this year, SEQUESTO will be right in the middle of it.Read More→
View all resources→
  • AboutWhy we started. What we believe. Who we serve.
  • CareersHelp enterprise teams win the deals they were too stretched to chase
  • ContactTalk to our team
  • AuthorsAuthors & Contributors
Hiring
SEQUESTO is hiringJoin the team building the agentic OS for commercial teams. Account Executive, open now.Apply→
View all company info→
Request Demo→

Use Cases

  • Bid Management
  • Compliance Questionnaire Response
  • DDQ Response
  • ESG Questionnaire Response
  • PQQ Response
  • Questionnaire Response
  • RFP Response
  • RFX Management
  • Reference Mapping
  • Security Questionnaire Response
  • Tender Management

Solutions

  • Bid Management Automation
  • Compliance Questionnaire Automation
  • DDQ Questionnaire Automation
  • ESG Questionnaire Automation
  • PQQ Questionnaire Automation
  • Questionnaire Automation
  • RFP Automation
  • RFX Automation
  • Reference Mapping Automation
  • Security Questionnaire Automation
  • Tender Response Automation

Product

  • SEQUESTO aOS
  • Agentic Harness
  • Agent Force
  • Context & Knowledge
  • Data & Integrations
  • Bid Capabilities
  • Products & Interfaces
  • Security & Governance
  • Multi-Model Intelligence

Industries

  • Consulting & Advisory
  • Facility Management & Infrastructure
  • Financial Services & Insurance
  • HR Services & Staffing
  • Pharma & Life Sciences
  • Software & IT
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Authors
  1. Home
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  4. Evrard t'Serstevens

Evrard t'Serstevens

CTO & Co-Founder

Architectural decisions in agentic operating systems and bid platforms.

Evrard t'Serstevens is SEQUESTO's co-founder and Chief Technology Officer. He holds the architectural decisions that define the platform. Where the market treats agentic systems as feature layers, Evrard built SEQUESTO as an operating system with agents as runtime primitives. That choice cascades into every capability the platform surfaces. He writes and speaks on the architectural consequences of treating bids as compound documents under agent assembly, and why most platforms get the governance layer wrong. His work ensures SEQUESTO's architecture remains legible to engineers and defensible under enterprise scrutiny.

Expertise

Agentic architectureOperating system designBid platform engineering

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Speaking

Webinars featuring Evrard t'Serstevens

REC
60 min
Agentic AI

Bridging the Agentic Gap

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Patrick DalvinckEvrard t'Serstevens