Harpreet Singh, MBA
Founder, Thalamus AI
With 12+ years in AI and enterprise software, including GenAI product work at Travelers Group, Harpreet writes about AI RFP software, AI bid tools, proposal operations, RFP response automation, and the future of enterprise bid management.
DDQ Automation Software for B2B Vendor Teams: Full Reviews
1. Thalamus AI - Best DDQ Automation Software for Mixed-Workload Enterprise Vendor Teams
Best for: Enterprise B2B and SaaS vendor teams whose inbound DDQs arrive alongside formal RFPs, security questionnaires, and vendor proposals, one platform covering all formats without a Q&A library to maintain.
G2 rating: 5.0 / 5 ↗ G2
Pricing: Unlimited users, unlimited projects, one subscription. Three-month pilot pack available.
AI approach: Multi-agent agentic AI with a verified entity knowledge layer and closed-loop institutional learning.
What Thalamus AI Does Well for DDQ Automation?
Handles DDQs, RFPs, security questionnaires, and proposals in one platform - Thalamus AI is a strong fit for teams whose inbound workload spans formats; eliminating the tool-per-format overhead reduces coordination cost and knowledge fragmentation. A DDQ received on Tuesday and an RFP received on Thursday draw from the same verified knowledge layer and route to the same contributors.
No Q&A library to build or maintain - Thalamus AI converts existing policies, compliance documents, past DDQ responses, and certifications into a verified entity knowledge layer, each answer traceable to its source document with a completeness score and last-verified timestamp.
Source citation on every answer - Every AI-generated DDQ response in Thalamus AI references the source document it was drawn from. For enterprise buyers who conduct follow-up due diligence calls, a source-linked response is meaningfully more defensible than an unsourced one.
Browser extension for portal DDQ submissions - Thalamus AI handles questionnaires submitted through Whistic, BitSight, and other portal platforms without switching tabs or copy-pasting.
Subsection-level routing - In Thalamus AI, security DDQ questions route to security engineering; data processing questions route to legal; certification questions route to GRC, with structured approval chains and audit trails throughout.
Institutional memory from every DDQ cycle - Every edit, approval, and correction in Thalamus AI strengthens the knowledge layer for future DDQs. The platform becomes more accurate as the team uses it.
Where Thalamus AI Falls Short?
Not suited for investment management LP questionnaires - If your DDQ need is in investor relations, ILPA or AIMA questionnaires as a fund manager, Thalamus AI is not designed for that use case. See the asset management section below.
Not a pure standalone DDQ tool - Teams whose workload is exclusively DDQs with no RFPs or proposals alongside will find more narrowly optimized tools with faster time-to-value for that specific format.
Initial setup requires time - Entity ingestion, routing configuration, and approval chain setup require upfront investment before the platform runs at full efficiency.
What Real Users Say About Thalamus AI on G2?
"The Content AutoFill accuracy is great. Something I loved most is that the Library doesn't need heavy maintenance, no Q&A-based library." Verified G2 reviewer (View on G2 ↗)
"Our team literally goes from RFP upload to the first draft in under 15 minutes." — Nicholas M., verified G2 reviewer
Who Should Choose Thalamus AI as DDQ Automation Software?
Enterprise B2B and SaaS vendors whose inbound DDQ workload is part of a broader mix of RFPs, security questionnaires, and formal proposals and who want one platform covering all formats with verified, source-linked answers and no manual Q&A database to maintain.
Bring one live DDQ or vendor assessment. We will show you how it compares to your current process. → Start Your 3-Month Pilot
2. HeyIris (Iris AI) - Best DDQ Automation Software for Confidence-Scored Answers
Best for: B2B SaaS presales and sales engineering teams whose DDQ volume is primarily vendor security and operational due diligence, and who need every answer to show its source and confidence level before submission.
G2 rating: 4.9 / 5 ↗ G2
Pricing: Per-user; unlimited collaborators. No public pricing.
AI approach: Document-based retrieval with inline source citations and confidence scores on every answer.
What HeyIris Does Well?
Confidence score and source citation on every DDQ answer - For vendor teams where an incorrect DDQ response creates legal or contractual exposure, this eliminates the need to manually verify every AI-generated answer before submission.
Portal AutoFill for Whistic and BitSight - Handles portal-based DDQ submissions directly in the portal interface without copy-paste.
Unlimited collaborators on per-user plans - Legal, security, and compliance contributors participate without additional seat costs.
4.9/5 G2 rating across 66+ reviews - the strongest combination of rating and review volume for a modern AI-native tool in this evaluation.
Will not generate an answer when knowledge coverage is incomplete - returning "not enough info" rather than an ungrounded response, protecting against indefensible DDQ answers.
Where HeyIris Falls Short?
Knowledge base gaps surface as "not enough info" friction - Teams with incomplete knowledge bases see more manual work on lower-coverage questions.
Not built for full RFP or narrative proposal management beyond the answer-generation step.
What Real Users Say About HeyIris on G2?
"I use Iris to automate RFP/RFI responses, saving time for my Solutions Engineers to focus on strategy. It also helps spot inconsistent and outdated data." — Verified G2 reviewer (View on G2 ↗)
Who Should Choose HeyIris?
B2B SaaS presales and sales engineering teams whose primary format is vendor security and operational DDQs, who need sourced, confidence-scored answers and strong portal support, and whose workload does not yet include formal RFP responses or narrative proposals.
3. Arphie - Best DDQ Automation Software for Zero Library Maintenance
Best for: Sales engineering and presales teams whose security and operational knowledge already lives across SharePoint, Confluence, Notion, and Google Drive, and who want AI-generated DDQ answers from live source documents without building a separate knowledge database.
G2 rating: 5 / 5 ↗ G2
Pricing: Custom enterprise; zero data retention policy.
AI approach: AI agents with live integrations to Google Drive, SharePoint, Confluence, Notion, Seismic, Highspot, and web URLs.
What Arphie Does Well?
No Q&A library required - AI agents connect directly to live source systems and retrieve current answers at query time. DDQ answers are only as stale as the source documents.
Proactive flagging when source documents change - When a connected policy or certification is updated, Arphie flags which DDQ answers may be affected.
Confidence scores and source citations on every answer - Full provenance on every generated DDQ response.
Zero data retention policy and SOC 2 Type 2 certification.
Where Arphie Falls Short?
Answer quality depends entirely on source document organization - Disorganized SharePoint or outdated Confluence produces disorganized DDQ answers; the maintenance burden shifts rather than disappears.
Custom enterprise pricing with no self-serve evaluation path.
Not built for formal RFP or narrative proposal management beyond the answer-generation step.
What Real Users Say About Arphie on G2?
Who Should Choose Arphie?
Vendor teams whose compliance and security documentation already lives in well-organized live source systems, and who want DDQ answers grounded in current documents without the overhead of building or migrating a parallel knowledge database.
4. Loopio - Best DDQ Software for Enterprise Teams with a Governed Content Library
Best for: Mid-to-enterprise proposal teams that already use Loopio for RFP and questionnaire management and want to extend that same governed content library to cover inbound DDQs.
G2 rating: 4.7 / 5 ↗ G2
Pricing: Enterprise; contact for quote.
What Loopio Does Well?
Mature governed content library with role-based permissions, version history, and automated stale content alerts.
Outstanding customer support - the highest-rated in the RFP Software category on G2; critical when DDQ deadlines create urgent support needs.
Handles Excel, Word, and online form DDQ formats.
Where Loopio Falls Short?
Library maintenance burden - DDQ answers need regular review and updating as security posture, certifications, and policies change.
Limited portal DDQ support. Whistic and BitSight portal auto-complete is not Loopio's primary strength.
AI output quality is bounded by library currency. Stale library = stale AI suggestions.
For a full comparison, see our 10 Best Loopio Alternatives in 2026.
What Real Users Say About Loopio on G2?
Who Should Choose Loopio?
Teams that already use Loopio for RFP management and want to extend that workflow to DDQs, and who have a dedicated content owner who can keep the DDQ answer library current.
5. Responsive (RFPIO)- Best DDQ Software for Enterprise Scale and CRM Integration
Best for: Large enterprise teams managing DDQs alongside a high volume of structured RFPs and vendor assessments, with deep Salesforce or HubSpot integration required.
G2 rating: 4.5 / 5 ↗ G2
Pricing: Foundations plan approximately $20,000+/year; seat-based.
What Responsive Does Well?
Deepest integration ecosystem - Salesforce, HubSpot, SharePoint, Slack, and Teams natively connected so DDQ completion status tracks directly within the deal record.
Handles DDQs, security questionnaires, RFPs, and RFIs with the broad format coverage of any library-based legacy platform in this evaluation.
Where Responsive Falls Short?
Library-first AI - output quality is bounded by manual content library currency.
Seat-based pricing creates contributor friction across security, legal, and compliance teams.
Portal DDQ support is limited compared to purpose-built tools.
For a full evaluation, see our 10 Best Responsive Alternatives in 2026.
What Real Users Say About Responsive on G2?
Who Should Choose Responsive?
Enterprise teams managing DDQs as one format among many, including RFPs and vendor assessments, where Salesforce or HubSpot integration is a core workflow requirement.
6. 1Up - Best Free DDQ Automation Software for Small Teams
Best for: Small-to-mid-market B2B sales and presales teams wanting instant DDQ answers via Slack or Teams, without any knowledge library to build or budget to justify.
G2 rating: 4.9 / 5 ↗ G2
Pricing: Free plan; Starter $300/mo; Plus $900/mo.
What 1Up Does Well?
Genuinely free for getting started. No credit card, no procurement process, no knowledge base setup.
Slack and Teams native. DDQ questions answered without context-switching.
Live connectors, no Q&A library required.
Where 1Up Falls Short?
Not designed for complex, multi-stakeholder DDQ workflows. No approval chains, audit trails, or portal support.
Scales poorly as DDQ complexity or stakeholder count grows.
Not suited for portal-based DDQ submissions.
What Real Users Say About 1Up on G2?
Who Should Choose 1Up?
Small B2B SaaS teams receiving their first wave of vendor DDQs who want to get started immediately at zero cost, and whose questionnaire complexity has not yet grown to require approval workflows or portal support.
If your team answers vendor DDQs alongside RFPs and proposals and wants one platform for all formats, let's talk through what the switch looks like. → Get a Personalized Recommendation
Asset Management DDQ Automation Software: Best Tools for Investment Managers
The investment management DDQ is a fundamentally different document from the vendor security DDQ. LP questionnaires cover fund strategy and philosophy, risk management framework, team and organizational structure, compliance and regulatory status, operational infrastructure, ESG considerations, and financial performance data.
They are completed by investor relations and compliance teams at private equity, hedge fund, and asset management firms, not by sales or security teams.
General RFP and vendor DDQ automation tools are not designed for this workflow. The right tools for this segment are purpose-built for the LP/GP questionnaire process.
Best DDQ Automation Software for Investor Relations Teams
DiligenceVault is the purpose-built specialist for investment management due diligence. It manages the complete LP DDQ lifecycle, routing questionnaire sections to the appropriate team members, tracking completion, maintaining a consistent response library that reflects the fund's current strategy and performance, and submitting completed responses across ILPA, AIMA, and custom LP formats.
For investment managers receiving DDQs from institutional LPs, DiligenceVault is the right evaluation to prioritize.
Canoe Intelligence automates data extraction and document processing for alternative investments, including DDQ data capture and normalisation, primarily serving fund administrators and institutional investors on the data management side rather than the response generation side.
Chronograph provides portfolio monitoring and LP reporting tools for private equity firms, with DDQ data management as part of its broader fund operations platform.
How to Choose the Right DDQ Automation Software?
Before evaluating any platform, answer the question that most buyers skip: which side of the DDQ are you on, and what type of DDQ is it?
If you are a B2B vendor or SaaS company receiving enterprise buyer due diligence as part of your sales cycle, the tool cards above are your evaluation set. Thalamus AI for mixed workloads. HeyIris and Arphie for DDQ-only workloads. Loopio and Responsive for library-governed enterprise operations.
If you are an investment manager receiving ILPA or AIMA questionnaires from institutional LPs, DiligenceVault is purpose-built for your workflow. RFP and vendor DDQ tools are not.
If you are a procurement team building a vendor risk program and sending DDQs to your vendor base, you need a TPRM platform (VISO TRUST, Prevalent, LogicGate) rather than a response automation tool.
For a full breakdown of how these platforms compare on security questionnaire formats specifically, see our Best Security Questionnaire Automation Software in 2026. For a full evaluation across the broader RFP software category, see our 12 Best AI RFP Software Tools in 2026. For pricing model breakdowns across the category, see our RFP Software Pricing Guide for 2026.
DDQ Automation Software FAQ
What is DDQ automation software?
DDQ automation software uses AI to generate first-draft responses to due diligence questionnaires, drawing from a connected knowledge source, whether a Q&A library, live source documents, or compliance evidence. It replaces the manual process of searching past responses, querying subject matter experts, and assembling answers from multiple sources.
Depending on the platform, it also handles routing questions to appropriate reviewers, tracking completion status, and submitting completed responses through portal platforms or document formats.
What is a DDQ in due diligence?
A DDQ (Due Diligence Questionnaire) is a structured document used to assess an organization before entering a significant business relationship. In investment management, LPs send DDQs to GPs to evaluate whether to commit capital to a fund, covering strategy, risk management, team, operations, and compliance.
In B2B procurement, enterprise buyers send DDQs to vendors before signing a contract, assessing security posture, data handling, compliance certifications, and business continuity. Both are called DDQs but serve different industries, ask different questions, and require different tools to complete efficiently.
What is the difference between a DDQ and a security questionnaire?
A security questionnaire focuses specifically on information security: data encryption, access controls, vulnerability management, incident response, and security certifications. A DDQ is broader: it may cover security, but also financial stability, legal and regulatory compliance, operational processes, team structure, and business continuity. Many enterprise procurement DDQs include a security section, which is why the terms are often used interchangeably. For a detailed comparison of tools focused specifically on security questionnaire automation, see our Best Security Questionnaire Automation Software in 2026.
What is the ILPA DDQ and who needs to complete it?
The ILPA DDQ is the Institutional Limited Partners Association's standardized due diligence questionnaire, used by institutional investors, pension funds, endowments, foundations, and sovereign wealth funds, to evaluate fund managers before committing capital. General partners (GPs) at private equity, venture capital, and hedge fund firms complete ILPA DDQs as part of the fundraising and investor relations process.
The ILPA DDQ covers fund strategy, risk management, team and governance, ESG practices, operational infrastructure, and compliance. General-purpose RFP and vendor DDQ tools are not designed for this document; DiligenceVault is the purpose-built evaluation for this use case.
What is the best DDQ automation software for asset managers in 2026?
DiligenceVault is the purpose-built specialist for investment management DDQ workflows, designed specifically for the LP/GP questionnaire process used in private equity, hedge funds, and alternative asset management. It handles ILPA and AIMA standard DDQ formats and manages the complete investor relations DDQ lifecycle from routing to submission. General RFP and vendor DDQ platforms (Thalamus AI, Loopio, Responsive, HeyIris) are not designed for the investment management context.
How long does it take to complete a DDQ manually?
Manual DDQ completion time varies by questionnaire length and organization. Investment managers spend 40+ hours per month on ILPA questionnaires.
B2B SaaS vendors report that a 200-question security DDQ takes three to five business days to complete manually.
Enterprise procurement teams receiving comprehensive vendor DDQs report response timelines of two to four weeks.
With purpose-built automation, these timelines typically compress by 60 to 80 percent, though actual compression depends on the quality of the underlying knowledge source the AI draws from.
What is the difference between a DDQ and an RFP?
An RFP (Request for Proposal) invites vendors to propose how they would solve a problem, covering approach, methodology, team, and pricing, evaluated competitively against other proposals.
A DDQ assesses a specific vendor on risk, compliance, security, and operational criteria, a qualification or validation document, not a competitive selection document.
RFPs produce a comparative evaluation; DDQs produce a pass/fail or risk-level assessment. Many platforms cover both in the same product because both are received by vendor teams and require structured responses.
For a full evaluation of RFP automation tools alongside DDQ support, see our 13 Best AI RFP Software Tools in 2026.
Can AI fully automate DDQ responses?
AI can automate the first-draft generation step, which is where most time is currently spent. It cannot replace the human review step that verifies whether the generated answer is accurate, current, and legally defensible for the specific buyer relationship.
The practical model in 2026 is AI-assisted automation: the AI generates a complete first draft, routes low-confidence answers to the relevant SME, and produces a near-submission-ready document that a human reviews and approves.
Vendors advertising "fully automated" DDQ responses without human review describe a model that most enterprise legal and compliance teams would not accept for a document carrying contractual weight.
How much does DDQ automation software cost?
Pricing varies widely. Purpose-built vendor DDQ tools like HeyIris and Arphie are custom-priced for enterprise teams.
Platforms covering DDQs as part of a broader RFP and questionnaire workflow - Thalamus AI, Loopio, and Responsive are also custom-priced at the enterprise tier. The most accessible entry points are 1Up's free plan and tools with published mid-market pricing.
For a full pricing model breakdown across the questionnaire management category, see our RFP Software Pricing Guide for 2026.
What is the best DDQ software for investor relations?
For investor relations teams at asset managers responding to LP questionnaires: DiligenceVault is the primary specialist. Canoe Intelligence covers DDQ data extraction and normalization for fund administrators and institutional investors.
General-purpose RFP and questionnaire automation tools are built for the vendor due diligence context, not the LP/GP institutional investor context, and the two should not be evaluated from the same list.
Prepare Your Next DDQ with Thalamus AI - The Best DDQ Automation Software in 2026
If your workload is vendor DDQs as part of a broader mix of RFPs and proposals, and you want one platform handling all of them without a Q&A library to maintain, the next step is a walkthrough of your actual content.
Your next DDQ does not have to take a week. → Book Your Demo
Related reading: Best Security Questionnaire Automation Software in 2026 | 13 Best AI RFP Software Tools in 2026 | Thalamus AI vs General LLMs | RFP Software Pricing in 2026