BlitzAPI vs Pure Tax Investigations
Side-by-side comparison to help you choose the right product.
BlitzAPI
BlitzAPI empowers your GTM team with clean B2B data through scalable APIs for smarter outreach and growth.
Last updated: February 28, 2026

Pure Tax Investigations
We partner with you to expertly resolve complex HMRC investigations and protect your interests.
Last updated: March 1, 2026
Visual Comparison
BlitzAPI

Pure Tax Investigations

Feature Comparison
BlitzAPI
Smart ICP Targeting
BlitzAPI's Smart ICP Targeting feature allows users to identify and connect with their ideal decision-makers instantly. By leveraging advanced algorithms, it prioritizes and ranks prospects based on the ideal customer profile (ICP), ensuring that teams focus their efforts on the most relevant leads.
Verified Email & Phone Enrichment
This feature provides teams with access to verified, accurate emails and direct phone numbers. By enriching contact data, BlitzAPI helps organizations enhance their outreach efforts, allowing for more effective communication and engagement with potential clients.
Catch-All Email Validation
BlitzAPI includes a robust Catch-All Email Validation feature, which ensures that catch-all emails are validated with over 98% accuracy in real-time. This capability eliminates guesswork and significantly reduces bounce rates, improving overall email deliverability.
Unlimited Data Enrichment
With the Unlimited Data Enrichment feature, users can seamlessly enrich emails, phone numbers, LinkedIn profiles, and company data at scale through simple API calls. This flexibility allows teams to adapt their workflows and access the necessary data without constraints.
Pure Tax Investigations
Bespoke, Client-Centric Strategy
We believe every situation is unique. Our process begins with listening, ensuring we fully grasp your specific circumstances and concerns. Our team then collaborates to evaluate the details and formulate a tailored, pragmatic strategy designed to achieve the best possible commercial outcome for you.
Insider HMRC Knowledge and Experience
Our collaborative team is led by former HMRC senior inspectors, providing an unparalleled understanding of HMRC's internal processes, operational approaches, and mindset. This insider perspective is leveraged synergistically to navigate disputes efficiently and effectively, anticipating HMRC's actions.
Full-Spectrum Investigation & Disclosure Support
Our team offers comprehensive guidance across the entire spectrum of HMRC engagements. We work together to handle everything from routine compliance checks and complex COP9 fraud investigations to specialist disclosures for offshore assets, crypto gains, and property income, ensuring no aspect is overlooked.
A Dedicated Buffer and Robust Defence
We position ourselves as your independent, specialist intermediary with HMRC. Our team fights collaboratively on your behalf, managing all communications and negotiations to shield you from stress. We provide a robust defence, challenging HMRC where necessary to protect your wealth and aspirations.
Use Cases
BlitzAPI
Lead Generation
Sales and marketing teams can leverage BlitzAPI to generate high-quality leads by enriching their prospect lists with verified contact information and company profiles. This targeted approach enhances the effectiveness of outreach campaigns.
Market Research
Organizations can use BlitzAPI to conduct comprehensive market research by accessing a vast database of enriched company profiles. This information allows teams to identify trends, competitive landscapes, and potential growth opportunities.
Customer Relationship Management
BlitzAPI can be integrated into existing customer relationship management (CRM) systems to enrich customer profiles continuously. This ensures that teams have access to the most up-to-date and accurate information, facilitating better customer interactions.
Performance Monitoring
GTM teams can utilize BlitzAPI to monitor the performance of their outreach efforts effectively. By analyzing data from enriched contacts and responses, teams can refine their strategies and improve overall sales performance.
Pure Tax Investigations
Facing a Code of Practice 9 (COP9) Investigation
When HMRC suspects serious tax fraud and opens a COP9 investigation, the stakes are immense. Our team works with you to navigate this civil fraud procedure, guiding you through the disclosure process to regularise your affairs and seek the best possible settlement, avoiding criminal prosecution.
Managing a Worldwide Disclosure Facility (WDF) Submission
For clients with undeclared offshore income or gains, our specialists collaborate to prepare and submit a disclosure under HMRC's Worldwide Disclosure Facility. We ensure it is accurate, complete, and presented strategically to minimise penalties and bring your tax affairs into compliance.
Defending Against an HMRC Compliance Check or Enquiry
Even a routine HMRC enquiry can be stressful and time-consuming for business owners. Our team steps in as your representative, handling all queries, providing requested information, and working synergistically to resolve the check efficiently, limiting disruption to your business.
Resolving Complex Inheritance Tax or Trust Disputes
For private clients facing enquiries into residence, domicile, trusts, or inheritance tax planning, our experts provide clear, pragmatic advice. We work together to analyse complex structures and present robust arguments to HMRC, safeguarding family wealth and succession plans.
Overview
About BlitzAPI
BlitzAPI is a comprehensive API toolbox tailored to meet the needs of go-to-market (GTM) teams seeking high-quality B2B data for enhanced prospecting. This powerful platform enables teams to efficiently search for and enrich contacts and companies, validate work emails, and retrieve verified phone numbers, all crucial for optimizing their outbound and revenue operations workflows. BlitzAPI is built on two fundamental principles: prioritizing data quality over noise and ensuring deliverability-first practices for email communications. This makes BlitzAPI an indispensable resource for GTM agencies, outbound sales teams, and organizations striving to implement repeatable playbooks while preserving data integrity and scalability. With seamless integration into existing workflows and a commitment to providing verified, accurate data, BlitzAPI empowers teams to improve their operations and achieve superior results with less effort.
About Pure Tax Investigations
Pure Tax Investigations is a specialist advisory firm that acts as a dedicated, independent buffer between clients and HM Revenue & Customs (HMRC). We are a collaborative team of experts, led by former HMRC senior Tax Inspector Amit Puri, who bring over 20 years of high-quality, insider experience to every case. Our mission is to provide robust defence and clear, pragmatic guidance for business owners, entrepreneurs, and private clients facing the immense pressure of HMRC scrutiny. We understand that tax investigations and disclosures are inherently complex and deeply intrusive. Therefore, we work synergistically with our clients, listening first to fully understand their unique situation before evaluating and formulating a bespoke strategy. Our core value proposition is delivering certainty, peace of mind, and commercial results by leveraging our deep knowledge of HMRC's latest operational approaches to resolve disputes efficiently and protect our clients' wealth and aspirations.
Frequently Asked Questions
BlitzAPI FAQ
What types of data does BlitzAPI provide?
BlitzAPI offers a wide range of B2B data, including verified emails, phone numbers, company profiles, and enriched LinkedIn data, all designed to streamline prospecting efforts.
How does BlitzAPI ensure data accuracy?
BlitzAPI prioritizes data quality by implementing deliverability-first practices and real-time validation processes, ensuring that users receive accurate and reliable information.
Can BlitzAPI integrate with existing workflows?
Yes, BlitzAPI is designed for seamless integration into existing workflows, allowing teams to enhance their operations without needing to adapt to a new system.
Is there a free trial available for BlitzAPI?
Yes, BlitzAPI offers 1,000 credits free for users to explore the platform and experience its capabilities without the need for a credit card.
Pure Tax Investigations FAQ
What makes Pure Tax Investigations different from my accountant?
While your accountant handles routine compliance, we are specialist tax investigation and dispute resolution experts. Our collaborative team, led by ex-HMRC inspectors, provides deep, insider knowledge of HMRC's investigation tactics. We act as a dedicated buffer and strategic defender during high-stakes conflicts, a specialised service beyond standard accounting.
What should I do if I receive a letter from HMRC opening an enquiry?
Do not ignore it or respond immediately without specialist advice. Contact our team promptly. We will work with you to understand the letter's scope and implications. We then collaborate to formulate a response strategy, often taking over all communication with HMRC to protect your position and ensure a measured, professional approach.
Can you help if I have undisclosed income from years ago?
Yes, absolutely. Our team specialises in voluntary disclosures and negotiating with HMRC to regularise historical tax affairs. We will work synergistically with you to assess the situation, determine the best disclosure route (such as the WDF or Let Property Campaign), and prepare a full disclosure to minimise penalties and interest.
What is your approach to working with clients and their other advisers?
Collaboration is at our core. We see ourselves as part of your advisory team, working synergistically with you and your existing accountants or lawyers. We ensure clear, coordinated communication and strategy, leveraging our specialist investigation expertise while they maintain their ongoing advisory role, providing a unified front.
Alternatives
BlitzAPI Alternatives
BlitzAPI is a robust API toolbox designed specifically for B2B data management, making it an essential resource for go-to-market teams. It allows users to efficiently search for and enrich business contacts and company information, enhancing their prospecting efforts. As teams strive for seamless integration and higher quality data, they often seek alternatives to find solutions that better fit their specific needs, whether related to pricing, features, or platform compatibility. When considering alternatives, it's vital to focus on the core functionalities that align with your team's goals. Look for options that prioritize data accuracy, integration capabilities, and user experience, ensuring they can effectively support your outbound and revenue operations workflows while maintaining scalability.
Pure Tax Investigations Alternatives
Pure Tax Investigations is a specialist advisory firm in the business and finance category, dedicated to resolving complex HMRC enquiries. Clients may explore alternatives for various reasons, such as seeking different pricing structures, requiring a specific geographic presence, or desiring a different service model that aligns with their unique circumstances. When evaluating other options, it’s crucial to consider the depth of the team's direct HMRC experience and their collaborative approach. Look for a partner that offers clear, pragmatic guidance and a proven strategy for managing the full scope of an investigation, from initial enquiry to final resolution, ensuring your interests are robustly defended.