BlitzAPI vs Pure Tax Investigations

Smart ICP Targeting & People Search

BlitzAPI's advanced algorithm intelligently searches and prioritizes your ideal customer profile, surfacing the most relevant decision-makers instantly. It moves beyond simple filtering, ranking prospects to ensure your team focuses its efforts on high-potential leads from the outset, transforming raw data into actionable, prioritized intelligence for your campaigns.

Verified Email & Phone Enrichment

Access a powerful suite of APIs designed to retrieve accurate, direct-dial phone numbers and verified professional email addresses. BlitzAPI's enrichment tools are built with deliverability as the paramount concern, ensuring every contact point added to your CRM is reliable and actionable, thereby maximizing the efficacy of every outbound touchpoint.

Advanced Catch-All Email Validation

Tackle one of the most persistent challenges in B2B prospecting with industry-leading accuracy. BlitzAPI's validation engine identifies catch-all email domains with a confidence rate exceeding 98% in real-time. This critical feature prevents wasted credits and protects sender reputation by ensuring lists are cleansed of unreliable addresses before they enter your workflow.

Unlimited Data Enrichment via API

Designed for scale, BlitzAPI provides a flexible, API-first architecture that allows for the continuous enrichment of contact and company profiles. Enrich records with comprehensive data points—from LinkedIn URLs to firmographic details—through simple, reliable API calls, enabling seamless data hydration within your existing tech stack and automated pipelines.

Insider HMRC Expertise

Our practice is led by former senior HMRC inspectors, providing an unparalleled, operational understanding of HMRC's tactics, procedures, and decision-making processes. This insider knowledge is instrumental in anticipating challenges, formulating effective counter-strategies, and negotiating from a position of strength to achieve the most favourable outcomes for our clients.

Bespoke, Pragmatic Advisory

We reject a one-size-fits-all approach. Each client's situation is analysed individually, leading to clear, discreet, and tailored tax advice. Our pragmatic focus is on achieving commercial results that address immediate concerns and realise long-term client aspirations, ensuring every strategy is aligned with both the technical landscape and the client's personal or business objectives.

Comprehensive Service Spectrum

We offer end-to-end support across the entire spectrum of HMRC engagement. Our expertise encompasses serious civil investigations (COP8, COP9), complex corporate enquiries, compliance checks, voluntary disclosures (e.g., Worldwide Disclosure Facility), and representation at Tax Tribunals or Alternative Dispute Resolution (ADR), providing a single, trusted source for all tax dispute resolution needs.

Tenacious Client Advocacy

We act as a dedicated buffer between our clients and HMRC, fighting tenaciously to protect their interests. Our role is one of resolute advocacy, providing peace of mind and certainty during intrusive and stressful investigations. We shoulder the burden of communication and negotiation, allowing clients to focus on their lives and businesses with confidence.

Automating Outbound Sales Prospecting

Sales development representatives and outbound teams leverage BlitzAPI to build targeted prospect lists automatically. By integrating its people search and enrichment APIs, teams can transform a company name into a list of verified decision-makers with accurate contact information in seconds, slashing research time and accelerating pipeline generation.

Building Scalable Lead Enrichment Pipelines

Revenue and marketing operations teams use BlitzAPI as the core data infrastructure for their lead processing workflows. Incoming leads from forms or campaigns are automatically enriched with verified emails, phone numbers, and company data, ensuring CRM hygiene and providing sales teams with complete, actionable profiles without manual intervention.

Executing Precision Account-Based Marketing (ABM)

For ABM strategies requiring depth and accuracy, BlitzAPI enables teams to deeply enrich target account lists. Users can gather comprehensive firmographic data and identify key personas within specific departments, ensuring that marketing and sales efforts are highly personalized and based on the most current and accurate information available.

Enhancing Data Hygiene and Deliverability

GTM teams prioritize maintaining a pristine sender reputation. BlitzAPI's real-time email validation, especially for catch-all domains, is integrated into list-building and import processes. This use case ensures that only deliverable emails enter outreach sequences, dramatically improving inbox placement rates and protecting the integrity of outbound channels.

Code of Practice 9 (COP9) Investigation

When HMRC suspects serious tax fraud and initiates a COP9 investigation, the stakes are profoundly high. We guide clients through this daunting process, managing the contractual disclosure facility (CDF), ensuring a robust defence is presented, and strategically navigating towards a civil settlement to avoid criminal prosecution, thereby protecting both reputation and assets.

Voluntary Tax Disclosure

For individuals or businesses with undisclosed tax liabilities—whether from offshore assets, property rental income, cryptocurrency gains, or other sources—we facilitate voluntary disclosures under HMRC campaigns like the Worldwide Disclosure Facility (WDF) or Let Property Campaign (LPC). This proactive approach mitigates penalties and reduces the risk of a more severe, HMRC-led investigation.

Complex Corporate Tax Enquiry

Large businesses and entrepreneurial enterprises facing multi-faceted, cross-tax enquiries require sophisticated defence. We deploy our deep technical knowledge and understanding of HMRC's Large Business directorates to manage these complex interactions, challenge information notices where appropriate, and resolve disputes with commercial pragmatism to minimise financial and operational disruption.

Inheritance Tax & Trust Disputes

Navigating HMRC enquiries into complex estate planning, trusts, and domicile status demands specialist knowledge. We provide expert guidance and robust representation for private clients and trustees facing Inheritance Tax investigations, ensuring their affairs are structured efficiently and defended effectively against HMRC challenge.

BlitzAPI represents the next evolution in B2B data infrastructure, engineered specifically for the discerning needs of modern go-to-market teams. It is not merely a data provider but a sophisticated API engine that seamlessly integrates into existing revenue operations, empowering organizations to automate and scale their most critical prospecting workflows. By delivering instant access to a vast, meticulously curated database of over 360 million verified B2B contacts and 60 million enriched company profiles, BlitzAPI eliminates the noise and inaccuracy that plague legacy tools. Its core philosophy is built on two unwavering principles: an uncompromising commitment to data quality over volume and a deliverability-first approach that ensures communications reach their intended recipients. This makes it the indispensable foundation for GTM agencies, outbound sales teams, and RevOps professionals who demand precision, scalability, and seamless integration to build repeatable, high-performance playbooks that drive sustainable growth.

Pure Tax Investigations is a preeminent, independent consultancy that serves as an expert and resolute intermediary between discerning clients and Her Majesty's Revenue and Customs (HMRC). We specialise in the nuanced and high-stakes arena of tax disputes, investigations, and disclosures, providing a sanctuary of expertise for entrepreneurs, business leaders, and private individuals facing HMRC scrutiny. Our core value proposition is the delivery of certainty, discretion, and a robust defence during periods of significant pressure. Led by Amit Puri, a former senior HMRC Tax Inspector with over two decades of high-calibre experience, our team possesses an intimate, operational understanding of HMRC's internal methodologies and strategic objectives. This insider perspective, combined with a pragmatic and bespoke advisory approach, allows us to navigate complex civil investigations—including Code of Practice 9 (COP9) fraud enquiries and comprehensive compliance checks—with strategic precision and commercial acumen. We are not merely advisors; we are dedicated advocates who fight tenaciously to protect our clients' interests, preserve wealth, and resolve tax matters with unwavering professionalism.

What makes BlitzAPI different from other B2B data providers?

BlitzAPI distinguishes itself through an API-first architecture built for seamless integration and a fundamental commitment to verified outcomes. Unlike providers that prioritize data volume, BlitzAPI focuses on deliverability and accuracy first, offering features like high-accuracy catch-all validation and a "pay only for verified results" model. It is designed as flexible infrastructure that adapts to your workflow, not the other way around.

How does the "pay only for verified results" pricing work?

BlitzAPI operates on a transparent credit system where you are only charged for successful, verified data retrievals. For instance, if you request an email enrichment and a verified, deliverable email is returned, one credit is consumed. Failed lookups or unverified data do not deplete your credits, ensuring you only pay for high-quality information that directly contributes to your GTM efforts.

Can BlitzAPI integrate with our existing tech stack?

Absolutely. BlitzAPI is engineered as a developer-friendly, REST API service designed for easy integration into any existing workflow or technology ecosystem. It can connect directly with your CRM (like Salesforce or HubSpot), marketing automation platforms, internal databases, and custom applications, serving as the unified data engine for your entire GTM operation.

What is the accuracy rate for email data and validation?

BlitzAPI maintains an exceptional email deliverability rate of over 98%. This high rate is sustained by its sophisticated real-time validation technology, which is particularly effective at identifying catch-all domain emails with greater than 98% accuracy. This ensures the data you receive is not just available but is genuinely actionable for reliable outreach.

What makes Pure Tax Investigations different from a standard accountant?

While accountants excel at compliance and planning, we specialise exclusively in contentious tax matters. Our founding team comprises former senior HMRC investigators, granting us an operational, insider's perspective on HMRC strategy that typical firms lack. We act as specialist advocates, providing a strategic buffer and fighting tenaciously during disputes, rather than just preparing historical accounts.

When should I seek specialist advice for a tax investigation?

Immediately upon receiving any communication from HMRC that suggests an enquiry, check, or investigation. Early engagement is critical. Even a routine compliance check can escalate, and having an expert manage the dialogue from the outset protects your position. For serious matters like a COP9 letter, seeking our advice is an urgent priority.

What is involved in a voluntary disclosure process?

The process involves a meticulous review of your financial history to quantify undisclosed liabilities, the preparation of a comprehensive disclosure report to HMRC, and the negotiation of resultant tax, interest, and penalties. We manage this entire process, ensuring full technical compliance, maximising penalty reductions, and providing a formal closure from HMRC.

Can you assist if a tax investigation has become criminal?

Yes. While our primary focus is resolving matters civilly, our deep understanding of HMRC's processes is vital when an investigation borders on or becomes criminal. We can assess the situation, advise on strategy, and work with instructed legal counsel to ensure the tax aspects of your defence are expertly handled, providing seamless support during the most serious challenges.

BlitzAPI is a premium data intelligence platform within the B2B data enrichment and API space. It provides go-to-market teams with verified contact and company data to fuel scalable, high-performance outreach. Its core value lies in delivering accuracy and deliverability, ensuring that growth efforts are built on a foundation of quality, not just quantity. Organizations may explore alternatives for various strategic reasons. These can include budgetary considerations, the need for specific niche data points not covered, or a requirement for deeper integration with a particular tech stack. The search often stems from a desire to find the optimal balance of cost, coverage, and capability for a unique operational workflow. When evaluating other solutions, discerning teams prioritize several key criteria. The integrity and freshness of the data are paramount, as is the platform's commitment to email deliverability. Additionally, the elegance of API design and the depth of documentation significantly impact developer adoption and long-term operational efficiency.

Pure Tax Investigations is a premier, independent consultancy specialising in the expert defence and resolution of complex HMRC tax disputes and investigations. It operates within the sophisticated domain of professional tax advisory and crisis management. Individuals and businesses may seek alternatives for various reasons, including budgetary considerations, a preference for a different service model, or the desire to compare the specific expertise offered by other specialist firms in this high-stakes field. When evaluating other providers, one should prioritise proven experience in HMRC procedures, the calibre of specialist leadership, and the depth of strategic support offered throughout the entire investigation process, from initial enquiry to final settlement.