All Previous Investors Participated in Oversubscribed Round, New Investors Added, Vaudit Names Piotr Korzeniowski Chief Operating Officer

SAN FRANCISCO–(BUSINESS WIRE)–Vaudit, formerly BlokID, today announced the successful closing of a $7.3 million seed round of financing led by Mucker Capital, with participation from AVV, AppWorks, Plug and Play, and Kyber Knight. The list of investors notably includes Mucker Capital’s Omar Hamoui who founded AdMob, a mobile ad platform acquired by Google for $750 million, and AVV’s Binh Tran who co-founded Klout, a social media analytics company acquired by Lithium Technologies for $200 million. Following a pre-seed raise of $1.25 million, Vaudit has raised a total of $8.5 million.

Vaudit raises $7.3 million in seed funding led by adtech veterans, monitors ad campaigns to reduce ad wasteShare

Vaudit is a real-time AI audit engine that monitors advertising campaigns 24/7, detects billing anomalies, and generates legally defensible audit evidence to help businesses recover wasted ad spend. With advertisers increasingly under pressure to justify budgets and maximize efficiency, Vaudit delivers the tools to surface overcharges, flag waste, and push for platform refunds, with documentation that stands up to internal finance and legal review. VPN Ranks notes ad fraud losses totaled $28.6 billion in the U.S. alone last year.

The company supports 1,000+ customers worldwide and has audited more than 558 million advertising events. Since launching late last year, Vaudit is now auditing over $150 million in annualized ad spend, and in some cases recording up to 30% in monthly overcharges for customers when reconciling against the traffic they were actually billed for. Vaudit services channel partners who are looking to enhance their value proposition for clients regularly running ad campaigns, as well as leading consumer and enterprise brands such as Accenture, HP, Huawei, Husqvarna, Marmot, Panasonic, RE/MAX, SAP and Volkswagen.

“We’re excited to partner with adtech veterans like Omar and Binh to pioneer a new standard in digital advertising accountability,” said Michael Hahn, Founder and CEO of Vaudit. “The online advertising industry has normalized waste and fraud for far too long, with clicks that don’t track, campaigns that overspend, and billing that goes unverified.”

From Fraud Detection to Full Audit Intelligence

Originally launched as BlokID, the team quickly recognized businesses lacked visibility, control, and accountability over where and how their media dollars were being spent. The new name, short for “Virtual Audit,” represents the company’s ambition to bring institutional-grade auditing capabilities to every business, not just the enterprise elite.

“Vaudit is solving a huge problem that sits quietly in nearly every marketing budget,” said Omar Hamoui, Partner at Mucker Capital. “Digital advertising has become too complex and too opaque. Mike and the Vaudit team are building a category-defining tool that will bring much-needed clarity and financial discipline to a space long overdue for accountability.”

Vaudit acts as an embedded audit layer across a company’s digital media investments, reconciling reported ad spend with actual billing from ad vendors or platforms like Google and Meta. By continuously monitoring campaign activity and surfacing discrepancies in spend or delivery, Vaudit equips teams with structured reports they can use to flag irregularities, dispute charges, and recover wasted media dollars.

Vaudit Appoints New Chief Operating Officer

Vaudit has named Piotr Korzeniowski as its new Chief Operating Officer. His focus is on product development and scaling operations to support the company’s next phase of growth. He previously scaled an adtech software development firm, Clearcode, to a $10 million enterprise value prior to its exit and led a martech B2B SaaS company, Piwik PRO, to over $14 million in annual recurring revenue (ARR) with more than 50% compounded year-over-year growth, also culminating in a successful exit.

“While fraud prevention in adtech is an established category, no one has truly looked at the bill—scrutinizing whether platforms actually deliver on what they were set up to do,” said Korzeniowski. “Vaudit addresses that blind spot. I’m excited to help shape the product and scale the business on the solid foundation Mike and the team have built.”

Looking Ahead

With this seed round of financing, Vaudit is set to accelerate the development of its agentic workflows, which will automatically optimize ad spend by identifying and minimizing waste while blocking fraudulent traffic on behalf of customers. Additionally, the company will focus on refining its AI models to increase precision in detecting anomalies, improving fraud detection, and providing even more actionable insights for businesses.

“Anyone spending money on digital ads deserves full visibility into where their dollars go and the power to hold platforms accountable when they’re charged for AI traffic instead of real people,” said Binh Tran, General Partner at AVV. “Vaudit isn’t just innovating in adtech, it’s defining a new category: audit intelligence. By bringing financial accountability to media buying, Vaudit delivers the missing trust layer for today’s opaque digital ad ecosystem.”

While current traction has been primarily focused on auditing campaigns with major platforms like Google and Meta, Vaudit plans to expand its coverage to a broader range of digital advertising channels. This includes mobile in-app traffic, which commands a significant portion of global ad spend, and eventually emerging advertising platforms like TikTok, X (fka Twitter), and Amazon.

About Vaudit

Vaudit is a real-time AI audit engine that detects and documents digital media waste, empowering businesses to challenge billing discrepancies and take action on inaccurate spend. Founded by adtech veteran Michael Hahn, Vaudit enables brands and agencies to recover lost value, verify spend, and bring transparency to performance marketing.

Learn more at www.vaudit.com.

Contacts

Media Contact:
Tim Johnson
UPRAISE Marketing + PR for Vaudit
vaudit@upraisepr.com
415-385-9537

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