About Us
Our Story
Certainti was born from more than two decades of hands-on R&D tax experience through ResDev Tax Consultants. Thousands of claims showed us where the traditional process works — and where it doesn't.


We saw qualifying innovation being missed, technical teams struggling to reconstruct work months after it happened, evidence scattered across systems, and businesses carrying unnecessary cost and risk.


So we built a better way: a global platform that combines specialist R&D tax expertise with purpose-built AI to identify, quantify, document and support R&D tax incentives at scale.
Built on experience. Proven in practice.
Our Journey
Our Vision
To become the global infrastructure for innovation incentives.
One intelligent platform through which innovative companies can identify, manage and access the government incentives available to them — across jurisdictions, programs and borders.
Our Mission
Make innovation incentives easier to find, capture and defend.
We combine specialist tax expertise, technical knowledge and AI to help companies identify qualifying activity, maximize legitimate claims and build the evidence behind them — with less disruption to the teams doing the innovation.
Meet the Team
Leadership
Dhiraj Girdhar
Founder & Chief Executive Officer
Show more
Dhiraj is a serial entrepreneur, technology executive and investor with 30+ years of global experience building, scaling and leading enterprise technology and consulting businesses — the last 15 at C-suite level. He founded ResDev Tax Consultants in 2004, growing it into a trusted R&D incentives partner to major global enterprises, and has led its evolution into Certainti.ai: an AI-powered platform operating across seven jurisdictions. Earlier in his career he held senior roles in telecom, banking and enterprise IT, running programs of $50M+. Beyond Certainti.ai, he invests in and sits on the boards of high-growth technology ventures including AllianceIT, Nuron.ai and Curasion, and mentors emerging tech founders.
Prabhu Balakrishnan
Chief Technology Officer
Show more
Prabhu leads product, engineering and the AI capability at the core of the Certainti.ai platform. He brings nearly 20 years in software engineering, enterprise architecture and digital transformation, including Divisional Vice President of Digital Engineering at Hudson’s Bay, where he built the team that modernised the retailer’s technology platform, and senior engineering and architecture roles at IG Wealth Management, Manulife and Syntel. His work has consistently sat at the intersection of regulated industries and scalable software — insurance, wealth management, retail and accounting — which is exactly the problem Certainti.ai solves: turning a complex, judgement-heavy process into defensible, repeatable technology.
Lee Birch
Chief Commercial Officer
Show more
Lee leads Certainti.ai’s commercial strategy, go-to-market and enterprise partnerships across North America, the UK and Europe. Over 18 years he has built and scaled businesses on both sides of the Atlantic: starting at SThree, where he was part of the Global Team of the Year; founding and running Thor Companies for twelve years, an international consulting and talent firm across life sciences, technology, energy and engineering; and most recently leading Michael Page’s West Coast operations as Senior Executive Director and member of the North American leadership board. He joined Certainti.ai in 2026 and is based in Los Angeles.
Rimi Mohindra
Chief Human Resources Officer
Show more
Rimi has 20+ years as a delivery executive designing, managing and rescuing complex enterprise programs on SAP, PeopleSoft and SaaS platforms such as SuccessFactors. Her client experience spans banking and finance, healthcare, pharmaceuticals, manufacturing, mining, transportation, telecommunications and Canadian and US government. She is known for people-centred change management and training, and for the remediation of troubled projects through collaboration and clear communication. At Certainti.ai she leads talent, culture and operational delivery as the team scales across five countries.
Kumar Velusamy
Director of Professional Services
Show more
Kumar leads R&D tax credit delivery across the US, Canada, the UK, Ireland and Australia. His 14+ years span supply chain and ERP-led finance operations, including accounts receivable, accounts payable, reconciliation, record-to-report and ERP migrations. That grounding shows where a claim’s costs originate and which questions to ask when systems change. Software delivery and quality assurance added command of the full development lifecycle, and his Mechanical Engineering degree lets him read technical work across domains, from CAD/CAM to metallurgy, and identify genuine technological advance. Experience in international and domestic customer support shapes how his team engages clients. His team reviews every project in a portfolio rather than sampling, and he sets the delivery process internally and the documentation standard for every Certainti claim.
Senior Advisors
Vishwanath Kini
Senior Strategic Advisor
Show more
Vish is a corporate tax leader with 30+ years across direct tax, international tax, transfer pricing and indirect tax, with deep experience in tax planning, entity rationalisation and M&A. He served as Vice President and Global Head of Tax at Tech Mahindra for nearly two decades and continues to advise the group on global tax strategy and ETR optimisation, alongside advisory work with Thomson Reuters on tax automation. He has been recognised with multiple industry tax awards and is a regular speaker at major firms and events. At Certainti.ai he brings the enterprise tax-function perspective: how a CFO’s team actually evaluates, approves and defends an R&D claim.
Natan Aronshtam
Senior Strategic Advisor
Show more
Natan spent 25 years as a Partner at Deloitte, where he served as Global Leader of Investment & Innovation Incentives — the practice helping companies in more than 50 countries secure R&D credits, investment incentives and workforce funding. He has advised national governments on the design of incentive policy to attract innovation, led engagements for some of Deloitte’s largest global clients, and is a frequent speaker and media commentator on R&D incentives. He sits on the boards of Questbank, EigenQ and EXACT Technology, began his career leading product development at Alcatel, and holds a BMath in Computer Science from the University of Waterloo.
Two decades of expertise. One new way of working.
ResDev began with a simple purpose: help innovative companies access the R&D incentives they had earned.


Over the next two decades, our teams worked across industries, technologies and jurisdictions — assessing technical eligibility, quantifying expenditure, preparing submissions and supporting claims through review.


That experience revealed a recurring problem: the traditional R&D tax process wasn't designed for the scale, complexity or evidence requirements of modern innovation. Certainti is our answer.
We took the methodology, judgment and lessons developed through thousands of real claims and began engineering them into a technology platform — creating a more continuous, consistent and scalable way to manage R&D incentives globally.
Certainti isn't replacing our expertise. It's how we're scaling it.

Our Values
Trust Through Transparency
Every number in a Certainti claim traces back to a source record, and every AI determination is checked by a person who has defended claims in front of the authority. We’d rather show our working than ask you to take our word for it.
Innovation with Purpose
We built an AI because the old process was broken, not because AI was fashionable. Every feature exists to find more qualifying work, take less of your team’s time, or make a claim easier to defend. If it doesn’t do one of those, it doesn’t ship.
Customer Success
The outcome isn’t a filed claim; it’s a credit received and a process that’s easier next year. Our consultants stay with you through review, enquiry and the following filing, and we measure ourselves on what you recover.
The Team Behind Every Claim
Technology alone doesn't create a strong R&D tax claim. Neither does tax expertise in isolation.
Certainti brings together the disciplines required to take innovation from activity to defensible incentive.
R&D Tax Professionals
Interpret incentive rules, qualification requirements and filing strategy.
Technical Specialists
Scientists, engineers and domain experts assess the technological work behind the claim.
Financial Specialists
Connect qualifying activity to eligible expenditure, calculations and supporting financial records.
Software Engineers
Build the technology that brings the entire process together and makes it scalable.

You’ve met the team. Now put us to work.
Tell us about your R&D activity and we’ll see what tax credits we can find.