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H4. Documents,
just smarter.

H4 is a digital platform transforming the documentation that underpins global financial markets and legal contracts

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The Problem

Documentation today is a major source of inefficiency.

It is the bedrock of the global capital markets and legal contracts but has not been fundamentally improved for decades.

It is still far too difficult to create, read, navigate, search, analyze, compare, collaborate on, negotiate, distribute and store documentation.

Consider how many documents your own organization has executed and how much time, effort, knowledge and expense goes into creating, analyzing and monitoring them.

But little has been done for a long time to change the status quo.

The digitization of documentation has yet to really begin.

The solution

The Solution

H4 is vastly improving documentation, delivering:

  1. Practical solutions for the real problems with documentation today.
  2. Re-engineered documentation and associated workflows using the latest technology.
  3. Consistency with best work practices.

H4 is utilizing the extensive experience of its management team and its close partnerships with leading investment banking, financial investor and legal firms to deliver this.

The H4 platform is launching initially in the U.S. capital markets and will roll-out in other markets and industries thereafter.

Shearman & Sterling logo
Linklaters logo
Allen & Overy logo
Clifford Chance logo
Cravath, Swaine & Moore logo
Davis Polk and Wardwell logo
Freshfields logo
Slaughter and May logo


A Utility Platform

H4 is a utility for the marketplace to benefit investment banks, law firms, financial investors, issuers and other market participants.

H4 is working closely with many of these institutions and was the first company to join the J.P. Morgan In-Residence Program.

Within the legal profession, H4 is working closely with a number of the leading global law firms including Shearman & Sterling, Linklaters, Allen & Overy, Clifford Chance, Cravath, Swaine & Moore, Davis Polk & Wardwell, Freshfields and Slaughter and May

Watch the J.P. Morgan video of H4

Watch the J.P. Morgan InResidence video featuring H4

Our name

H4 Marine Chronometer

JOHN HARRISON, H4 inventor


Our Name

H4 is named after the breakthrough technological invention by British engineer John Harrison in the 18th century. H4 was the chronometer developed by Harrison that provided the solution for measuring longitude at sea – a longstanding problem for sailors in determining where they were located while on voyage.

Harrison’s H4, which became renowned for its technical innovation and devotion to quality craftsmanship, changed the way the world navigated the oceans, in turn transforming global commerce. The H4 of the 21st century takes this pioneering work as its inspiration.

Wikipedia (John Harrison)

Royal Museums Greenwich (History of JH's watches)

Who we are

The H4 team is defined by its unusual mix of people – as diverse in expertise as it is in background and outlook. We’re a motley crew of investment bankers, technologists, corporate lawyers and product designers. We’re from Manhattan and Skopje, Switzerland and Stoke. We’re Oxbridge grads and university dropouts; DotA players and polo players, all working side by side.

As different as we are, we’re first and foremost a team. United by a shared belief in the creative power of collaboration, an intense curiosity, and a common mission, we’re able to find inspiration from each others experiences. Because it’s only by blending the industry knowledge of seasoned finance professionals and lawyers with the ingenuity and perspective of expert designers and engineers, that we can build a technology capable of transforming our industry for the better.

Board of directors

Board of Directors

Joe Seifert

CEO and Co-Founder


Joe Seifert

CEO and Co-FounderJoe's LinkedIn

Joe worked at J.P. Morgan for 11 years, across debt capital markets, equity capital markets and investment banking coverage, latterly as client executive to a number of large global companies. Thereafter he spent 3 years as Chief Investment Officer for a private equity fund with a portfolio valued at c.$17 billion.

Nick Harrold

COO and Co-Founder


Nick Harrold

COO and Co-FounderNick's LinkedIn

Nick worked in J.P. Morgan’s debt capital markets business before founding an ecommerce business and working in an investment advisory boutique. Thereafter Nick was Vice President at a private equity fund, focusing on capital markets and M&A transactions.

Dusko Jordanovski

CTO and Co-Founder


Dusko Jordanovski

CTO and Co-FounderDusko's LinkedIn

Dusko is a software engineer with 11 years of professional experience including 6 years developing banking and bond-inventory software for Quipu GmbH, the software development arm of German bank ProCredit Group.

Huw Richards

Board Director

J.P. Morgan

Huw Richards

Board DirectorHuw's LinkedIn

Huw Richards is Head of Digital Investment Bank at J.P. Morgan.

Darren Cohen

Board Director

Goldman Sachs

Darren Cohen

Board DirectorDarren's LinkedIn

Darren is global head of Principal Strategic Investments (PSI), a strategy and investing team that manages a global portfolio of strategic investments in financial technology, market structure and enterprise software.

John Stecher

Observing Board Director


John Stecher

Observing Board DirectorJohn's LinkedIn

John is accountable for developing new strategies, business opportunities, and product capabilities across all lines of business for Barclays by embracing and applying disruptive technologies, driving strategic investing for the firm, and leveraging relationships with partners and the wider FinTech ecosystem.


Join our team

It is great to hear from people who are interested in being part of what we are building at H4.

For enquiries please contact:



Drop us a line

For press and media enquiries please contact:


For commercial, investor and general enquiries please contact: