Company
The people who stand behind the figures
GraphAtlas builds calculation engines for regulations, and the evidence that each result can be checked. Methodologists who have worked inside banks, insurers and laboratories read the texts. Engineers write the code. Neither signs off without the other.
What we hold ourselves to
Four rules, each one checkable
Each of these is a claim that a visitor can test on this site. Where a page shows the evidence, it is linked.
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Say how sure we are
Every statement about an engine is proved, certified or tested, and says which. A statement that none of the three can back is not made.
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Read the text
A rule is written from the clause, and the clause is named beside it. We list the passages we have read, so a gap shows.
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Check each other
The person who wrote a rule does not review it. Someone from the other discipline does, with the text open next to the code.
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Publish our mistakes
A confirmed error in a statement on the verification page is published in the changelog, with the date.
People
Who answers for what
Each remit says what a person answers for. Where a person has written an essay, it is listed under the name.
Leadership
2 people
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Imogen Hartley-Voss
Co-founder and Chief Executive, London
Sets what we build, and which statements we are willing to put our name to.
Before Led market risk methodology at a European bank for eleven years.
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Tomasz Wierzbicki
Co-founder and Chief Technology Officer, London
The kernel, the receipts and the rule that every engine gives the same answer everywhere.
Before Wrote numerical libraries for a clearing house and a weather office.
Methodology
4 people
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Priya Raghunathan
Head of Insurance Methodology, London
Solvency II, ICS, PRIIPs and the reserving engines, from the first reading of a text to the release.
Before Chief actuary of a mid-sized life insurer; Fellow of the Institute and Faculty of Actuaries.
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Marcus Teller
Head of Markets Methodology, London
SIMM, FRTB-SA and SA-CVA, and the conversations with the people who validate them.
Before Ran the trading book capital team at a global bank during its first FRTB programme.
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Dr Sunniva Lund
Head of Environment and Vehicles, Barcelona
AERMOD and WLTP, where the standard is a procedure and the work is to follow it exactly.
Before Atmospheric scientist; reviewed dispersion modelling for a national environment agency.
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Elif Demirci
Head of Cryptographic Assurance, Barcelona
PQC inventory and entropy validation: what is deployed, what it depends on, and whether the noise is noisy enough.
Before Evaluated hardware random number generators for an accredited test laboratory.
Verification and delivery
4 people
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Dr Anneliese Okafor
Chief Scientist, Verification, Barcelona
The proofs, the mutation tests, and the wording of every statement on the verification page.
Before Formal methods researcher; published on decision procedures for floating point.
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Jonas Falk
Head of Platform, Barcelona
The edge deployment, the release pipeline and the promise that last year’s receipt still verifies.
Before Site reliability lead for a payments network.
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Rafaela Quintero
Head of Customer Engagement, London
Briefings, sample books and parallel runs. The person who explains a difference when you find one.
Before Model validation lead at an insurance group.
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Chidi Abara
Principal Engineer, Interfaces, Barcelona
The web, command line, library and API surfaces, and keeping them to one set of tests.
Before Built trading front ends and the toolchains behind them.
Offices
Two offices, one working day
London is the headquarters and the registered office, Barcelona is an hour ahead of it, and a briefing is held in the office closest to you.
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London
Level 39, One Canada Square Canary Wharf London E14 5AB United KingdomHeadquarters and registered office
Leadership, the kernel, customer engagement, and methodology for insurance and markets.
Here Hartley-Voss, Wierzbicki, Raghunathan, Teller, Quintero
Local time
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Barcelona
Barcelona Finance Hub by Aticco Passeig de Gràcia, 19 08007 Barcelona SpainThe platform, verification and interfaces, and methodology for environment, vehicles and cryptographic assurance.
Here Okafor, Lund, Demirci, Falk, Abara
Local time
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By appointment
Calls and visits are arranged.
Book a demo, or write to contact@graphatlas.com, and a named person replies within two working days with a time, in an office or on screen.
The offices are staffed from 09:00 to 17:30 on weekdays, local time. A visit is by appointment.