The team in discussion
Leadership & scientific board

Operators and scientists, in the same room.

Thrive is built by people who have run workforces and people who have spent careers measuring them — psychometricians, physiologists and organisational researchers working alongside operators who've felt the cost of getting it wrong.

The leadership team

The people accountable
for the instrument.

A small team with an unusual mix: workforce operators, measurement scientists and engineers. Every score the platform produces is owned by someone here.

Jerry Fiser, Founder & CEO
Jerry Fiser
Founder & CEO

Sets the product thesis: that capacity — not sentiment — is the leading indicator of sustainable performance. Previously led people and operations at scale across [sector].

StrategyProductPrague
Dr. Allison Hampton, Chief Science Officer
Dr. Allison Hampton
Chief Science Officer

Owns the psychometric validity of the Thrive Index — factor structure, reliability and predictive testing. Background in quantitative psychology and validated-instrument design.

PsychometricsValidationPhD
Natalia Kahlon, Head of Product & Design
Natalia Kahlon
Head of Product & Design

Turns the science into something a manager reads in four minutes. Responsible for the dashboards, the action layer and the rule that every score links to a recommendation.

ProductDesignResearch
Helen Barker, Head of Engagement Science
Helen Barker
Head of Engagement Science

Owns the validity of the Engagement Index — psychological safety, meaning and the organisational conditions that enable performance — held to the standard of the organisational-behaviour field. Background in HR and people analytics.

Org psychologyEngagementHR
Marcin Bulik, Head of Research
Marcin Bulik
Head of Research

Runs the validation programme — the longitudinal cohorts and the planned biomarker study that ties self-report to objective physiology. Background in human physiology and field studies.

ValidationPhysiologyStudies
Tom Bradshaw, Head of Customer
Tom Bradshaw
Head of Customer

Sits with CHROs and operators through deployment — making sure the index lands as a plan, not a report. Previously led people analytics inside enterprise HR.

DeploymentPeople analyticsSF
2
Offices · Prague + San Francisco
10,000+
Respondents in validation cohorts
8
Domains across two indices
N ≥ 7
Minimum aggregate · privacy by design
Scientific advisory board

The people who keep us honest.

Independent advisors who review the methodology, challenge the claims and hold the validation programme to a clinical standard. They are paid for their time, not their endorsement.

[Sleep & circadian advisor]
Sleep & recovery

Reviews how the Rest domain is operationalised — sleep architecture, circadian consistency and recovery — against the clinical sleep-science literature.

Circadian biologyAdvisor
[Stress physiology advisor]
Stress & allostatic load

Advises on the Recovery and Calm domains — how chronic stress accumulates physiologically, and how to measure it without over-claiming.

NeuroendocrinologyAdvisor
[Organisational psychology advisor]
Engagement & culture

Holds the Engagement Index to the standard of the organisational-behaviour field — psychological safety, meaning and the conditions that enable performance.

Org behaviourAdvisor
[Psychometrics advisor]
Measurement & validity

Independent reviewer of the index's factor structure, reliability and measurement invariance across regions — the maths behind whether a score means what we say it means.

Quantitative methodsAdvisor
The research foundation

Standing on published science.

The Thrive Index is built on the peer-reviewed work of the researchers who define these fields. They are not affiliated with Thrive at Work — their published research is the foundation our instruments are derived and validated against.

Sleep & recovery
Matthew WalkerUC Berkeley · Center for Human Sleep Science
Russell FosterOxford · Sleep & Circadian Institute
Charles CzeislerHarvard Medical · Division of Sleep Medicine
Satchin PandaSalk Institute · Regulatory Biology
Stress & burnout
Christina MaslachUC Berkeley · Burnout research lead
Robert SapolskyStanford · Stress physiology
Bruce McEwenRockefeller · Allostatic load
Elizabeth BlackburnUCSF · Nobel Laureate, telomere biology
Engagement & culture
Amy EdmondsonHarvard Business School · Psychological safety
Adam GrantWharton · Organisational psychology
Teresa AmabileHarvard Business School · Progress principle
Daniel CableLondon Business School · Meaning & identity

To be clear: the researchers above are cited as the scientific basis for our methodology. Listing them is an acknowledgement of their published work — not a claim of endorsement or affiliation.

Build the instrument

We're hiring the people
who'll shape this.

Scientists, engineers and operators who think workforce measurement deserves the rigour of clinical science. If that's you, we'd like to talk.