DATA FOUNDATIONS
Stop asking the data person.

Ask the data.
DATA FOUNDATIONS
Stop asking the data person.

Ask the data.
DATA FOUNDATIONS
Stop asking the data person.

Ask the data.
What changes when the foundations are right.
What changes when the foundations are right.
What changes when the foundations are right.
01
01
Monday’s trade report is ready before you are
Monday’s trade report is ready before you are
Monday’s trade report is ready before you are
02
02
“Quick analysis” means today, not next week
“Quick analysis” means today, not next week
“Quick analysis” means today, not next week
03
03
Finance and marketing quote the same revenue figure
Finance and marketing quote the same revenue figure
Finance and marketing quote the same revenue figure
04
04
You have data to improve all business units
You have data to improve all business units
You have data to improve all business units
05
05
Governance embedded into the architecture
Governance embedded into the architecture
Governance embedded into the architecture
CASE STUDY
Saving 50+ hours weekly with VIEVE
We built a custom data stack with a central warehouse, automated pipelines, and tailored dashboards across teams. This replaced their black-box SaaS solution, eliminated 50+ hours of manual reporting weekly, and gave VIEVE full control and visibility over its data.



We build every layer for you in just 90 days.
We build every layer for you in just 90 days.

We build every layer for you in just 90 days.

02 · INGESTION
Automatically ingest data from all of your systems
01 · SOURCES
One customer = one united view. Connect and model all of your sources
05 · CONTEXT LAYER
Ask your data questions via the tools you already use
03 · WAREHOUSE
One secure source of truth for all your systems
04 · SEMANTIC LAYER
One definition of revenue. No discrepancies across departments.
We build every layer for you in just 90 days.

05 · CONTEXT LAYER
Ask your data questions via the tools you already use
04 · SEMANTIC LAYER
One definition of revenue. No discrepancies across departments.
03 · WAREHOUSE
One secure source of truth for all your systems
02 · INGESTION
Automatically ingest data from all of your systems
01 · SOURCES
One customer = one united view. Connect and model all of your sources
WEEK 01
Understanding your business needs and data access
MONTH 01
Data warehouse, data ingestion, & KPI modelling
MONTH 02
Dashboards & LLM querying in the warehouse
DAY 90
Ask your data anything, trust the answer in 90 days.
WEEK 01
Understanding your business needs and data access
MONTH 01
Data warehouse, data ingestion, & KPI modelling
MONTH 02
Dashboards & LLM querying in the warehouse
DAY 90
Ask your data anything, trust the answer in 90 days.
SCROLL TO EXPLORE THE 90-DAY PLAN →
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INSIGHT
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Empower your team with data-driven thinking
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I had the pleasure of working with D1 when they implemented experimentation & analytics solutions to help us measure our branded content activities. They are super knowledgeable about Marketing Analytics and were able to translate complex solutions that we could all understand.

Marisa Poster
PerfectTed, Co-Founder
Great team to work with. Deep expertise across MMM, LTV and MTA. Biggest win for me is the team is delivering high-value, auditable work that drives results - not a black box presentation for CMOs where no one looks under the hood and a real focus on making sure the outputs actually get used!

Faizal Kassam
WorldRemit, Marketing Science Lead
Day1data has been revolutionary for Twilio. We now have a steer on the reasons for our sales performance & the marketing contribution to revenue. This has helped us spend much more efficiently.

Rupali Singhal
Twilio, Head of International Marketing Analytics
We chose D1D over the others because I didn't want to get locked into yet another platform that wouldn't give me a custom solution & I wanted a better way to measure attribution than GA4. We love working with Day1!

Jamie Freed
Vieve Beauty, Chief Customer Experience Officer
Day1Data helped us move from siloed data sources to a more scalable, automated data foundation. They aligned our teams around consistent KPIs, connected our core data sources into BigQuery and built a validated semantic layer we can trust. It has given us a stronger base for reporting, decision-making and AI use cases.

Justus Buchen
Filu, COO
I had the pleasure of working with D1 when they implemented experimentation & analytics solutions to help us measure our branded content activities. They are super knowledgeable about Marketing Analytics and were able to translate complex solutions that we could all understand.

Marisa Poster
PerfectTed, Co-Founder
Great team to work with. Deep expertise across MMM, LTV and MTA. Biggest win for me is the team is delivering high-value, auditable work that drives results - not a black box presentation for CMOs where no one looks under the hood and a real focus on making sure the outputs actually get used!

Faizal Kassam
WorldRemit, Marketing Science Lead
Day1data has been revolutionary for Twilio. We now have a steer on the reasons for our sales performance & the marketing contribution to revenue. This has helped us spend much more efficiently.

Rupali Singhal
Twilio, Head of International Marketing Analytics
We chose D1D over the others because I didn't want to get locked into yet another platform that wouldn't give me a custom solution & I wanted a better way to measure attribution than GA4. We love working with Day1!

Jamie Freed
Vieve Beauty, Chief Customer Experience Officer
Day1Data helped us move from siloed data sources to a more scalable, automated data foundation. They aligned our teams around consistent KPIs, connected our core data sources into BigQuery and built a validated semantic layer we can trust. It has given us a stronger base for reporting, decision-making and AI use cases.

Justus Buchen
Filu, COO
I had the pleasure of working with D1 when they implemented experimentation & analytics solutions to help us measure our branded content activities. They are super knowledgeable about Marketing Analytics and were able to translate complex solutions that we could all understand.

Marisa Poster
PerfectTed, Co-Founder
Great team to work with. Deep expertise across MMM, LTV and MTA. Biggest win for me is the team is delivering high-value, auditable work that drives results - not a black box presentation for CMOs where no one looks under the hood and a real focus on making sure the outputs actually get used!

Faizal Kassam
WorldRemit, Marketing Science Lead
Day1data has been revolutionary for Twilio. We now have a steer on the reasons for our sales performance & the marketing contribution to revenue. This has helped us spend much more efficiently.

Rupali Singhal
Twilio, Head of International Marketing Analytics
We chose D1D over the others because I didn't want to get locked into yet another platform that wouldn't give me a custom solution & I wanted a better way to measure attribution than GA4. We love working with Day1!

Jamie Freed
Vieve Beauty, Chief Customer Experience Officer
Day1Data helped us move from siloed data sources to a more scalable, automated data foundation. They aligned our teams around consistent KPIs, connected our core data sources into BigQuery and built a validated semantic layer we can trust. It has given us a stronger base for reporting, decision-making and AI use cases.

Justus Buchen
Filu, COO
I had the pleasure of working with D1 when they implemented experimentation & analytics solutions to help us measure our branded content activities. They are super knowledgeable about Marketing Analytics and were able to translate complex solutions that we could all understand.

Marisa Poster
PerfectTed, Co-Founder
Great team to work with. Deep expertise across MMM, LTV and MTA. Biggest win for me is the team is delivering high-value, auditable work that drives results - not a black box presentation for CMOs where no one looks under the hood and a real focus on making sure the outputs actually get used!

Faizal Kassam
WorldRemit, Marketing Science Lead
Day1data has been revolutionary for Twilio. We now have a steer on the reasons for our sales performance & the marketing contribution to revenue. This has helped us spend much more efficiently.

Rupali Singhal
Twilio, Head of International Marketing Analytics
We chose D1D over the others because I didn't want to get locked into yet another platform that wouldn't give me a custom solution & I wanted a better way to measure attribution than GA4. We love working with Day1!

Jamie Freed
Vieve Beauty, Chief Customer Experience Officer
Day1Data helped us move from siloed data sources to a more scalable, automated data foundation. They aligned our teams around consistent KPIs, connected our core data sources into BigQuery and built a validated semantic layer we can trust. It has given us a stronger base for reporting, decision-making and AI use cases.

Justus Buchen
Filu, COO
I had the pleasure of working with D1 when they implemented experimentation & analytics solutions to help us measure our branded content activities. They are super knowledgeable about Marketing Analytics and were able to translate complex solutions that we could all understand.

Marisa Poster
PerfectTed, Co-Founder
Great team to work with. Deep expertise across MMM, LTV and MTA. Biggest win for me is the team is delivering high-value, auditable work that drives results - not a black box presentation for CMOs where no one looks under the hood and a real focus on making sure the outputs actually get used!

Faizal Kassam
WorldRemit, Marketing Science Lead
Day1data has been revolutionary for Twilio. We now have a steer on the reasons for our sales performance & the marketing contribution to revenue. This has helped us spend much more efficiently.

Rupali Singhal
Twilio, Head of International Marketing Analytics
We chose D1D over the others because I didn't want to get locked into yet another platform that wouldn't give me a custom solution & I wanted a better way to measure attribution than GA4. We love working with Day1!

Jamie Freed
Vieve Beauty, Chief Customer Experience Officer
Day1Data helped us move from siloed data sources to a more scalable, automated data foundation. They aligned our teams around consistent KPIs, connected our core data sources into BigQuery and built a validated semantic layer we can trust. It has given us a stronger base for reporting, decision-making and AI use cases.

Justus Buchen
Filu, COO
I had the pleasure of working with D1 when they implemented experimentation & analytics solutions to help us measure our branded content activities. They are super knowledgeable about Marketing Analytics and were able to translate complex solutions that we could all understand.

Marisa Poster
PerfectTed, Co-Founder
Great team to work with. Deep expertise across MMM, LTV and MTA. Biggest win for me is the team is delivering high-value, auditable work that drives results - not a black box presentation for CMOs where no one looks under the hood and a real focus on making sure the outputs actually get used!

Faizal Kassam
WorldRemit, Marketing Science Lead
Day1data has been revolutionary for Twilio. We now have a steer on the reasons for our sales performance & the marketing contribution to revenue. This has helped us spend much more efficiently.

Rupali Singhal
Twilio, Head of International Marketing Analytics
We chose D1D over the others because I didn't want to get locked into yet another platform that wouldn't give me a custom solution & I wanted a better way to measure attribution than GA4. We love working with Day1!

Jamie Freed
Vieve Beauty, Chief Customer Experience Officer
Day1Data helped us move from siloed data sources to a more scalable, automated data foundation. They aligned our teams around consistent KPIs, connected our core data sources into BigQuery and built a validated semantic layer we can trust. It has given us a stronger base for reporting, decision-making and AI use cases.

Justus Buchen
Filu, COO
I had the pleasure of working with D1 when they implemented experimentation & analytics solutions to help us measure our branded content activities. They are super knowledgeable about Marketing Analytics and were able to translate complex solutions that we could all understand.

Marisa Poster
PerfectTed, Co-Founder
Great team to work with. Deep expertise across MMM, LTV and MTA. Biggest win for me is the team is delivering high-value, auditable work that drives results - not a black box presentation for CMOs where no one looks under the hood and a real focus on making sure the outputs actually get used!

Faizal Kassam
WorldRemit, Marketing Science Lead
Day1data has been revolutionary for Twilio. We now have a steer on the reasons for our sales performance & the marketing contribution to revenue. This has helped us spend much more efficiently.

Rupali Singhal
Twilio, Head of International Marketing Analytics
We chose D1D over the others because I didn't want to get locked into yet another platform that wouldn't give me a custom solution & I wanted a better way to measure attribution than GA4. We love working with Day1!

Jamie Freed
Vieve Beauty, Chief Customer Experience Officer
Day1Data helped us move from siloed data sources to a more scalable, automated data foundation. They aligned our teams around consistent KPIs, connected our core data sources into BigQuery and built a validated semantic layer we can trust. It has given us a stronger base for reporting, decision-making and AI use cases.

Justus Buchen
Filu, COO
I had the pleasure of working with D1 when they implemented experimentation & analytics solutions to help us measure our branded content activities. They are super knowledgeable about Marketing Analytics and were able to translate complex solutions that we could all understand.

Marisa Poster
PerfectTed, Co-Founder
Great team to work with. Deep expertise across MMM, LTV and MTA. Biggest win for me is the team is delivering high-value, auditable work that drives results - not a black box presentation for CMOs where no one looks under the hood and a real focus on making sure the outputs actually get used!

Faizal Kassam
WorldRemit, Marketing Science Lead
Day1data has been revolutionary for Twilio. We now have a steer on the reasons for our sales performance & the marketing contribution to revenue. This has helped us spend much more efficiently.

Rupali Singhal
Twilio, Head of International Marketing Analytics
We chose D1D over the others because I didn't want to get locked into yet another platform that wouldn't give me a custom solution & I wanted a better way to measure attribution than GA4. We love working with Day1!

Jamie Freed
Vieve Beauty, Chief Customer Experience Officer
Day1Data helped us move from siloed data sources to a more scalable, automated data foundation. They aligned our teams around consistent KPIs, connected our core data sources into BigQuery and built a validated semantic layer we can trust. It has given us a stronger base for reporting, decision-making and AI use cases.

Justus Buchen
Filu, COO
Data Foundations FAQ
Data Foundations FAQ
Data Foundations FAQ
How are you different from Fospha?
Unlike SaaS tools like Fospha, we build fully bespoke models to measure true incrementality. Our approach accounts for all spend (online and offline), non-media influences such as seasonality and competitor activity and every sales channel (including retail, Amazon & Tiktok). Our pricing stays fixed as your business grows and we don’t just deliver a platform, we provide expert people to present insights and actively help optimise your marketing spend.
This sounds great, but how much do you cost?
Our plans start at £4,000/month. That includes people building bespoke models for you, software to help you self-serve insights and hands-on consultancy to support adoption and drive impact.
Surely this takes ages to set up?
Not at all - we finalise your custom models within 4 weeks and guide you through the entire process, from ideation to delivering real business value.
I need real-time insights. Is this possible?
We provide monthly insights that account for factors like pricing, promotions, competitors, and seasonality - elements that are difficult to capture accurately in real time. The risk of getting this wrong is massive, which is why we focus on delivering robust, reliable insights that drive confident decisions.
Why work with Day1Data?
We’re a team of ex-in-house data experts who’ve delivered this solution at companies like Farfetch, Tesco, Monzo, Burberry, Meta and Sky - helping them grow efficiently. Now, we’re here to do the same for you.
How are you different from Fospha?
Unlike SaaS tools like Fospha, we build fully bespoke models to measure true incrementality. Our approach accounts for all spend (online and offline), non-media influences such as seasonality and competitor activity and every sales channel (including retail, Amazon & Tiktok). Our pricing stays fixed as your business grows and we don’t just deliver a platform, we provide expert people to present insights and actively help optimise your marketing spend.
This sounds great, but how much do you cost?
Our plans start at £4,000/month. That includes people building bespoke models for you, software to help you self-serve insights and hands-on consultancy to support adoption and drive impact.
Surely this takes ages to set up?
Not at all - we finalise your custom models within 4 weeks and guide you through the entire process, from ideation to delivering real business value.
I need real-time insights. Is this possible?
We provide monthly insights that account for factors like pricing, promotions, competitors, and seasonality - elements that are difficult to capture accurately in real time. The risk of getting this wrong is massive, which is why we focus on delivering robust, reliable insights that drive confident decisions.
Why work with Day1Data?
We’re a team of ex-in-house data experts who’ve delivered this solution at companies like Farfetch, Tesco, Monzo, Burberry, Meta and Sky - helping them grow efficiently. Now, we’re here to do the same for you.
























