Marketing science for digital pharmacies and GLP-1 providers.
Who face rising CACs, growing competition and over-reliance on Paid Search.
Know where to spend, when to scale and what to cut
We show which channels are saturated, under-funded or worth scaling. So you can move budget based on incremental growth, not last-click attribution or platform-reported ROAS.
Forecast growth in a market shaped by demand, price and competition
We include these variables in our models to help marketing and finance teams plan spend across all channels, predict performance and protect profitability.
Leading brands use Day1Data.
Leading brands use Day1Data.
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