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Turn retail media into your most profitable channel
Turn retail media into your most profitable channel
Turn retail media into your most profitable channel
One senior team across every retailer network, measured on the incremental revenue and contribution profit that actually move your business.
One senior team across every retailer network, measured on the incremental revenue and contribution profit that actually move your business.
UNMUTE
Every network runs on its own rules and grades its own returns, but your shoppers don't. The same customer buys across Amazon, Walmart, and Instacart in one week; managed in silos, spend climbs while margin disappears.
Darkroom runs them as one system on your P&L, powered by Shadow, our always-on AI platform: one live view across every network, measured in incrementality and contribution profit, not platform ROAS.
Every network runs on its own rules and grades its own returns, but your shoppers don't. The same customer buys across Amazon, Walmart, and Instacart in one week; managed in silos, spend climbs while margin disappears.
Darkroom runs them as one system on your P&L, powered by Shadow, our always-on AI platform: one live view across every network, measured in incrementality and contribution profit, not platform ROAS.
What we deliver
1
Every network run and paced as one system
We plan, bid, and reallocate across Amazon, Walmart Connect, Target Roundel, Instacart, and Criteo, adding networks like Kroger and Home Depot as you grow. Budget follows the networks and SKUs returning the most contribution profit, programmatic (DSP) included where it earns its place.
1
Every network run and paced as one system
We plan, bid, and reallocate across Amazon, Walmart Connect, Target Roundel, Instacart, and Criteo, adding networks like Kroger and Home Depot as you grow. Budget follows the networks and SKUs returning the most contribution profit, programmatic (DSP) included where it earns its place.
2
Measurement that separates incremental from inevitable
We isolate the sales your ads actually caused, using holdout and geo tests rather than platform-reported ROAS. You fund the spend that drove growth and cut the spend for sales that would have happened anyway.
2
Measurement that separates incremental from inevitable
We isolate the sales your ads actually caused, using holdout and geo tests rather than platform-reported ROAS. You fund the spend that drove growth and cut the spend for sales that would have happened anyway.
3
Customer experience, built into the shelf
Every retailer page is a CX problem before it's a media one. We optimize content, imagery, and on-site search so the shopper journey converts and your products win the click after they win the impression.
3
Customer experience, built into the shelf
Every retailer page is a CX problem before it's a media one. We optimize content, imagery, and on-site search so the shopper journey converts and your products win the click after they win the impression.
How it works
How it works
Audit and plan
Audit and plan
We audit your retailer accounts, digital shelf, and current spend, then map share of voice against competitors. You get a retail media plan tied to contribution profit, not platform ROAS.
We audit your retailer accounts, digital shelf, and current spend, then map share of voice against competitors. You get a retail media plan tied to contribution profit, not platform ROAS.
Build and launch
Build and launch
We rebuild campaigns, fix product content and search, and launch with consistent bidding. Shadow connects every platform, monitoring performance so we act on signals.
We rebuild campaigns, fix product content and search, and launch with consistent bidding. Shadow connects every platform, monitoring performance so we act on signals.
Optimize and reallocate
Optimize and reallocate
We move budget toward the networks and SKUs returning the most profit as the data moves. You see it all in Shadow's live view from day one, plus a weekly readout from your strategist on what moved and why.
We move budget toward the networks and SKUs returning the most profit as the data moves. You see it all in Shadow's live view from day one, plus a weekly readout from your strategist on what moved and why.
Scale and compound
Scale and compound
We expand into new retailers and in-store retail media as the model proves out, compounding what works across your portfolio.
We expand into new retailers and in-store retail media as the model proves out, compounding what works across your portfolio.
Where we take you next
Where we take you next
Amazon is where most brands have the cleanest data, so it's where the model proves out first. From there we run the same system across Walmart Connect, Target Roundel, Instacart, and Criteo, moving budget to whatever returns the most contribution profit as your distribution grows.
Acquisition costs keep climbing, and a customer who buys once is funding growth that doesn't compound.
Darkroom builds retention programs with segmentation, post-purchase logic and lifecycle architecture that turn one-time buyers into long-term revenue.
Frequent questions we receive
services & pricing
Do you work with brands new to retail media, or only those already running it?
Both. We launch brands onto their first retailer networks and we fix fragmented programs that have grown faster than anyone can manage.
Which retail media networks do you manage?
Walmart Connect, Target Roundel, and Instacart, plus Criteo — which alone puts you on-site across retailers like Rite Aid, Walgreens, CVS, Meijer, and Shipt, and extends off-site from there. Amazon runs deepest and has its own dedicated program. We add networks like Kroger, Home Depot, and Lowe's as your distribution grows. One strategy and one source of truth across all of them, not a separate team per platform.
How is your retail media management different from other agencies?
Most retail media advertising is run platform by platform, with each network graded on the returns it reports for itself. Darkroom runs every network as one system: a senior strategist owns your retail media P&L directly, everything runs on one always-on layer through Shadow, and we measure in contribution profit and incrementality, not platform ROAS. Book a call to see how that maps to your retailers.
Why run every network as one system instead of platform by platform?
Because shoppers stopped picking sides. The "Amazon shopper" and the "Walmart shopper" barely exist anymore — the same person buys across Amazon, Walmart, Instacart, and more in the same week. Manage those networks in silos and you bid against yourself, double-count the same customer, and miss where demand is actually moving. One system, one budget, one view of the shopper — so spend follows the customer, not the platform.
Why not just trust the returns the platforms report?
Because every network grades its own homework — the number it reports is the one that justifies spending more with it. We measure incrementality independently: the sales that happened because of the ad, not the ones that would have landed anyway. No single method is clean. Holdout and geo tests are rigorous but blunt and expensive to run constantly. Media mix modeling sees the whole picture but only holds up with careful triangulation. PSA lift studies are precise but limited in scope. So we don't bet on one — we match the method to the question, triangulate across them, and run them selectively where the spend justifies the rigor. You fund the growth that's real and cut the spend that isn't.
How does retail media connect to customer experience (CX)?
Every impression lands on a retailer page, and that page is the shopper's experience of your brand. We optimize the full CX — content, imagery, search, conversion — so the media you pay for turns into the sale.
Are you a Walmart, Target, and Instacart advertising agency?
Yes. Darkroom runs Walmart Connect, Target Roundel, and Instacart advertising as one connected retail media program, with Criteo extending reach off-site. You get one senior strategist across every network, not a separate agency per platform.
onboarding & process
What does onboarding look like?
We start by auditing your retailer accounts, digital shelf, and current spend, then build your retail media plan before launching anything. Once you approve it, we rebuild campaigns across networks and go live on consistent bidding logic, with Shadow connected from day one.
How quickly will I see results?
The first 1–2 weeks are audit and planning, with campaigns rebuilt and launched by week 4. Meaningful movement on efficiency and shelf performance typically follows in the first full quarter, with compounding gains after.
Frequent questions we receive
services & pricing
Do you work with brands new to retail media, or only those already running it?
Both. We launch brands onto their first retailer networks and we fix fragmented programs that have grown faster than anyone can manage.
Which retail media networks do you manage?
Walmart Connect, Target Roundel, and Instacart, plus Criteo — which alone puts you on-site across retailers like Rite Aid, Walgreens, CVS, Meijer, and Shipt, and extends off-site from there. Amazon runs deepest and has its own dedicated program. We add networks like Kroger, Home Depot, and Lowe's as your distribution grows. One strategy and one source of truth across all of them, not a separate team per platform.
How is your retail media management different from other agencies?
Most retail media advertising is run platform by platform, with each network graded on the returns it reports for itself. Darkroom runs every network as one system: a senior strategist owns your retail media P&L directly, everything runs on one always-on layer through Shadow, and we measure in contribution profit and incrementality, not platform ROAS. Book a call to see how that maps to your retailers.
Why run every network as one system instead of platform by platform?
Because shoppers stopped picking sides. The "Amazon shopper" and the "Walmart shopper" barely exist anymore — the same person buys across Amazon, Walmart, Instacart, and more in the same week. Manage those networks in silos and you bid against yourself, double-count the same customer, and miss where demand is actually moving. One system, one budget, one view of the shopper — so spend follows the customer, not the platform.
Why not just trust the returns the platforms report?
Because every network grades its own homework — the number it reports is the one that justifies spending more with it. We measure incrementality independently: the sales that happened because of the ad, not the ones that would have landed anyway. No single method is clean. Holdout and geo tests are rigorous but blunt and expensive to run constantly. Media mix modeling sees the whole picture but only holds up with careful triangulation. PSA lift studies are precise but limited in scope. So we don't bet on one — we match the method to the question, triangulate across them, and run them selectively where the spend justifies the rigor. You fund the growth that's real and cut the spend that isn't.
How does retail media connect to customer experience (CX)?
Every impression lands on a retailer page, and that page is the shopper's experience of your brand. We optimize the full CX — content, imagery, search, conversion — so the media you pay for turns into the sale.
Are you a Walmart, Target, and Instacart advertising agency?
Yes. Darkroom runs Walmart Connect, Target Roundel, and Instacart advertising as one connected retail media program, with Criteo extending reach off-site. You get one senior strategist across every network, not a separate agency per platform.
onboarding & process
What does onboarding look like?
We start by auditing your retailer accounts, digital shelf, and current spend, then build your retail media plan before launching anything. Once you approve it, we rebuild campaigns across networks and go live on consistent bidding logic, with Shadow connected from day one.
How quickly will I see results?
The first 1–2 weeks are audit and planning, with campaigns rebuilt and launched by week 4. Meaningful movement on efficiency and shelf performance typically follows in the first full quarter, with compounding gains after.
Frequent questions we receive
services & pricing
Do you work with brands new to retail media, or only those already running it?
Both. We launch brands onto their first retailer networks and we fix fragmented programs that have grown faster than anyone can manage.
Which retail media networks do you manage?
Walmart Connect, Target Roundel, and Instacart, plus Criteo — which alone puts you on-site across retailers like Rite Aid, Walgreens, CVS, Meijer, and Shipt, and extends off-site from there. Amazon runs deepest and has its own dedicated program. We add networks like Kroger, Home Depot, and Lowe's as your distribution grows. One strategy and one source of truth across all of them, not a separate team per platform.
How is your retail media management different from other agencies?
Most retail media advertising is run platform by platform, with each network graded on the returns it reports for itself. Darkroom runs every network as one system: a senior strategist owns your retail media P&L directly, everything runs on one always-on layer through Shadow, and we measure in contribution profit and incrementality, not platform ROAS. Book a call to see how that maps to your retailers.
Why run every network as one system instead of platform by platform?
Because shoppers stopped picking sides. The "Amazon shopper" and the "Walmart shopper" barely exist anymore — the same person buys across Amazon, Walmart, Instacart, and more in the same week. Manage those networks in silos and you bid against yourself, double-count the same customer, and miss where demand is actually moving. One system, one budget, one view of the shopper — so spend follows the customer, not the platform.
Why not just trust the returns the platforms report?
Because every network grades its own homework — the number it reports is the one that justifies spending more with it. We measure incrementality independently: the sales that happened because of the ad, not the ones that would have landed anyway. No single method is clean. Holdout and geo tests are rigorous but blunt and expensive to run constantly. Media mix modeling sees the whole picture but only holds up with careful triangulation. PSA lift studies are precise but limited in scope. So we don't bet on one — we match the method to the question, triangulate across them, and run them selectively where the spend justifies the rigor. You fund the growth that's real and cut the spend that isn't.
How does retail media connect to customer experience (CX)?
Every impression lands on a retailer page, and that page is the shopper's experience of your brand. We optimize the full CX — content, imagery, search, conversion — so the media you pay for turns into the sale.
Are you a Walmart, Target, and Instacart advertising agency?
Yes. Darkroom runs Walmart Connect, Target Roundel, and Instacart advertising as one connected retail media program, with Criteo extending reach off-site. You get one senior strategist across every network, not a separate agency per platform.
onboarding & process
What does onboarding look like?
We start by auditing your retailer accounts, digital shelf, and current spend, then build your retail media plan before launching anything. Once you approve it, we rebuild campaigns across networks and go live on consistent bidding logic, with Shadow connected from day one.
How quickly will I see results?
The first 1–2 weeks are audit and planning, with campaigns rebuilt and launched by week 4. Meaningful movement on efficiency and shelf performance typically follows in the first full quarter, with compounding gains after.
Frequent questions we receive
services & pricing
Do you work with brands new to retail media, or only those already running it?
Both. We launch brands onto their first retailer networks and we fix fragmented programs that have grown faster than anyone can manage.
Which retail media networks do you manage?
Walmart Connect, Target Roundel, and Instacart, plus Criteo — which alone puts you on-site across retailers like Rite Aid, Walgreens, CVS, Meijer, and Shipt, and extends off-site from there. Amazon runs deepest and has its own dedicated program. We add networks like Kroger, Home Depot, and Lowe's as your distribution grows. One strategy and one source of truth across all of them, not a separate team per platform.
How is your retail media management different from other agencies?
Most retail media advertising is run platform by platform, with each network graded on the returns it reports for itself. Darkroom runs every network as one system: a senior strategist owns your retail media P&L directly, everything runs on one always-on layer through Shadow, and we measure in contribution profit and incrementality, not platform ROAS. Book a call to see how that maps to your retailers.
Why run every network as one system instead of platform by platform?
Because shoppers stopped picking sides. The "Amazon shopper" and the "Walmart shopper" barely exist anymore — the same person buys across Amazon, Walmart, Instacart, and more in the same week. Manage those networks in silos and you bid against yourself, double-count the same customer, and miss where demand is actually moving. One system, one budget, one view of the shopper — so spend follows the customer, not the platform.
Why not just trust the returns the platforms report?
Because every network grades its own homework — the number it reports is the one that justifies spending more with it. We measure incrementality independently: the sales that happened because of the ad, not the ones that would have landed anyway. No single method is clean. Holdout and geo tests are rigorous but blunt and expensive to run constantly. Media mix modeling sees the whole picture but only holds up with careful triangulation. PSA lift studies are precise but limited in scope. So we don't bet on one — we match the method to the question, triangulate across them, and run them selectively where the spend justifies the rigor. You fund the growth that's real and cut the spend that isn't.
How does retail media connect to customer experience (CX)?
Every impression lands on a retailer page, and that page is the shopper's experience of your brand. We optimize the full CX — content, imagery, search, conversion — so the media you pay for turns into the sale.
Are you a Walmart, Target, and Instacart advertising agency?
Yes. Darkroom runs Walmart Connect, Target Roundel, and Instacart advertising as one connected retail media program, with Criteo extending reach off-site. You get one senior strategist across every network, not a separate agency per platform.
onboarding & process
What does onboarding look like?
We start by auditing your retailer accounts, digital shelf, and current spend, then build your retail media plan before launching anything. Once you approve it, we rebuild campaigns across networks and go live on consistent bidding logic, with Shadow connected from day one.
How quickly will I see results?
The first 1–2 weeks are audit and planning, with campaigns rebuilt and launched by week 4. Meaningful movement on efficiency and shelf performance typically follows in the first full quarter, with compounding gains after.
