Prime Signal has managed over ₹84 crore in ad spend across 260 brands and 22 cities. Its founders argue the Indian growth agency model is broken — and that the fix is refusing to take a retainer without a roadmap.
There is a particular conversation that repeats itself in Indian small-business boardrooms, and Manpreet Singh has heard it several hundred times.
A founder has been spending on advertising for two years. The dashboard is full. Impressions are up. The agency sends a monthly deck with a lot of green arrows. And yet nobody in the room can answer the only question the promoter actually cares about: did any of this make us money?
“Most Indian SMBs are not under-marketed,” says Singh, co-founder of Prime Signal, the Noida-headquartered growth firm. “They are over-serviced and under-diagnosed. Someone sold them nine channels before anyone bothered to look at their unit economics.”
Prime Signal, which operates out of Sector 121 in Noida and has been in the market since 2016, has built its entire commercial proposition around that complaint. The firm describes itself as a “full-stack growth partner” — marketing, finance, operations and brand run as a single system rather than as separate vendor relationships. By its own published figures, it has managed more than ₹84 crore in advertising spend, generated over 8 lakh leads, and served 260 brands across 22 Indian cities and ten industries. It carries an average client rating of 4.8 out of 5.
The most unusual thing about Prime Signal is not what it sells. It is what it declines to sell.
“No retainer without a roadmap” is written into the firm’s operating principles, and co-founder Abhinav Prakash treats it as non-negotiable. Before any campaign goes live, the firm runs what it calls a diagnosis: an audit of every channel, a review of the client’s numbers, and direct interviews with the client’s own customers.
“An agency that starts spending your money in week one has told you something important about itself,” Prakash says. “It has told you the media budget is its product. Ours isn’t. Our product is the decision about where the money should go — and sometimes that decision is that you should spend less.”
Prakash’s insistence on this sequencing is not accidental. His background is in finance and compliance rather than creative, and Prime Signal is one of the few Indian growth firms that runs a compliance-and-finance service line alongside performance marketing. The logic is that a business with broken margins does not have a marketing problem, and pouring paid media on top of it accelerates the loss rather than the growth.
The engagement itself runs on a four-step, ninety-day structure the firm calls Diagnose, Design, Deploy, Compound. The design step happens in a single working session with the client’s leadership, and both sides sign the resulting plan. First results are contracted to appear within thirty days. The final phase is explicitly about making the agency less necessary — systemising what worked and training the client’s internal team to run it.
“We are trying to build something the client can eventually operate without us,” Singh says. “That is a strange thing for an agency to say out loud. It is also the only version of this business I am interested in running.”
Prime Signal organises its work into nine service lines it refers to as signals: lead generation, performance marketing, discovery marketing covering SEO, AEO and GEO, content marketing, retention marketing, conversion rate optimisation, authority marketing, proximity or local marketing, and compliance and finance.
The breadth is deliberate and, the founders concede, commercially inconvenient. It is easier to sell one thing well than nine things together.
“The reason we do it anyway is attribution,” Prakash says. “If your ads are with one vendor, your email with another and your website with a third, nobody owns the number. Everybody owns a slice of the number. That is how a company can spend for three years and never find out what worked.”
The client roster reflects the range. On the consumer side the firm has worked with nutrition and wellness brands including GoodMonk and Wellbeing Nutrition, and with fashion and lifestyle labels such as RDKLU, Deepa Gurnani and fine jewellery house Renu Oberoi. In pet nutrition it counts Pawpeye, the vet-formulated dog and cat food brand. Its industrial and B2B work includes Ester Industries and manufacturing clients such as Vijay Plastics, where the challenge is less about brand awareness and more about generating qualified enquiries in a narrow buyer universe.
The results the firm publishes are stated in the client’s own operating terms rather than in agency metrics. A Delhi streetwear label moved from 420 to 1,950 monthly orders across five months. A Bengaluru food and beverage brand took monthly D2C revenue from ₹4 lakh to ₹22 lakh while lifting return on ad spend from 2.1x to 5.3x. A Delhi dermatology clinic went from 45 to 210 monthly bookings as cost per lead fell from ₹1,850 to ₹620. A Coimbatore CNC manufacturer went from 11 to 64 inbound calls a week.
“Nobody takes impressions to their board,” Singh says. “They take orders, bookings and margin. So those are the only numbers we agree to be measured on.”
The firm’s stated mission is to help 10,000 businesses achieve what it calls sustainable, scalable growth by 2030 — a figure that is roughly forty times its current client count and which the founders acknowledge cannot be reached by adding headcount.
“You cannot service 10,000 companies the way we service 260,” Prakash says. “The only route is productising the diagnosis — making the first ninety days repeatable enough that it works without either of us in the room. That is the actual engineering problem in front of us.”
Prime Signal currently serves clients across 22 Indian cities and in four markets beyond India: the UAE, the United Kingdom, the United States and Australia.
Whether the firm reaches its 2030 target is an open question. But its founders have picked an uncomfortable position to defend in a sector that rarely volunteers one — that the honest answer to a growth brief is sometimes that the client is not ready to grow yet.
“We lose deals over that,” Singh says. “We would rather lose the deal than the client.”
Website https://share.google/6ZawWS7cV70NZgFJ4
Founders Linkedin Bios:
Manpreet Singh: https://www.linkedin.com/in/manpreet-singh-project-manager/
Abhinav Prakash: https://www.linkedin.com/in/caabhinav-prakash/
Prime Signal is headquartered at Sector 121, Noida, Uttar Pradesh. More at primesignal.in.
