If you have started researching marketing agencies, you have probably run into the big names: WPP, Publicis, Omnicom. They are the giants of the industry, the companies behind the world’s biggest ad campaigns. And if you are a small business or a startup, they are almost certainly the wrong place to start. Here is who the big agencies actually are, who they are built for, and the alternative that gives you agency-quality work at a size that fits.
What are the big 5 marketing agencies?
The first thing to understand is that the “big marketing agencies” are not agencies at all. They are holding companies that own dozens of individual agency brands underneath them.
Historically, the big five were:
- WPP (owns Ogilvy, VML, GroupM and many more)
- Omnicom (owns BBDO, DDB, TBWA and others)
- Publicis Groupe (owns Leo Burnett, Saatchi & Saatchi, Publicis Sapient)
- Interpublic (IPG) (owns McCann, FCB, MullenLowe)
- Dentsu (the largest agency group in Japan, with a global network)
That list changed recently. In November 2025, Omnicom completed its acquisition of Interpublic, creating the world’s largest marketing holding company by revenue and overtaking WPP and Publicis. So the honest 2026 answer to “what are the big five” is really four dominant groups: Omnicom (now including IPG), WPP, Publicis Groupe, and Dentsu.
The detail that matters for you is not the exact count. It is what these companies are: enterprise-scale holding companies whose clients are global brands with budgets to match.
Who are the big agencies actually built for?
The big holding companies exist to serve global enterprise brands: the Fortune 500, the multinational consumer names, the companies running campaigns across dozens of markets at once. Everything about how they operate is shaped by that customer.
- The budgets are enterprise-sized. Meaningful engagements start in the tens of thousands of dollars a month and run far higher, often into six and seven figures a year for a full-service account. That pricing is built for a corporate marketing budget, not a small business spending a few thousand a month.
- The contracts are long. Enterprise agency relationships are typically annual retainers with real notice periods, not month-to-month arrangements.
- The onboarding is slow. Standing up a large account, with its research, strategy, and layered approvals, is measured in months, not days.
- The teams are layered. Your account runs through account managers, strategists, and creatives, with the most senior people spread across the biggest clients. On a small account, you rarely get their attention.
None of this is a criticism. It is exactly right for a multinational running global campaigns. It is exactly wrong for a founder who needs marketing working this quarter.
Why the big agencies are the wrong fit for an SMB or startup
If you are a small business or a startup, the mismatch is structural, not a matter of finding the right contact.
You need to move in weeks, not quarters. You need a budget measured in hundreds or low thousands a month, not tens of thousands. You need senior attention on your account, because you do not have the volume to justify a big team, and a junior handling your work will not move the needle. And you often need strategy and execution together, because you have no in-house marketing team to run a plan an agency hands you.
The big agencies are built for the opposite of every one of those needs. Going to a holding-company agency as an SMB usually means paying enterprise prices for junior attention on a slow timeline. That is not the agencies doing anything wrong. It is the wrong tool for your size.
Big agency vs the alternatives: a comparison
| Option | Typical cost | Who it is for | Owns your strategy | Speed to start |
|---|---|---|---|---|
| Big holding-company agency | Tens of thousands+/month | Global enterprise brands | Sometimes | Months |
| Boutique / independent agency | $3,000 to $15,000+/month per channel | Mid-market, defined needs | Rarely | Weeks |
| Freelancer / contractor | $50 to $200+/hour | One-off or single-channel work | No | Days, but fragmented |
| In-house hire | $152,000+/year all-in per hire | Companies ready for a permanent team | The hire, over time | Months to recruit |
| Managed marketing service | $319 to $2,700/month | Startups and SMBs with no team | Yes | Days |
The pattern is clear. The big agencies sit at the top for enterprise scale. As you move down for smaller budgets, most options either cover only one channel (boutique agency, freelancer) or require you to build and manage the function yourself (in-house hire). The managed marketing service is the one row built specifically for a small business with no marketing team: full-stack, fast to start, and priced for your size.
What is the alternative for a small business?
A managed marketing service gives you the thing a big agency is built to deliver, quality marketing work, at the size and pace a small business actually needs.
Instead of one channel executed against a brief you have to write, you get the whole stack: brand strategy, a website, awareness through content, social, and email, and the sales collateral to support it, all built and run by one team. Instead of an enterprise retainer and a months-long onboard, you get a flat monthly fee from $319 to $2,700 a month, a start measured in days, and no long contract. It is the model we cover in more depth in our guide to the fractional CMO, agency, and managed service comparison.
The trade is simple. You are not getting a holding company’s global reach, because you do not need it. You are getting agency-quality output at SMB economics, with strategy and execution in one place.
How to choose between them
Match the tool to your situation, not to the biggest name you recognize.
- Go to a big holding-company agency if you are an enterprise brand with a large budget, running at scale across markets. That is who they are for.
- Consider a boutique agency or freelancer if you have a defined strategy and need one specific channel executed well, and you have someone in-house to own the direction.
- Choose a managed marketing service if you are a founder-led business or startup with no marketing team, you need strategy and execution together, and you want to move now without an enterprise contract.
If you are not sure whether you even need an agency yet, our guides on whether you need a marketing agency and how to choose a marketing agency walk through the decision. And if the honest answer is that you need the whole thing planned and done, outsourced marketing run as a managed service is the model built for exactly that.
When you are ready, talk to us and we will tell you honestly whether a big agency, a boutique, a freelancer, or a managed service is the right fit for where your business is, even if the answer is not us.
Related reading: Fractional CMO vs agency vs managed service | Do I need a marketing agency? | The marketing agency alternative for small business
Gameplan is a managed marketing service built for startups and small businesses without a marketing team. We handle strategy and delivery together: brand, website, awareness, and collateral on a flat monthly fee, from $319 to $2,700/month, no long contracts, cancel any time. See pricing or talk to us and we will honestly tell you if we are the right fit.