Startup cost
$100k–$500k
TRUiC Business Ideas
Decision Snapshot
Idea Score
46
Startup cost
$100k–$500k
Profit margin
22%
Break-even
4 mo–12 mo
Time to launch
12 wk–36 wk
Demand trend
Stable
5-yr failure rate
—
Capital intensity
Very high
Time commitment
Full time

In today’s marketing-saturated world, businesses need creative and effective advertising campaigns to help attract customers. Advertising agencies specialize in creating and planning these campaigns. In the United States, which is the world’s largest advertising marketplace, the industry’s annual revenue is $44 billion and growing.
Our guide is in 3 parts:
Since advertising agencies provide services rather than products, the startup costs of starting an agency are minimal. Ideally, agencies should have an office for meeting clients, computers for working on projects, an internet connection and a printer for printing any physical marketing collateral. Agencies also need a website.
There are ways of keeping rent, computer costs, internet access and utilities, and printer costs extremely low, though. Business owners who are operating on a tight budget can:
Rent an office on an as-needed basis
Work in coffee shops that offer free Wi-Fi
Use a personal computer they already own
Outsource any printing to a local print shop
If necessary, business owners can even meet clients in coffee shops — thus limiting the startup costs to little more than a website and a few lattes. (Any printing costs can be paid after a client has made a deposit for a project.)
The ongoing expenses for an advertising agency include rent for an office (if the agency has one), computer costs, internet access fees and employees’ salaries. Employees’ salaries are typically the largest ongoing expense for an agency.
Advertising agency’s clients are most often other businesses, corporations or non-profit organizations. A particular agency’s ideal client will be one that is within an agency’s marketing niche and needs ongoing work. Often, such a client will ask to place an agency on retainer. (A retainer is an arrangement where a client pays an agency a consistent amount each week or month and, in exchange, the agency sets aside a certain number of hours each period to work on the client’s campaigns.)
An advertising agency makes money by charging clients for creating and planning advertising campaigns. In most situations, an agency will pitch a potential client without being compensated. If the client likes the pitch, the agency is contracted to execute their proposed campaign.
Advertising agencies often charge clients either an hourly fee or a commission. According to Two Hats Consulting & Web Design Services, hourly fees are typically calculated by dividing the annual salary of the person (or people) who will work on a project by 1,500 (the number of billable hours a typical person might work in a year). Commissions are traditionally 15 percent of all media and production charges.
As mentioned above, advertising agencies can bring in billions of dollars annually, but most have much lower annual revenues. Many agencies bring in tens or hundreds of thousands annually, depending on their niche and distinctives. It’s not unheard of to achieve millions in annual revenue, though.
An advertising agency can increase its profitability by offering services in addition to traditional marketing. For example, an agency might provide clients with public relations or social media consulting services if either of these are needed.
An advertising agency owner is responsible for managing their agency, finding clients and producing campaigns for clients. On any given day, a business owner might:
Search for leads or follow up with leads on potential new clients
Prepare pitches for prospective clients
Work on campaigns for clients
Present pitches or completed projects to clients in meetings
Manage employees
The work of preparing pitches, designing campaigns and meeting with clients is often done with other business partners or employees. Even after an agency grows, however, business owners usually remain involved in these activities.
In order to successfully run an advertising agency, business owners must have knowledge about advertising. It helps to have a degree in marketing or a related field. Business owners who don’t have a four-year degree in the field should at least consider taking some classes and reading publications on the industry. The American Association of Advertising Agencies offers several training programs. Inc.com has a list of 16 trade publications and high-quality blogs. MarketingProfs, Business Insider and The Knowledge Bank lead the list.
Advertising agencies can grow to be internationally recognized companies that receive accolades and land clients from all over the world. Advertising Age published the estimated 2014 revenues of the world’s five largest advertising agencies:
WPP Group (in London) had an estimated annual revenue of $19 billion
Omnicom Group (in New York) had an estimated annual revenue of $15.3 billion
Publicis Groupe (in Paris) had an estimated annual revenue of $9.6 billion
Interpublic Group (in New York) had an estimated annual revenue of $7.5 billion
Dentsu (in Tokyo) had an estimated annual revenue of $6.0 billion
In many cases, agencies are able to become national or multinational businesses with offices in just one or a few cities because they offer services rather than physical products.
While it may be tempting to take on any clients who offer work when first starting out, it’s important to remain selective about what clients an agency takes on. Phyllis Dealy, who started her own agency, explains that it’s important to remain true to an agency’s vision by only taking on clients who fit within that vision.
An advertising agency should hire a few employees as quickly as possible, but it’s important to resist growing beyond the initial team too quickly. Agencies should first have at least one creative person, someone with a business mind and a person who can manage the daily tasks of making a business run. Dealy stresses the importance of a behind-the-scenes person who can take care of billing, operations, staff issues and similar tasks so that the creative person can focus on planning campaigns. After these people have been hired, Dealy says, additional creative people should be slowly brought on as needed.
Business Evaluation & Strategy Tool
We'll walk you through the four pillars every business needs: Points of Leverage, Marketing Strategy, Financial Model, and Personal Compatibility. At the end you'll see a personalized report and your action plan below will be tailored to your answers.
Every viable business has natural advantages. Below are common leverage points across four categories. Pick the ones that apply to your Ad Agency business. We've pre-suggested a few based on your idea — review and adjust.
Without a way to connect with customers, even great businesses fail. Pick the channels you plan to use to reach your customers.
Enter your monthly baseline costs — the minimum overhead to keep the business running. Then we'll calculate how many sales per month you need to break even.
A business that doesn't fit your life will fail no matter how good the numbers look. Tell us how this business fits you.
Complete the four pillars and your personalized summary will appear here.
Nine concrete steps to take you from idea to open business, grouped into 30-day phases. Complete the planner above and we'll highlight what's most important for your situation.
An LLC keeps your personal assets separate from business debts and lawsuits — the most common reason small business owners choose this structure. Sole proprietorships and partnerships do not provide this protection.
Apply for your free Employer Identification Number through the IRS, then register for any state or local taxes that apply to your business (sales tax, franchise tax).
A dedicated business account is required to maintain personal asset protection. Mixing personal and business finances ('piercing the corporate veil') can void your LLC's liability shield.
Recording expenses and income from day one makes tax filing easier and lets you see when the business is actually profitable. Use software (QuickBooks, Wave) or a part-time bookkeeper.
State and local requirements vary widely. Brick-and-mortar businesses typically need a Certificate of Occupancy; service businesses may need specific professional licensing; food businesses need health permits.
General Liability Insurance is the most common starting point. If you'll have employees, most states require Workers' Compensation. Specific industries need additional coverage (product liability, professional liability, etc.).
Your brand is how customers perceive and remember you. A clear name, logo, and visual identity make every later marketing decision easier and protect you legally as you grow.
Every legitimate business needs a website. Social media pages are not a substitute — you don't own the platform. Modern website builders mean you can launch a clean site in a weekend without a developer.
A dedicated business number keeps your personal life private, makes the business look legitimate, and lets you route calls professionally. Cloud phone services start under $20/month.