By Alex Wolk, founder of Insite Advice · Last reviewed: October 27, 2026
Choose the agency that fits your channels, your budget and your tolerance for contracts — in that order. Start with what your business actually needs: for most St. Louis local businesses that is Google search, the map pack and a website that turns visits into calls. Then run three checks on every agency you talk to: who does the work, what it costs in writing, and whether you keep your own accounts if you leave.
This guide walks through each test — the questions to ask, the answers a good agency gives, and what St. Louis agencies actually charge. If you want the short list first, start with the top digital marketing companies in St. Louis I scored this month, then come back here to pressure-test your pick.
First, match the agency to your situation
The best agency for a national brand is the wrong agency for a South City law firm. Start from your situation:
- Local service business or professional practice (law, home services, medical, trades): you need local SEO, Google Ads and a site that converts — depth in those beats breadth. On my scored list, that’s Insite Advice or Digital Strike.
- A brand that wants a traditional full-service ad agency (creative, media and campaigns under one roof): Cannonball.
- A mid-market company tying marketing to revenue and a CRM: Seafoam.
- A consumer or hospitality brand that needs PR alongside digital: Elasticity.
- An enterprise website on DNN, Sitefinity or Umbraco, with marketing attached: SteadyRain.
- A B2B brand that needs repositioning before more spend: Atomicdust.
- A large brand running campaigns and media buying: HLK or Paradowski Creative.
- A B2B firm that wants outbound sales and appointment setting bundled with digital: Abstrakt Marketing Group.
Not sure which row is you? The seven tests below work for every row.
The seven tests
Run every finalist through the same seven tests, in this order. An agency that fails one is telling you something.
1. Start with your channels, not theirs. Ask which channels they would run for you first — and which they would skip. A roofer may need Google Ads and Maps; a B2B manufacturer may need LinkedIn and content. Be wary of an agency that recommends every service it sells before it understands your business.
2. Ask who does the work. Find out which services are handled by employees and which are subcontracted, and who runs your account day to day. Plenty of agencies pitch with senior staff and hand the work to juniors. At a 10-person, owner-led shop the person on the call is usually the person doing the work — ask every agency, including mine, to name yours.
3. Understand the billing. Ad management is billed as a percentage of spend, a flat fee or a retainer — any of the three can be fair, but you should know which, and your ad spend should go directly to Google and Meta from your own account, never through the agency’s. Ask whether pricing is published. Most St. Louis agencies quote after a discovery call; a few, including Insite Advice, put ranges on their website (see the cost section below).
4. Keep the keys. Your ad accounts, Google Analytics, Search Console, Google Business Profile and domain should all be in your name, with the agency added as a manager. If an agency sets these up under its own accounts, leaving later means starting over — and losing your history.
5. Insist on useful reporting. A useful report shows calls, form fills and cost per lead by channel. A report that leads with impressions and reach is hiding the numbers that matter. Ask to see a sample report before you sign, and ask how often it lands.
6. Know the exit. Ask about contract length and what happens to your website, content, accounts and data if you leave. Month-to-month terms with you owning your accounts is the cleanest arrangement; a fixed term can be fine if the exit is spelled out in writing.
7. Be skeptical of guarantees. Nobody can guarantee a #1 ranking, a fixed cost per lead, or a mention in Google’s AI answers. An agency that promises any of the three is telling you what you want to hear. Ask instead what they will report, how often, and what changes if it isn’t working.
What a marketing agency costs in St. Louis
Budget is the question every buyer asks and most agencies won’t answer until a sales call. Here is what I can verify today, from my transparency scorecard of the ten companies on the St. Louis list (checked October 20, 2026):
| Service | Published price (Insite Advice) | What most other St. Louis agencies do |
|---|---|---|
| SEO and local SEO | $1,500–$3,500/mo | Quote after a discovery call |
| Paid ad management | 15% of ad spend, $500/mo minimum | Quote after a discovery call |
| Website project | $2,000–$3,000 for most projects | Quote after a discovery call |
Large brand and creative agencies in this market generally work on project or retainer budgets well above small-business levels. “Not published” doesn’t mean an agency is hiding something — quoting after a call is the industry norm. It does mean you can’t compare costs until you’ve taken the calls, which is why test 3 (understand the billing) comes before you sign anything. Full published pricing for Insite Advice is on the services page.
Questions to ask on the first call
Print this list. A good agency answers all ten without hedging:
- Who will run my account day to day — and can I meet them?
- Which channels would you run for me first, and which would you skip?
- Is my ad spend paid directly to Google and Meta from my own accounts?
- What does your monthly report show? Can I see a sample?
- What contract length do you require, and what happens to my website, content and accounts if I leave?
- Do you publish pricing? If not, what do clients like me actually pay?
- Which parts of the work are done by your employees, and which by subcontractors?
- Can I talk to a current client in a business like mine?
- How will I know which calls and leads came from marketing?
- What would you do in the first 60 days?
Red flags
Walk away, or at least slow down, if you hear any of these:
- A guaranteed #1 ranking, a guaranteed cost per lead, or a guaranteed spot in AI answers
- Pricing and contract terms that never appear in writing
- The agency owns your ad accounts, analytics or domain “for convenience”
- Reports that lead with impressions and reach instead of calls and leads
- A long contract with no stated exit
- A pitch that covers every service the agency sells, whatever your business actually needs
Frequently asked questions
How much does a marketing agency in St. Louis cost?
Most St. Louis agencies quote after a discovery call, so the honest answer is a range. For a small or mid-size business, published local pricing for SEO and local SEO runs $1,500–$3,500 a month; paid ad management is often billed around 15% of ad spend with a monthly minimum; a website project typically lands between $2,000 and $3,000 at a smaller shop. Large brand and creative agencies work on project or retainer budgets well above those levels. Any agency you shortlist should be able to give you a range in writing before you commit.
Should I hire a full-service agency or a specialist?
Count the channels you actually need. If you need SEO, ads and a website run as one plan, a full-service agency means one team and one report. If you need one channel done deeply — say, only paid search — a specialist can be the sharper tool. The mistake is hiring a specialist for each channel and coordinating them yourself: nobody owns the whole result. See the full-service services hub for what “full-service” should actually cover.
Should I hire a local St. Louis agency or a national one?
If your customers are in the St. Louis metro, a local agency works your map pack, your neighborhoods and your competitors every day, and you can sit across a table from the person running your account. A national firm makes sense for a national campaign. What doesn’t work is a national firm’s templated city landing page with no one local behind it — check that any agency you hire publishes a real St. Louis street address.
How many Google reviews should a marketing agency have?
Read rating, count and recency together. A 5.0 on a handful of reviews says less than a 4.8 on fifty current ones, and reviews that stopped two years ago are a warning sign of their own. For context, Insite Advice sits at 5.0 stars from 39 Google reviews as of October 2026 — mid-pack on count among the agencies on my St. Louis list, which is why the list ranks on published pricing and terms instead of review volume.
How long does it take a new marketing agency to show results?
Paid search and paid social can produce leads within days of launch. SEO and Google Business Profile work compounds over three to six months. Judge a new agency on the leading indicators in the first 60 days — tracking in place, campaigns live, reporting you can read — and on lead trend after that, not on a promised date for a ranking.
The bottom line
Pick by fit, not by size or stars: the right channels for your business, named people doing the work, pricing and terms in writing, your accounts in your name, and an exit you understand. Run the seven tests on every finalist — including us.
If you’re a St. Louis business that wants SEO, ads and your website handled by a small team with published pricing and month-to-month terms, that’s what Insite Advice is built for. Call (314) 621-6888, get in touch, or start with a free SEO audit.
Last reviewed: October 27, 2026.
Corrections: If you represent a listed agency, or you see something inaccurate or out of date, send a correction with a link to a public source and I’ll review it.
By Alex Wolk, founder of Insite Advice (St. Louis, since 2002).