How to Advertise on Google Ads for Businesses: A Step-by-Step Guide

Google advertising for businesses isn't complicated — it's poorly explained

Most Google Ads guides are written for ecommerce or B2C businesses. When you try to apply those same tips to a B2B company, the results are disappointing: junk leads, burned budget, and the feeling that "Google Ads doesn't work for my industry."

It does work. But the setup is different. This guide walks you step by step from zero to your first functional B2B campaign.

Step 1: Set up your account correctly

Go to ads.google.com and create an account. Two common mistakes to avoid from the start:

Don't use "Smart Campaigns" mode — Google suggests it by default, but it strips away your control. Select "Switch to Expert Mode" before creating anything.
Set billing in MXN if you operate in Mexico. Changing the currency later requires creating a new account.
Link Google Analytics 4 from day one to track real conversions, not just clicks.

Step 2: Research keywords with commercial intent

Open the Google Keyword Planner and search for terms your prospects would use when they're ready to hire — not when they're just researching.

Keyword type	Example	Intent	Priority
Direct service	"B2B digital marketing agency"	Purchase	High
Problem + solution	"how to generate leads for my company"	Consideration	Medium
Informational	"what is B2B marketing"	Research	Low

Focus your initial budget on direct service keywords. These are the ones that generate leads ready to talk to you, not browsers looking for definitions.

If you already have active campaigns, check your CPL benchmarks to see if your costs are within the expected range for your industry.

Step 3: Structure your campaigns by intent

Don't throw everything into one campaign. Create at least three:

Brand campaign — Your name and variations. Lowest CPL, highest conversion.
Service campaign — What you sell. The bulk of your budget goes here.
Problem campaign — What your client is trying to solve. High volume, lower conversion.

Each campaign with its own daily budget. This way you control how much you spend at each level of intent.

Step 4: Write ads that filter

In B2B, a good ad isn't the one with the most clicks — it's the one that attracts the right prospect and repels the wrong one. Include in your copy:

The specific service ("B2B Marketing Consulting," not "Comprehensive Solutions")
An audience qualifier ("For manufacturing companies," "For commercial directors")
A real differentiator ("Measurable ROI," "No long-term contracts")
Direct CTA ("Schedule a free diagnostic," not "Learn about us")

Your Quality Score goes up when the ad is relevant to the search. And a high QS means you pay less per click.

Step 5: Don't send traffic to your homepage

This is the number one mistake. Your homepage isn't designed to convert paid traffic — it's designed to introduce your company.

You need a dedicated landing page with:

A headline that matches the search query
Value proposition in one sentence
Short contact form (name, company, email, phone)
Social proof (client logos, concrete results)

The difference: your homepage converts 1-3% of visits. A well-built landing page converts at 8-15%.

Step 6: Set your budget with logic

You don't need $50,000 MXN per month to get started. But you need enough for the algorithm to learn.

Monthly budget	What you can expect
$5,000 - $10,000 MXN	Proof of concept. 1 campaign, limited data.
$10,000 - $25,000 MXN	Enough data to optimize. 2-3 campaigns.
$25,000 - $50,000 MXN	Real scale. Multiple campaigns + remarketing.
Over $50,000 MXN	Full operation with continuous A/B testing.

If your average B2B ticket is over $100,000 MXN, a monthly budget of $15,000-$25,000 MXN is a reasonable starting point. Check how much to invest based on your growth stage for more context.

Step 7: Launch and don't touch anything for 2 weeks

Yes, seriously. The algorithm needs data to optimize. If you change bids, pause keywords, or modify ads every two days, you'll never get statistically significant data.

Golden rule: wait for at least 100 clicks per ad group before making decisions.

Step 8: Optimize with data, not intuition

After 2-3 weeks with data, review:

Search terms — Add negative keywords to eliminate irrelevant traffic
Ads — Identify which ones have the best CTR and conversion, pause the worst performers
Devices — In B2B, desktop usually converts better than mobile
Schedules — Mon-Fri during business hours typically works better for B2B
CPL by keyword — Identify keywords that generate real leads vs those that only generate clicks

This is where the connection to your CRM becomes critical. Without knowing which leads closed as clients, you're optimizing blindly.

Common mistakes in B2B campaigns

Using broad match without negatives — You end up paying for job searches and Wikipedia definitions.
Landing page = homepage — We already covered this. It doesn't work.
Not tracking conversions — If Google doesn't know what a conversion is, it can't optimize toward it.
Ignoring remarketing — 97% of B2B visitors don't convert on their first visit. Remarketing brings them back.
Comparing with B2C — In B2B, a $150 MXN CPL that generates a $500k contract is a massive return.

The difference between Google Ads and SEO

If you're evaluating SEO vs Google Ads, the short answer: it's not one or the other. Google Ads gives you immediate leads while you build your organic rankings. They're complementary, not substitutes.

At De Marketing, we set up and manage B2B Google Ads campaigns with a direct connection to your CRM to measure real ROI. If you want to launch your first campaign or fix one that isn't working, schedule a diagnostic.