We maximize the return on your ads
SEM Agency





OUR SERVICES
We analyze and optimize your PPC campaigns
Boost your business with SEM campaigns that generate real results.
Access a personalized SEM audit, a multi-channel strategy tailored to your goals, and a consultation with highly qualified paid traffic experts.
Discover how to increase your revenue and attract more potential customers while optimizing your costs. With our data-driven approach and strategic optimizations, we design digital advertising campaigns that maximize your return on investment.
SEM Audit
Campaign analysis
Landing Page Analysis
Identifying areas of opportunity
Competitor benchmark
SEM Strategy
Setting goals
Campaign setup
Keyword Research
Audience creation
Measuring objectives
Hearings
Cold Traffic
Moderate Traffic
Hot Traffic or Remarketing
Branding Approach
Performance Approach
Lead or sales approach
Optimization
A/B testing
Campaign monitoring
Results reports
Landing Page Improvements
After-sales process recommendations
Creativities
Creation of highly attractive visual assets
Writing conversion-focused copy
Call to action for each stage of the funnel
Why is BIGSEO your specialized SEM agency?

Proven advertising strategies, designed for your business
Our in-depth analysis identifies the most profitable platforms for your goals: Google Ads, Bing Ads, Meta (Instagram, Facebook), X Ads, Amazon Advertising, LinkedIn Ads, and TikTok Ads, among others.
We boost your profits by optimizing CPA and maximizing conversions. We constantly measure results and adjust strategies to keep you competitive in an ever-changing environment.
Connect with your ideal customers and make it easy for them to find you
We put your business in front of the right people, specializing in identifying your target audience and creating meaningful connections.
How do we do it?
Through exhaustive research, we design highly targeted SEM campaigns that deliver fast results, always adapting to your resources and objectives. We are committed to driving the success of your business with effective and measurable strategies.


We attract traffic that converts into real customers
Our strategies are designed to attract people who are genuinely interested in your product or service, maximizing results at the lowest possible cost.
With a focus on optimizing ROI, we ensure that every visitor with business potential becomes a real opportunity.
This is possible thanks to detailed analytical monitoring, which allows us to continuously adjust and improve your campaigns and landing pages to ensure effective and sustainable results.
Your business in the hands of a certified Google Partner Agency
As a Google Partner, we have direct access to Google account managers, which allows us to stay up to date with the latest Google Ads developments.
In addition, we enjoy priority access to new features, ensuring that your campaigns take advantage of all the most advanced tools on the market to maximize your results.

What happens when we manage your SEM campaigns?
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Free SEM Consulting
We evaluate the client’s current situation and their needs in SEM campaigns. This analysis allows us to understand the client’s objectives and priorities.
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Kick Off Meeting
We introduce the team and assign roles. We define objectives, KPIs, and a calendar of key milestones, as well as discussing segmentation and technical plans. We gather strategic information about buyer personas and products.
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Initial research and market analysis
We conduct keyword and competitor analysis. We study competitors’ bidding and segmentation strategies to identify opportunities. We create an initial keyword and segmentation strategy.
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Account audit and technical configuration
We review previous campaigns and optimize technical settings (pixels, tracking, UTM). We set up the campaign structure and improve the website experience.
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Presentation of the strategy
We present the SEM strategy based on analysis. We include campaign structure, keywords, and target audiences. We clarify any questions to align the proposal with the client’s objectives.
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Setup of campaigns and ads
We structure campaigns by product or audience, creating relevant and dynamic ads. We implement smart bidding strategies to maximize results.
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Campaign launch
We launch campaigns on selected platforms, monitoring initial performance. We make quick adjustments to optimize performance based on early data.
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Continuous monitoring and optimization
We review data to adjust keywords, ads, and bids. We implement constant optimizations to improve conversions and reduce CPA.
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Reports and strategic adjustment
We produce detailed reports with key metrics such as CPC, CTR, CPA, and ROAS. The data allows us to adjust the strategy precisely and effectively.
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Monthly Meetings
We analyze monthly results, proposing new strategies and phases. We evaluate opportunities to scale campaigns to new markets or verticals.
The SEM agency that truly understands your business
We do not believe in generic strategies or prefabricated solutions that only waste resources.
We are committed to understanding your business thoroughly, adopting your goals and concerns as if they were our own.
With extensive experience in Paid Media, we design comprehensive strategies that generate sustainable benefits for your project. We address every stage of the user’s purchasing process to maximize results and ensure long-term success.
How can you ensure that my future campaigns will be more effective?
We analyze your current campaigns and optimize your strategy so that you get a higher return on investment.
I have no experience in SEM. How can you help me?
We take care of the entire process, from planning to executing your campaigns to get the results you want.
How can you help me reduce my customer acquisition costs?
We optimize your campaigns by focusing on the keywords and audiences that deliver the best results at the lowest possible cost.
My competitors appear higher in search ads. How can you help me surpass them?
We analyze the strategies and keywords your competitors are using, optimize bids, and design ads that are highly relevant to your target audience.
I feel like I'm not making the most of my advertising budget. Can you help me optimize it?
Sure, we'll review your budget and redistribute it to focus on the most profitable campaigns and channels.
What can you do to increase my conversions?
We refine your audience segmentation, improve ad content, and optimize landing pages so that users take the actions you expect.
Can I leave the entire management of my campaigns in your hands?
Of course, we take care of everything. We continuously monitor and adjust your campaigns to get the best performance, while you focus on other areas of your business.
I receive many leads, but few are of high quality. How can you improve this?
We adjust the segmentation and work with more specific keywords to attract an audience that is truly relevant and more likely to become customers.
We have worked with



OUR METHOD
Customized SEM strategies to maximize your results
We know that paid advertising can quickly increase traffic to your website, but without a well-defined strategy, that traffic does not convert into customers, wasting time and money.
At our agency, we design PPC campaigns based on smart strategies that are tailored to your specific needs. We focus on connecting with your target audience and optimizing resources to achieve effective and sustainable results.
Discover how we do it:
OUR STRENGTH
We impact your audience when it matters most
With PPC ads, we ensure that the right people find your website at the right time. This not only increases qualified traffic, but also maximizes your site’s potential: converting visits into real customers.
Contact us today and discover how we can take your business to the next level with strategies designed to generate immediate and sustainable results.
Media appearances





Passion for Digital Marketing
BIGSEO was created in 2012 by Romuald Fons, who has been recognized by Forbes, Eshow, and Brandea. He is internationally recognized as one of the most influential marketing professionals.
For more than a decade, Romuald Fons has dedicated his expertise to helping companies and entrepreneurs optimize their digital marketing strategies. His leadership has been instrumental in developing the largest Spanish-speaking SEO community in the world, benefiting more than a million people through his social media channels with specialized training in this field.

What questions do you need answered?
We want to help you make an informed and valuable decision. We answer several common questions.
What is the minimum budget required to start an SEM campaign?
The minimum budget for an SEM campaign can vary depending on the industry and competition for keywords. However, in general, we recommend starting with at least $500 to $1,000 per month to ensure meaningful results. As an SEM agency, we help you optimize every dollar to maximize your return on investment, regardless of your starting budget.
Do you offer SEM consulting or training?
Of course! We offer personalized consulting to help you optimize your SEM campaigns. In addition, thanks to our master’s degree in SEM, we can train your team in the fundamentals and advanced strategies so that they can manage campaigns with confidence and achieve the best results.
On which platforms do you advertise my ads?
We focus mainly on Google Ads, Meta Ads, LinkedIn Ads, TikTok Ads, and Microsoft Advertising (Bing Ads). We will be wherever your target audience is.
How will I know if the campaigns are working?
We measure success by reviewing conversions, the cost per new customer, and the return on investment. We also analyze the quality of the traffic coming to your website, not just the quantity, to ensure that your ads are attracting the right people.
How long will it take to see results?
Normally, changes begin to be seen within the first few weeks. However, continuous improvement is key: as we analyze data and adjust the strategy, the results continue to improve over time.
Do you also manage social media campaigns or just search engines? Do you manage my social media profiles?
We can help you with paid social media campaigns, optimizing ads, and targeting the right audiences. However, the organic management of your profiles (such as content creation, interaction with followers, or moderation) is not included in our services. We focus our efforts on advertising so that you get clear and measurable results without having to spend time on the daily administration of your social media.
How much should I invest in my specific case?
The investment depends greatly on your sector, the competition, and your goals. First, we study your situation and make a proposal tailored to your needs and resources.
Is there an initial cost to get campaigns up and running?
Yes, there is a start-up cost that covers initial setup and strategy development. Before we begin, we will provide you with a detailed breakdown so there are no surprises.
How much time or effort will I have to contribute as a client?
We want to make it easy for you. After defining objectives and budget, we take care of the day-to-day. Of course, your opinion is important: occasional feedback helps us refine the strategy and align actions with your vision.
Can you manage campaigns in other countries or in multiple languages?
Of course! We have experience working in different markets and languages. The idea is to tailor the message and strategy to each audience, no matter where in the world they are.
How will you keep me informed about how the campaigns are going?
We will send you clear and easy-to-understand reports, usually on a monthly basis. In addition, if you need more frequent reports or want to discuss something specific, we are available to help you and answer any questions you may have.
Can I view the campaign data myself?
Of course. In fact, you own the advertising platform. We believe in total transparency.
Do I need to work on SEO as well, or is SEM enough?
SEM campaigns tend to deliver faster results, but SEO is the perfect long-term complement. While ads generate immediate traffic, SEO creates a solid foundation that helps your site appear naturally without paying for each click. The combination of both is recommended for a comprehensive strategy.
Which platforms do you manage within your SEM campaigns?
At our SEM agency, we work with the leading advertising platforms to ensure the best performance for your business profile. We can help you with campaigns for:
- Google Ads to attract customers when they are actively searching for your products or services.
- Meta Ads, which includes both Facebook Ads as Instagram Ads, Ideal for brand awareness, conversion, and remarketing campaigns.
- TikTok Ads, the perfect platform if your target audience consumes dynamic and creative content.
Each platform has its own particularities, and we take care of creating customized strategies according to your brand’s objectives.