Drawing on 2,000+ verified client reviews and assessments from 12 industry experts, our directory of top advertising agencies in the United States is a reliable source for comparing candidates with confidence.

Our Verified Agencies
are Trusted by Top Brands:
  • Nestle
  • Amazon
  • Mercedes Benz
  • Apple
  • Henkel
United States × Agriculture × $50,000 & Up × Clear Filters
  • Bold Ideas. Unconventional Impact.

    At Celtic, we challenge the ordinary, disrupt expectations, and craft unforgettable marketing strategies. With over 30 years of expertise in B2B industries like agriculture, chemistry, food, manufacturing, and pet, we turn bold ideas into tangible success...

    Top Services:

    • Advertising
    • Digital Marketing
    • Creative Services
    • Content Marketing
    • Digital Services
    • Show more
    Location
    Park Ridge, Illinois
    Number of Employees
    Under 49
    Average Hourly Rate
    $175/hr
    Minimal Budget
    $50,000 & Up
    Portfolios Count
    4 Projects Listed

    Celtic Chicago Services

    • Advertising
    • Digital Marketing
    • Creative Services
    • Content Marketing
    • Digital Services
    • Branding
    • Web Design
    • Media Buying
    • SEO
    • Social Media Marketing
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Central Garden & Pet
    • Central Life Sciences
    • Daubert Chemical
    • US Tsubaki
    • TH Foods
    • Chicago Advertising Federation
    • Stepan
    • Ardent Mills
    • Tyson
    • Honeyville
    Data sourced from the agency's DesignRush profile
  • Your Enduring Partner in Advertising Excellence

    Lessing-Flynn, an advertising agency founded in 1907, boasts a legacy of resilience and evolution in Des Moines, Iowa. Over the years, it has navigated the dynamic industry shifts, continuously adapting to emerging trends and client needs. With a steadfast commitment to excellence and creativity...

    Location
    Des Moines, Iowa
    Number of Employees
    Under 49
    Average Hourly Rate
    $160/hr
    Minimal Budget
    $50,000 & Up
    • Conterra Ag Capital
    • Coalition to Support Iowa's Farmers
    • Hitachi Construction Machinery Americas Inc.
    • IMT Insurance
    Data sourced from the agency's DesignRush profile

    Lessing-Flynn Reviews & Testimonials

    • Janae Brown
      Janae Brown Review from Google
      5.0

      Janae Brown's Review Sourced from Google

      Lessing Flynn has been DCI Group, Inc.'s trusted marketing partner for several years now, and they consistently deliver exceptional results. From promoting our brand to supporting our 10-year anniversary celebrations, holiday gifts, and advertisements, their expertise has been instrumental in our success. Lessing Flynn's commitment to understanding our brand and target audience is unparalleled. They have continuously provided innovative ideas and strategies that have effectively engaged our customers. Their attention to detail and creativity shine through in every campaign they develop for us. What sets Lessing Flynn apart is their dedication to building long-term relationships. They have consistently gone above and beyond to ensure our satisfaction and actively involve us in the marketing process. Their prompt communication and transparent approach make working with them a breeze. We are grateful for Lessing Flynn's ongoing partnership and highly recommend them to any company in need of a reliable and results-driven marketing agency. Their professionalism, creativity, and commitment to our success have made them an invaluable asset to our business. Thank you, Lessing Flynn, for your unwavering support and exceptional work. We look forward to continuing our successful collaboration for many more years to come!

    • Jeremy Jones
      Jeremy Jones Review from Google
      5.0

      Jeremy Jones's Review Sourced from Google

      Lessing-Flynn is not only the oldest advertising agency this side of the Mississippi, it’s the best! Great people and outstanding work.

    • Ellen Weiss
      Ellen Weiss Review from Google
      5.0

      Ellen Weiss's Review Sourced from Google

      So creative! So strategic! So fun! Lessing-Flynn truly lives by their motto - “ALL IN”. They’re all in on their people and all in on their clients. They’re humble, full of hustle and hungry to do more.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews

Advertising Agency FAQs

What services do the best advertising agencies in the United States provide?

Leading advertising agencies in the United States plan, create, and launch compelling advertising campaigns across digital and traditional media channels to amplify businesses’ brand awareness, customer engagement, digital presence, and sales.  

According to our market analysis, the most prominent service offerings for online advertising companies in the US include: 

  • Media planning and buying is the largest revenue-generating segment for agencies, representing approximately 40% of industry revenue in the traditional advertising services sector. 
  • Creative services comprise another core offering of traditional agencies, accounting for approximately 35% of their revenue. 
  • Search advertising, including SEO and SEM, remains the single largest service offering within digital advertising, capturing over 24.1% of the total market share. 
  • Social media advertising is a major and rapidly growing segment, with ad spending in the US social media advertising market expected to reach $95.70 billion in 2025. 

How much do these services typically cost?

Advertising costs in the US start from $900 for digital campaigns and can go as high as $100,000 for TV ads. The pricing depends on the region, platform, campaign, reach, targeting, creative quality, and the channel.

Overall, the estimates present a stark contrast between the high, fixed expense of traditional television and the flexible options in digital media

Type of media channel  Platform / campaign type  Cost
Traditional  Television ads (local production)  Start at ~$1,000 
Traditional  Television ads (national campaigns)  Up to $8 million (average 30-second national ad costs around $350,000
Digital  Facebook campaigns $2,500 – $9,000 per month 
Digital  LinkedIn campaigns  $2,000 – $4,000 per month 
Digital  Instagram campaigns  $1,000 – $1,600 per month 
Digital  X (formerly Twitter) campaigns  $900 – $1,600 per month 
Digital  Google Ads (banner ads)  $1 – $3 per click (CPC) or $2 – $5 per thousand impressions (CPM) 
Digital  Programmatic ads  Generally start around $2 per thousand impressions (CPM) 

When can clients expect ROI from advertising?

The expected time to realize a return on investment (ROI) from advertising depends on the specific channel: 

  • Paid ads (Google, Meta, LinkedIn) can generate visible results within days/weeks, with lead flow increasing immediately as the campaign begins. 
  • Email campaigns and remarketing re-engage warm audiences and existing contacts for early conversions and quick ROI. 
  • Content marketing and SEO begin driving consistent traffic, organic leads, and compounding ROI in the 6-12-month range. 
  • Thought leadership promotion (blogs, webinars, YouTube videos) builds brand authority and returns value within six months to a year. 

What are the typical timelines for advertising projects from initial planning to launch complexity levels?

Approximate timeframes for advertising projects are: 

  • Smaller campaigns usually take 4 to 8 weeks from the discovery meeting to launch. 
  • More complex campaigns that require deeper audience research, new creative asset development, and multiple platform configurations can stretch further because each stage adds time: 
    • Kick-off and alignment (1-2 weeks) 
    • Audience research (2-3 weeks) 
    • Creative development (2-4 weeks) 
    • Platform setup (3-4 weeks) 
    • Testing and launch (4-6 weeks) 

How often do the advertising firms update targeting data and creative assets once a campaign is live?

Depending on the platform, top ad agencies typically update creatives every 2-6 weeks, while targeting and bid/keyword adjustments are often reviewed weekly

Here’s how often other ads are typically updates once a campaign is live: 

  • For search campaigns, the best practice is to refresh ad copy every 4-6 weeks, while bids, keywords, and extensions are reviewed weekly
  • For social media ads, rotating creative every 2-4 weeks is recommended to avoid “ad fatigue,” especially when audience size or ad frequency is high. 
  • For display or video campaigns (YouTube or banner/display ads), monthly updates of visuals or placements are recommended.  

Generally, updates are prompted by creative fatigue or targeting inefficiencies, i.e., when click-through rates drop, cost per acquisition rises, or conversion rates fall. 

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