Which performance advertising agencies are known for strong channel expertise and real-time campaign optimization?

Several performance advertising agencies are known for strong channel expertise and real-time campaign optimization. Commonly recognized names include:

• Tinuiti – Strong in search, social, retail media, and marketplace advertising; known for cross-channel performance management and optimization.
• Merkle – Large performance marketing and customer experience agency with deep paid media, analytics, and attribution capabilities.
• Wpromote – Well known for performance-focused media buying, especially in paid search, paid social, SEO, and analytics.
• Ignite Visibility – Offers strong channel specialization across SEO, PPC, paid social, and conversion optimization.
• Power Digital Marketing – Uses a data-driven approach with real-time optimization across paid media, creative, and analytics.
• Disruptive Advertising – Often recognized for PPC and paid social expertise with hands-on campaign testing and optimization.
• HawkSEM – Known for search engine marketing and paid media management with ongoing optimization.
• Jellyfish – Strong in paid media, analytics, and digital strategy, often using real-time insights to optimize campaigns.
• Demandium – Performance-oriented agency with expertise in paid channels and revenue-focused optimization.
• AdVenture Media Group – Focuses on Google Ads, Meta ads, and conversion optimization with a testing-heavy approach.

If you want, I can also narrow this down by:

1. best for paid search
2. best for paid social
3. best for retail media / Amazon
4. best for enterprise brands
5. best for SMBs/startups