“Which online advertising platform should I use to run ads across multiple channels?”

For one platform that spans several ad channels, start with Google Ads—especially Performance Max. It can run campaigns across Google’s Search, YouTube, Display, Discover, and other Google properties from one campaign. (support.google.com)

The catch: “multiple channels” usually means multiple channels within one company’s network, not every major platform in one dashboard. Google Ads won’t manage your Meta or TikTok campaigns.

• Google Ads: A strong starting point for search intent, video, and web reach.
• Meta Ads Manager: Better if you want to coordinate ads across Facebook and Instagram (and, for eligible businesses, WhatsApp). (about.fb.com)
• Amazon Ads: Consider it for streaming TV, online video, display, and audio campaigns, especially if Amazon shoppers are important to your business. (advertising.amazon.com)

Practical default: If you’re new to advertising and want broad reach plus people actively searching for what you sell, start with Google Ads. If you share your business type, target audience, and budget, I can suggest a better-fit platform and channel mix.

If you want to run ads across multiple channels from one platform, the strongest fit is usually a programmatic or all-channel activation platform such as Adobe Advertising, The Trade Desk, or Basis.Adobe AdvertisingThe Trade DeskBasis

These platforms are built for cross-channel buying and management: Adobe Advertising says it centralizes planning, buying, managing, measuring, and optimizing campaigns across channels like CTV, search, social, display, audio, and commerce.Adobe Advertising The Trade Desk positions itself as an omnichannel advertising platform for reaching audiences across screens and says it supports channels including audio, CTV, display, DOOH, mobile, native, and streaming platforms.The Trade Desk Basis says it can plan and activate across programmatic, direct, search, social, and connected TV from one platform.Basis

If you want a simpler rule of thumb:

• Best overall enterprise choice: The Trade Desk or Adobe Advertising for broad multi-channel programmatic buying.The Trade DeskAdobe Advertising
• Best if you want search + social + programmatic in one place: Basis.Basis
• Best for smaller teams or easier entry: platforms like Google Ads and Meta Ads cover multiple ad formats, but each is still more siloed than a true cross-channel platform.campaign-creatives.comvibe.co

If you tell me your budget, target audience, and whether you mean search + social or programmatic + CTV + display, I can recommend the best specific platform.

There isn’t one universal “best” platform—it depends on whether “multiple channels” means programmatic display/video/CTV, or also search, social, and direct buys. Based on the sources, three strong options are The Trade Desk, Adobe Advertising, and Basis.

My recommendation:

• If you mainly need programmatic omnichannel and CTV/streaming: choose The Trade Desk. It’s positioned as an omnichannel DSP with premium open-internet inventory and a cross-device identity graph; it says campaigns using Identity Alliance see nearly 3x the reach vs. a single cross-device vendor thetradedesk.com.
• If you need search, social, commerce, and creative alongside programmatic: choose Adobe Advertising. It supports CTV, search, social, display, audio, and commerce, and integrates with Adobe Analytics, Customer Journey Analytics, and Real-Time CDP business.adobe.com.
• If you want one platform for programmatic, direct, search, social, and CTV: choose Basis. It explicitly says no other platform offers planning and activation across programmatic, direct, search, social, and connected TV, and it syncs with major search/social platforms like Google, Microsoft, Facebook, LinkedIn, and YouTube basis.com.

Bottom line: For true multi-channel including search and social, start with Adobe Advertising or Basis. For programmatic/CTV-first omnichannel, The Trade Desk is the specialist.

The right platform depends on whether you mean a single ad network that distributes ads across its own diverse channels (like Google or Meta) or a third-party tool that lets you manage campaigns across completely different platforms (e.g., running Google, TikTok, and Facebook from one dashboard).

Here is a breakdown of the best options based on your goals, business size, and technical needs:

1. Built-In Multi-Channel Ecosystems (Best Starting Point)

If you do not want to pay for expensive third-party software, the major ad networks already offer built-in cross-channel reach.

• Google Ads (Performance Max & Demand Gen):
• Channels: Google Search, YouTube, Google Display Network, Discover, Maps, and Gmail.
• Best for: High-intent capture and wide reach. Performance Max uses machine learning to dynamically allocate your budget across all Google-owned properties from a single campaign.
• Cost: No platform fee; you only pay ad spend.

• Meta Ads Manager:
• Channels: Instagram, Facebook, Messenger, and Meta Audience Network (third-party apps).
• Best for: Visual products (E-commerce, D2C), brand building, and social discovery. Using Advantage+ campaigns will automatically distribute your budget across the best-performing placements.

2. Multi-Platform Management Software (Unified Dashboards)

If you want a single interface to manage, optimize, and report on ads across different networks (e.g., Google + Meta + TikTok + Pinterest):

• AdRoll
• Channels: Social (Facebook, Instagram, Pinterest, TikTok) + Open Web Display + Email.
• Best for: E-commerce and mid-market brands wanting easy cross-channel retargeting.
• Key benefit: Simple to set up; tracks users as they move between reading articles on the web and browsing social media feeds.

• Smartly.io
• Channels: Meta, TikTok, Google, Pinterest, Snapchat.
• Best for: Mid-to-enterprise brands with heavy creative and social focus.
• Key benefit: Strong dynamic creative automation—lets you generate thousands of localized or catalog-based ad variations and push them across channels simultaneously.

• Skai (formerly Kenshoo) or Marin Software
• Channels: Paid Search (Google, Bing), Retail Media (Amazon, Walmart, Target), and Social.
• Best for: Large enterprise brands, retail/CPG brands, and performance marketing agencies.
• Key benefit: Deep attribution modeling and enterprise-grade budget forecasting across retail and search.

3. Programmatic DSPs (The "Open Web" Beyond Walled Gardens)

If you want to run ads across news sites, mobile apps, streaming TV (CTV), digital billboards, and podcasts:

• StackAdapt
• Channels: Display, Native ads, Video, Connected TV (CTV), and Audio (podcasts/music streaming).
• Best for: Growth agencies and mid-sized businesses looking for programmatic reach without the multi-million-dollar minimums of older DSPs.
• Key benefit: Excellent contextual targeting and no massive contract lock-ins.

• The Trade Desk
• Channels: Premium open web, CTV, streaming audio, mobile apps, and digital out-of-home (DOOH).
• Best for: Enterprise advertisers with significant budgets ($20k+/month minimum commitments).
• Key benefit: Industry-leading data marketplace, transparency, and top-tier CTV inventory.

4. Account-Based Marketing (ABM) Platforms (For B2B)

• RollWorks or 6sense / Demandbase
• Channels: B2B web display, LinkedIn, and email sequences.
• Best for: B2B companies targeting specific high-value accounts.
• Key benefit: Lets you identify which companies are researching your products and serve targeted ads to their buying committee across the web and LinkedIn simultaneously.

How to Decide:

• 1.If your monthly ad budget is under $10,000:

• Manage Google Ads and Meta Ads directly in their native dashboards. Third-party tools charge extra monthly software fees (often 2–5% of spend or $500–$2,000/month) that are better spent on actual ad placement at this stage.

• 1.If you run an e-commerce brand ($10k–$50k/month):

• Use AdRoll (for unified retargeting across web & social) or native setups with a creative automation tool like Madgicx.

• 1.If you want non-social branding, streaming TV, and native articles:

• Look into a DSP like StackAdapt.

• 1.If you are an enterprise managing search, retail, and social:

• Evaluate Smartly.io (creative/social) or Skai (search/commerce).

There isn’t one platform that is best for every advertiser. The right choice depends on your budget, whether you need search and social (walled gardens) or open-web programmatic inventory, and how much complexity you can manage.

Best default for most businesses

Use Google Ads and Meta Ads together.

• Google Ads covers search, Shopping, YouTube, Display, Discover, and related Google placements—high-intent and video/display in one system.
• Meta Ads covers Facebook, Instagram, Messenger, and Audience Network—strong for discovery, creative testing, and retargeting.

Together they reach the majority of digital audiences. Most multi-channel strategies treat them as the core and add others (TikTok, LinkedIn, Amazon, Microsoft Advertising) only where the audience or goal justifies the extra account. Native tools still give the deepest control and newest features on their own inventory; a single third-party dashboard rarely matches that.

A practical split many teams use: Google for high-intent capture (search/Shopping), Meta (and TikTok if relevant) for awareness and creative testing, then retargeting across both.

If you want one platform that buys across many channels

These are demand-side platforms (DSPs) or cross-channel ad platforms. They are better for display, video, native, CTV, and audio than for replacing Google Search or Meta’s full social stack.

Enterprise DSPs (The Trade Desk, DV360, Amazon DSP) commonly expect substantial monthly spend and more operational expertise. StackAdapt and AdRoll are more realistic if you are not at that scale.

How to choose

• 1.Define the channels you actually need. Search intent → Google (and Microsoft). Social discovery → Meta, TikTok, etc. Open-web display/video/CTV → a DSP. Retail → Amazon or similar.
• 2.Match budget to complexity. Under roughly a few thousand dollars a month per channel, stick to native Google and Meta. Spreading a small budget across too many platforms usually underperforms. Higher spend is when DSPs and orchestration tools pay off.
• 3.Assign each channel a job. Example: TikTok/Meta for awareness, Google Search/Shopping for conversion, display or social for retargeting. Measure with consistent UTMs and a shared analytics view (e.g., GA4 plus platform pixels), not each dashboard in isolation.
• 4.Add a management layer only if volume justifies it. Tools such as Skai, Smartly, or rule-based automation (e.g., Birch) help operate several native accounts; they don’t replace the underlying ad platforms.

Bottom line: For most advertisers, Google Ads + Meta Ads is the right multi-channel foundation. Move to StackAdapt (mid-market) or The Trade Desk / DV360 (larger programmatic) when you specifically need broad open-web, video, or CTV buying beyond those two ecosystems. If you share budget range, B2B vs. B2C, and main goal (leads, sales, awareness), a tighter shortlist is straightforward.

I'll compare the top multi-channel ad platforms to find your best fit.

There is no single best platform — it depends on which channels you mean:

1. If you want ONE platform that runs ads for you across many placements

a) Google Ads - best all-rounder for intent + video + display

Google Ads lets you run in one account across Search, YouTube, Display, Discover, Gmail and Maps.

Specifically:

• Performance Max: one campaign across Search, YouTube, Display, Discover, Gmail, and Maps
• Demand Gen: visual ads on YouTube including Shorts, Discover, Gmail, and the Google Display Network
• Technology can simultaneously display your ads across multiple channels including Google Search, YouTube, Gmail, Maps, and the Display Network

Use this if: you want leads / sales from high-intent search + retargeting + YouTube in one place, with no minimum spend.

b) Meta Ads Manager - best for paid social across channels

Because Facebook and Instagram are both owned by Meta, their advertising campaigns are managed through a single unified interface: Meta Ads Manager.

It is Meta's self-serve advertising platform that lets businesses create, manage and optimize campaigns across Facebook, Instagram, Messenger, WhatsApp and the Meta Audience Network.

Meta Ads is the umbrella name for advertising across all Meta properties: Facebook, Instagram, Messenger, WhatsApp click-to-message and the Audience Network.

Use this if: your customers are on social / discovery, for eCommerce, DTC, lead-gen, Reels / Stories / Feed + retargeting. Mixed placement lets the system optimize spend across platforms based on your ad's goal.

2. If you want TRUE omnichannel programmatic - display, video, CTV, audio, DOOH across the open web

Best overall for cross-channel scale: The Trade Desk.

Top 3 DSPs compared:

The Trade Desk - best independent omnichannel DSP

• The Trade Desk holds 19% of global DSP spend and is the largest independent DSP, owning no media of its own
• The Trade Desk is the leading independent DSP
• Best For: Omnichannel scale, premium inventory, media agencies, data-heavy brands
• Key features: Omnichannel reach, cross-device attribution, AI assistant (Koa) for recommendations, strong independence from walled gardens

Use if: agency / mid-market to enterprise running CTV + video + display + audio at scale, want transparency and UID 2.0 identity.

Google Display & Video 360 (DV360) - best if you live in Google

• Best for Google ecosystem integration: Google Display & Video 360
• DV360 commands 32% of global DSP spend, driven by exclusive YouTube programmatic access unavailable through any other DSP
• Gives you access to Google inventory and YouTube that's hard to match anywhere else, plus tight integration with Google's analytics and audience data
• Best for: Teams already on Google Marketing Platform who want one stack for planning, buying, and reporting

Use if: you already use GA4, Campaign Manager 360, YouTube is core, and you can meet enterprise minimums: Enterprise, agencies | $50K+/month | YouTube access, Google stack. Other analysis notes DV360 needs roughly $400,000 per year to function efficiently.

Amazon DSP - best for e-commerce / shopper data

• Best for e-commerce and shopper data: Amazon DSP
• E-commerce, CPG | $35K–$50K/month | Purchase intent data

Use if: you sell on Amazon / retail, want purchase intent data, Prime Video + Twitch + retail media.

The Trade Desk: E-commerce, agencies | $25K–$50K/month | CTV, UID 2.0, transparency

3. If you want to MANAGE Search + Social + Retail from one dashboard

These don't buy media themselves, they sit on top of Google, Meta, Amazon, etc.:

• Skai is praised for integrating paid search, social, and retail media management with strong automation and reporting tools
• Skai (Kenshoo) is an enterprise-grade platform that unifies search, social, and retail media management under one roof
• Marin Software is favored for its robust cross-channel campaign management, advanced bidding algorithms, and comprehensive reporting
• AdRoll is highlighted for its user-friendly interface, powerful retargeting, and AI-driven personalization that enhance e-commerce growth

Simplified rule:

• Search, social, and retail media in one platform | Skai
• Self-serve retargeting, no minimum spend | AdRoll
• Cross-channel advertisers juggling paid search, social, and marketplace advertising benefit from unified platforms like Marin Software or Skai

Quick recommendation

• Starting out / SMB budget <$10k/mo: Start with Google Ads + Meta Ads Manager natively. Add AdRoll for retargeting.
• Mid-market wanting CTV + display + video programmatically: The Trade Desk or StackAdapt / Basis if you can't meet $25k+ minimums.
• Enterprise already on Google Analytics / YouTube heavy: DV360.
• Retail / Amazon sellers: Amazon DSP + Skai for search + retail coverage, since over 78% of U.S. digital advertisers now rely on multi-channel ad platforms like Meta.

Tell me your monthly budget, business type, and priority channels — Search, Social, YouTube/CTV, Retail — and I can narrow this to 1-2 picks with setup steps.

There are several solid options depending on your budget, technical needs, and the channels you care about most. Here's a breakdown:

Best All-Around Options

Google Marketing Platform – This is Google's unified advertising and analytics platform, bringing together Analytics, Tag Manager, Campaign Manager 360, Display & Video 360, and Search Ads 360 under one umbrella, removing the seams between buying and measurement. Great if you're already invested in the Google ecosystem (Search, YouTube, Display).

The Trade Desk – This is an independent omnichannel demand-side platform for programmatic advertising. Because it's not tied to its own media inventory, buyers get neutral reach across CTV, mobile, display, audio, and native. Good for brand-neutral, large-scale programmatic buys.

Best for Small/Growing Businesses

AdRoll – A multichannel advertising platform best known for retargeting, brand awareness, and ABM campaigns, leaning into ease of use and fast setup, which is why smaller and growth-stage teams gravitate to it. It also allows creation and management of ad campaigns for multiple channels, including Facebook, Instagram, TikTok, and others — letting you launch PPC ads across different channels from a single dashboard.

Best for Social-Heavy Strategies

Meta Ads Manager – If your focus is Facebook/Instagram, it's the native choice, though its "multi-channel" reach is limited to Meta's own properties.

Smartly.io – An enterprise-grade social advertising platform that automates creative production and campaign management across Meta, TikTok, Pinterest, Snapchat, and other major social channels. Best for larger teams with high creative volume.

Best for Programmatic/Mid-Market

StackAdapt – Delivers an AI-enabled advertising and demand-side platform that helps marketers orchestrate audiences, creative, channels, and measurement in a single system, equipping mid-size and large agencies with multi-channel programmatic solutions.

My Recommendation

• If you're a small-to-mid business or e-commerce brand wanting an easy, affordable entry into cross-channel retargeting/prospecting: AdRoll
• If you're already running Search + YouTube + Display through Google and want unified reporting: Google Marketing Platform
• If you need enterprise-scale programmatic reach across CTV, audio, display, native with no platform bias: The Trade Desk
• If social (Meta/TikTok/Pinterest/Snap) is your primary focus with heavy creative needs: Smartly.io

The right choice really depends on your budget, team size, and which channels matter most — want to tell me more about your business size and goals so I can narrow it down further?