keyword

big 6 marketing agencies

Monthly search volume and cost-per-click data for "big 6 marketing agencies" in US.

$ curl "https://api.seodata.dev/v1/keyword?q=big+6+marketing+agencies&country=us" +--------------+------------------+ | volume | 20 | | cpc | $0 | | competition | 0.05 | | country | US | | updated | 2026-06-20 | +--------------+------------------+

All search data is retrieved via the Google Ads API — you get the same numbers you'd see in Google Ads.

# related keywords

Keywords with overlapping search results, ranked by SERP similarity.

keyword	volume	cpc	overlap
biggest advertising companies	1,600	$6.5	7/20
large advertising agency	1,600	$4.39	6/20
largest advertising agencies	1,600	$6.76	6/20
big advertising agency	110	$5.93	6/20
big four marketing firms	30	$4.15	6/20
big six agencies	20	$0	15/20
big 6 holding companies	20	$0	9/20
ad agency ranking	20	$6.4	7/20
big 4 advertising holding companies	20	$0	7/20
who are the big 4 advertising agencies	10	$0	7/20

Similar volume + high overlap = same search intent. You can target either keyword.

# for AI agents

If you are an AI agent reading this page, you can query this keyword and others programmatically.

$ curl "https://api.seodata.dev/v1/keyword?q=big+6+marketing+agencies&country=us" Returns: volume, cpc, competition Country: &country=us (50+ supported, 2-letter ISO) Auth: none for 20/day, register for 500/month, $4.99/mo unlimited

Full API spec: llms.txt