GFD Rankings · Firms scored on a public rubric

The best data-study and original research agencies (2026)

  • 7 agencies scored
  • 5 other lists checked
  • 23 sources cited

The 7 data-study and original research agencies, ranked

Green Flag Digital, our firm, is listed first and not scored. The firms after it are in score order.

1

Fractl

73/100

Best for Brands wanting national press from surveys

Why it ranks
Original research is its core product, with 1,100% and 251% traffic results and 4.8 on 37 Clutch reviews, but no public price.
Best for
Brands that want large survey and data-journalism campaigns built for national press pickup.
Not for
Buyers wanting a steady media-relations retainer: it is a campaign and research shop.
Price
Not public, checked Nov 9, 2026. Clutch: $5,000+ minimum project. source
Study proof
Original research studies are the core product; research cited in HBR, NYT, MIT and TIME.
Proof
Recovery Brands: 1,100% organic traffic increase over 36 months; HeliosX: 500+ links and 251% year-on-year SEO traffic (self-reported).
Reviews
Clutch: 4.8 from 37 reviews, checked Nov 9, 2026
Clients it names
McAfee, Payless Power, Porch, Recovery Brands, Paychex, Indeed, Adobe, Discover
Facts
Delray Beach, FL · Founded 2012 · Team: 50-249
Relationship
No paid placement and no traded link.
Also ranked by
MADX Digital (3 (Best for Data-Led Digital PR Campaigns)), Alex Birkett (5), Reboot Online (3)

Score, part by part

  • Proof18/25
  • Buyer fit15/20
  • Reviews14/15
  • Depth15/15
  • Transparency7/15
  • Activity4/10

Sources frac.tl · clutch.co · madx.digital · alexbirkett.com · rebootonline.com

2

Siege Media

68/100

Best for Brands wanting data content that earns links

Why it ranks
Zendesk 10,675+ links and 4.9 on 48 Clutch reviews, but studies are one part of a broader content and PR menu and price is not on its site.
Best for
Brands that want data-driven content and digital PR that earns links and AI citations.
Not for
Small budgets: lists put programs at $8,000 to $25,000+ a month.
Price
Content from $8,000/mo; digital PR about $12,000-$15,000/mo (Ten Speed list) source
Study proof
Reports 958 organic links for Instacart and 10,675+ for Zendesk on its site.
Proof
Zendesk: 10,675+ links and 98% LLM visibility; The Zebra: 1,580+ organic links.
Reviews
Clutch: 4.9 from 48 reviews, checked Nov 9, 2026
Clients it names
Instacart, Zendesk, Zapier, The Zebra, PayPal
Facts
Austin, TX · Founded 2012 · Team: 50-249
Relationship
Siege Media names Green Flag Digital on its own list "12 Best Link Building Services" (#3 of 12, Apr 30, 2026). That does not change its score. No paid placement and no traded link.
Also ranked by
Ten Speed (2), Web Tonic (4), Directive (3)

Score, part by part

  • Proof19/25
  • Buyer fit11/20
  • Reviews15/15
  • Depth10/15
  • Transparency6/15
  • Activity7/10

Sources siegemedia.com · clutch.co · tenspeed.io · webtonic.io · directiveconsulting.com

3

Column Five Media

59/100

Best for SaaS and AI brands needing reports, toolkits

Why it ranks
Research-driven storytelling for SaaS and AI brands with a public price range and 4.9 on 18 reviews, but proof numbers are thin.
Best for
SaaS and AI brands that want research-driven storytelling, reports and toolkits.
Not for
Small budgets: content system $25,000 to $100,000 a month.
Price
$25,000-$100,000/mo (3-month minimum); brand development from $50,000 source
Study proof
Runs the research-report agency list that names itself #8 of 9.
Proof
Dropbox: brand perception up 19%; Instacart: 115+ assets in two weeks.
Reviews
Clutch: 4.9 from 18 reviews, checked Nov 9, 2026
Clients it names
Instacart, Databricks, Vercel, HubSpot, Dropbox, J.P. Morgan Payments
Facts
Costa Mesa, CA · Founded 2009 · Team: 10-49
Relationship
No paid placement and no traded link.
Also ranked by
Column Five Media (own list) (8 of 9) its own list, Web Tonic (15), Directive (6)

Score, part by part

  • Proof11/25
  • Buyer fit12/20
  • Reviews12/15
  • Depth10/15
  • Transparency10/15
  • Activity4/10

Sources columnfivemedia.com · clutch.co · columnfivemedia.com · webtonic.io · directiveconsulting.com

4

Reboot Online

58/100

Best for UK brands, data-led PR from GBP 3,500

Why it ranks
In-house data team and a public GBP 3,500/mo floor, but only a 3.7 Google rating on 9 reviews and its awards are unconfirmed.
Best for
Brands that want data-led digital PR with a published monthly price and tested SEO and AI experiments.
Not for
Buyers needing a US team or one-off campaigns: retainers only, from GBP 3,500 a month.
Price
Retainers from GBP 3,500/mo source
Study proof
In-house PhD data team; published SEO and AI experiments cited by Rand Fishkin, Cyrus Shepard and Neil Patel. Ranks itself #1 on its own data-marketing list.
Proof
TUI: #1 for 'best family holiday provider' in AI search; Liquidation Centre: +92% GA4-tracked leads year on year.
Reviews
DesignRush: Google 3.7 from 9 reviews, checked Nov 9, 2026. No Clutch profile found.
Clients it names
TUI, 2k, AIPRM, Resume.io, BrokerChooser, Numan, GIGAcalculator
Facts
London, UK · Founded 2012 · Team: 50-99
Relationship
No paid placement and no traded link.
Also ranked by
Reboot Online (own list) (1) its own list, Soton Tab (UK digital PR list) (3)

Score, part by part

  • Proof14/25
  • Buyer fit11/20
  • Reviews5/15
  • Depth12/15
  • Transparency10/15
  • Activity6/10

Sources rebootonline.com · rebootonline.com · rebootonline.com · sotontab.co.uk · designrush.com

5

MADX Digital

53/100

Best for SaaS brands wanting PR and SEO case studies

Why it ranks
Clear SaaS case studies and 4.9 on 14 reviews, but it is not a research specialist.
Best for
SaaS brands that want SEO, digital PR and AI-search visibility with public case studies.
Not for
Non-SaaS buyers: it works with SaaS brands (50+).
Price
Clutch: SEO packages from $2,500/mo source
Study proof
Publishes SaaS case studies with GA4 numbers; its digital PR page ranks 10 agencies and does not include itself.
Proof
Hola Prime: organic MQLs 416 to 6,892 a month; Key ESG: 65 to 5,464 organic visits a month.
Reviews
Clutch: 4.9 from 14 reviews, checked Nov 9, 2026
Clients it names
MoonPay, Veed.io, Postalytics, Parcel Tracker, Nosto, Seqera, Orderful
Facts
London, UK · 2020 or 2021 · Team: 10-49
Relationship
MADX Digital names Green Flag Digital on its own list "10 Best Digital PR Agencies" (#5, Sep 21, 2026). That does not change its score. No paid placement and no traded link.

Score, part by part

  • Proof17/25
  • Buyer fit8/20
  • Reviews9/15
  • Depth6/15
  • Transparency7/15
  • Activity6/10

Sources madx.digital · clutch.co · madx.digital

6

Mantis Research

44/100

Best for B2B marketers designing their own surveys

Why it ranks
Survey research is its core with a named founder and a stated $15k floor, but it has no numbered results and no reviews.
Best for
B2B marketing teams that want to design and publish survey-based research with editorial rigor.
Not for
Buyers wanting a large team or a full link and PR program: the site shows one named lead and four research services.
Price
Research projects from USD 15,000; retainers from USD 8,000/mo (Web Tonic list) source
Study proof
Specialist in survey research for content; founder previously built the editorial team at Content Marketing Institute.
Proof
Three named client testimonials (Eventbrite, Accredible, Clearhub); no numbered results published.
Reviews
None found, checked Nov 9, 2026
Clients it names
Eventbrite, Accredible, Clearhub
Facts
Troy, MI
Relationship
No paid placement and no traded link.
Also ranked by
Web Tonic (7)

Score, part by part

  • Proof5/25
  • Buyer fit10/20
  • Reviews1/15
  • Depth14/15
  • Transparency12/15
  • Activity2/10

Sources mantisresearch.com · mantisresearch.com · webtonic.io

7

Digital Third Coast

41/100

Best for Food and consumer brands, newsworthy PR

Why it ranks
4.9 on 54 Clutch reviews, but no original-research work on its site, so it is a weak fit for data studies.
Best for
Brands that want creative, newsworthy PR campaigns and tier-one editorial coverage.
Not for
Buyers wanting fixed pricing: scoped by hours, six-month standard agreement. Minimum project is $10,000+.
Price
Not public, checked Nov 9, 2026. Clutch: $10,000+ minimum project. source
Study proof
No data studies mentioned on its homepage; one list recommends it for newsworthy campaigns.
Proof
US Foods: 500+ media placements and visibility ahead of its top competitor in 6 months.
Reviews
Clutch: 4.9 from 54 reviews, checked Nov 9, 2026
Clients it names
US Foods, Life Time, Olivet Nazarene University, Orbit Media Studios
Facts
Chicago, IL · Founded 2007 · Team: 10-49
Relationship
No paid placement and no traded link.
Also ranked by
MADX Digital (1)

Score, part by part

  • Proof10/25
  • Buyer fit5/20
  • Reviews13/15
  • Depth4/15
  • Transparency7/15
  • Activity2/10

Sources digitalthirdcoast.com · clutch.co · madx.digital

Compare them side by side

#FirmBest forNot forPriceStudy proofScore
GFDGreen Flag DigitalNot public; sized on a callNot scored
1FractlBrands wanting national press from surveysBuyers wanting a steady media-relations retainer: it is a campaign and research shop.Not public, checked Nov 9, 2026. Clutch: $5,000+ minimum project.Original research studies are the core product; research cited in HBR, NYT, MIT and TIME.73
2Siege MediaBrands wanting data content that earns linksSmall budgets: lists put programs at $8,000 to $25,000+ a month.Content from $8,000/mo; digital PR about $12,000-$15,000/mo (Ten Speed list)Reports 958 organic links for Instacart and 10,675+ for Zendesk on its site.68
3Column Five MediaSaaS and AI brands needing reports, toolkitsSmall budgets: content system $25,000 to $100,000 a month.$25,000-$100,000/mo (3-month minimum); brand development from $50,000Runs the research-report agency list that names itself #8 of 9.59
4Reboot OnlineUK brands, data-led PR from GBP 3,500Buyers needing a US team or one-off campaigns: retainers only, from GBP 3,500 a month.Retainers from GBP 3,500/moIn-house PhD data team; published SEO and AI experiments cited by Rand Fishkin, Cyrus Shepard and Neil Patel. Ranks itself #1 on its own data-marketing list.58
5MADX DigitalSaaS brands wanting PR and SEO case studiesNon-SaaS buyers: it works with SaaS brands (50+).Clutch: SEO packages from $2,500/moPublishes SaaS case studies with GA4 numbers; its digital PR page ranks 10 agencies and does not include itself.53
6Mantis ResearchB2B marketers designing their own surveysBuyers wanting a large team or a full link and PR program: the site shows one named lead and four research services.Research projects from USD 15,000; retainers from USD 8,000/mo (Web Tonic list)Specialist in survey research for content; founder previously built the editorial team at Content Marketing Institute.44
7Digital Third CoastFood and consumer brands, newsworthy PRBuyers wanting fixed pricing: scoped by hours, six-month standard agreement. Minimum project is $10,000+.Not public, checked Nov 9, 2026. Clutch: $10,000+ minimum project.No data studies mentioned on its homepage; one list recommends it for newsworthy campaigns.41

"Not for" is our reading of each firm's size, minimum, clients and focus, not a statement from the firm.

How we built this list

  • Every fact on a firm comes from a page we opened: the firm's own site and at least two independent pages, such as Clutch, G2, a case study or press. Each card links its sources.
  • Prices are the firm's published range or minimum, with its source, or "Not public" with the date we checked.
  • Best for and Not for are our reading of each firm's size, minimum, clients and focus, not a statement from the firm.
  • Scores use one 100-point rubric on public evidence only. Opinions and relationships are shown beside a score and never change it.
  • We recheck prices and clients every quarter and log each change on the page.

The rubric, 100 points:

  • Proof of results (25 points): Public case studies with numbers, and named clients who say so on the record.
  • Fit for the list's buyer (20 points): Named clients in the category and stage the list is for.
  • Third-party reviews (15 points): Clutch, G2 or similar: count and average, dated.
  • Specialist depth (15 points): The service is core, not one line on a long menu, and the people doing it are named.
  • Transparency (15 points): Public pricing or minimums, named leadership and a clear location.
  • Current activity (10 points): Work, writing or hiring in the last 12 months.

The full method, and how to ask for a correction

Questions about this list

Which agencies score highest on this list?

Fractl (73), Siege Media (68) and Column Five Media (59) score highest, out of 100 on our published rubric.

Which of these agencies show a price?

A public price or minimum is on record for Fractl, Siege Media, Column Five Media, MADX Digital and Digital Third Coast. Each card shows the figure and where it comes from. The others quote after a call.

How did you score these firms?

On one 100-point rubric, using public evidence only: proof of results (25), fit for the list's buyer (20), third-party reviews (15), specialist depth (15), transparency (15), current activity (10). Opinions and relationships are shown beside a score and never change it.

Did any firm pay to be on this list?

No. Green Flag Digital publishes this list, and it is our firm. We list it first, unnumbered and unscored, so the rubric did not put it there. No firm paid to appear here, and no listing was traded for a link.

Where does Green Flag Digital fit?

Green Flag Digital is a B2B SEO, AEO and digital PR firm in San Diego. It is our firm, so we do not score it here.

How often is this list updated?

We recheck prices and clients every quarter, and sooner when a firm asks for a correction. Every change goes in the update log at the foot of the page.

Sources

Each firm's card links the pages its facts come from. We also read these 5 lists by other publishers, to see who else names each firm:

Update log

  • : List built: 7 agencies scored on rubric v1. Facts checked Nov 9, 2026.