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TDN Five A Diversified Holding Company
A wide, quiet stone interior with a tall glass doorway open onto a light-filled room.

L1 · EntranceA Diversified Holding Company

One holding company. Four industries. A portfolio built for lasting value.

TDN Five provides executive oversight, capital discipline, and strategic alignment across independently managed companies in digital, ecommerce, finance, and consulting.

Explore Our Companies View Our Portfolio

Have a business that complements the portfolio? Present an Opportunity

Operating since2008
Operating companies4
Portfolio brands45
IndustriesDigital · Ecommerce · Finance · Consulting

L2 · DirectoryThe four doors

Four industries. Find your starting point.

Each operating company has its own management team and its own brands. Choose the industry that matches your need, then go directly to the company.

DoorCompanyIndustryOverseesBrandsGo to
01Door TDN Agency Digital Digital media, directories, lead generation, advertising, content, and online platforms. 12Brands Visit site ↗Details
02Door Coreronize Ecommerce Product-based and online retail brands, including specialized consumer categories. 10Brands Visit site ↗Details
03Door Herij Network Finance Finance-related brands and services, subject to licensing requirements. 16Brands Visit site ↗Details
04Door Hydrosuns Consulting Consulting, advisory, operational-support, and business-development brands. 7Brands Visit site ↗Details
Level 2 · Four principal operating companiesGo directly to the company’s website.
Explore Our Companies Explore by industry or business need.

Where growth stalls

Growth eventually asks for more than one team can build.

Growing businesses often reach a point where they need more than they can build alone.

They need capital. They need sound oversight. They need experienced leadership at the table.

But many sources of help come with a trade. Control moves away. Daily decisions slow down. The business loses its focus.

Investors face a different problem. Opportunities are scattered. Offers are unclear. The path to revenue is hard to see.

Prospective employees meet a similar gap. It is hard to tell which company fits, or who leads it.

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The cost of fragmentation

A fragmented approach costs more than time.

Capital comes from one source. Advice comes from another. Leadership is stretched across both. Nobody owns the whole picture.

Owners spend energy managing outside parties instead of customers. Investors weigh offers with no clear buyer or revenue path. Talented people pass over good companies because they can’t find them.

Over time, the business drifts from its operating focus. Decisions get slower. Standards get uneven.

The cost is not one bad quarter. It is lasting value that never gets built.

The Power of One

Investment and oversight do not have to cost independence.

Under TDN Five, each company keeps its own leadership and its own operating focus. Investment, oversight, and strategy come from one consistent source.

The Power of One means one standard across many businesses. It does not mean one way of running every company.

Business owners
Support without surrender.
Investors
Defined offers.
Prospective employees
A clear place to start.

L1 → L2 → L3How TDN Five operates

One holding company. Four operating industries. Specialized brands.

TDN Five sets strategy, oversight, and capital. Each company’s management team runs its day-to-day operations.

L1 · HOLDING COMPANYTDN FiveOversight · Capital · Risk · StrategyD01 / DIGITALTDN Agency12 portfolio brandsDigital mediaDirectoriesLead generationAdvertisingD02 / ECOMMERCECoreronize10 portfolio brandsProduct-based retailOnline retailConsumer categoriesD03 / FINANCEHerij Network16 portfolio brandsFinance-related brandsFinance-related servicesLicensing complianceD04 / CONSULTINGHydrosuns7 portfolio brandsConsultingAdvisoryOperational supportBusiness developmentL3 · SECTORS AND PORTFOLIO BRANDS

L2 · D01 / Digital

TDN Agency

Oversees brands and capabilities in digital media, directories, lead generation, advertising, content, and online platforms.

  • Digital media
  • Directories
  • Lead generation
  • Advertising
  • Content
  • Online platforms

12 portfolio brands

Visit TDN Agency ↗Company details

Select a company in the map to see what it oversees.

  • Portfolio strategySets the direction the four companies share.
  • Executive oversightReviews leadership and results on a set cadence.
  • Governance and riskEstablishes the parameters every company works within.
  • Capital allocationMoves capital toward validated opportunities.
  • LeadershipAppoints or supports capable people in charge.
  • Performance reviewEvaluates each company against its own plan.
  • Cross-company opportunityFinds where one company can strengthen another.
  • Enterprise valueBuilds value that lasts beyond any one quarter.
How We Operate

EvidenceSince 2008

Portfolio-building experience that began with a directory.

In 2008, TDN Five launched an online-only, unbiased North American business directory. About 80% of its small and midsize business participants received free listings.

An executive stands at a glass table with four open portfolios, framed by the labels Digital, Ecommerce, Finance, and Consulting.
Four industries. One aligned portfolio.Plate · L2
2008Operating as TDN Five
4Principal operating companies
45Portfolio brands

Distribution by industry · 45 brands

TDN AgencyDigital · 12CoreronizeEcommerce · 10Herij NetworkFinance · 16HydrosunsConsulting · 7
  1. 2008

    Launched an online business directory offering free listings to small and midsize businesses.

  2. Launch

    Partnered with Latisse during the launch of Zoom Email Marketing.

  3. Growth

    Developed Zoom Email Marketing into the digital brand ZeSend.

  4. Today

    Four operating companies and 45 brands, from local lead-generation directories to luxury lighting.

View Our Portfolio Our history

RequestSummary of Qualifications

Get the Summary of Qualifications.

A short brief on TDN Five, written for your situation. Use it to decide your next step with confidence.

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Prepared for owners, investors, and candidates.Brief · L1
  1. Who we areAn overview of TDN Five as a holding company, and how we work with each business.
  2. Our four industriesDigital, ecommerce, finance, and consulting, and what each company does.
  3. How we invest and overseeOur approach to leadership, disciplined investment, and governance.
  4. Your next stepA route for business owners, investors, or prospective employees, depending on your path.
  • Know who owns and leads each company.
  • See which industry fits your need.
  • Understand how oversight and investment work.
  • Leave with one clear next step.
I am a
Two fields. No sales calls.
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Careerscareers.tdnfive.com

Build your career inside a structure you can see.

Know who owns the business, who leads it, and how your role fits its future. Roles span the holding company and all four operating companies.

Explore Careers ↗
  • CorporateShared TDN Five departments
  • TDN AgencyDigital
  • CoreronizeEcommerce
  • Herij NetworkFinance
  • HydrosunsConsulting
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Selective portfolio opportunitiesSide entrance · L1

Portfolio Opportunities

Some opportunities belong within a larger structure.

TDN Five considers select businesses, brands, and strategic relationships that complement our industries and strengthen the portfolio.

Present an OpportunityReview the partnership criteria

Questions

Before you choose a door.

Short answers to the questions visitors ask most. More detail sits on each page.

Next step

Two clear paths. Choose the one that fits.

If you need a product or service

Find the operating company that serves your need, then go directly to its brand.

Explore Our Companies

If you are evaluating TDN Five

Review the structure, the portfolio, and the standards behind every decision.

View Our PortfolioCareers ↗
Explore Our Companies