Walter Barandiaran

Walter Barandiaran

Managing Partner atThe Argentum GroupMonroe, CT

Walter Barandiaran is a deal team member at Argentum Group, involved with M Cubed Technologies, a company acquired by II-VI Incorporated in 2012.

What Walter can write

Writes checks of$3M to $30M
Comes in atSeries BCan lead the round
Pitch pageSubmit on their siteThe firm asks founders to apply here.

The Argentum Group writes $3M to $30M checks, larger than 93% of firms in the atlas.

Bars: how many firms report each check band. Highlighted: The Argentum Group.

Career

  1. Steinberg & Lyman · Senior Vice President, Corporate Finance
  2. Argentum · Managing Partner
    Now

Companies founded

Argentum

Investments named in public bios

M Cubed TechnologiesAFS TechnologiesAventriContinental WasteCrossMedia ServicesEastern EnvironmentalEnvironmental Quality ManagementHanweckLifeStar ResponseMCubed TechnologiesMediant CommunicationsMedsiteMetalicoNuORDEROmnipointOrion Labs

Focus

business servicestechnology-enabled servicesindustrial/environmental servicesLogistics & Specialty Services

Education

Baruch College (CUNY), BBA in International BusinessNYU Stern School of Business

Also at The Argentum Group

Partners like Walter

At firms with a similar stage, sector and check size.

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One email when Walter's firm raises a fund, adds a partner or shows new activity.

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Questions

Who is Walter Barandiaran?

Walter Barandiaran is a deal team member at Argentum Group, involved with M Cubed Technologies, a company acquired by II-VI Incorporated in 2012.

How much does Walter Barandiaran invest?

Walter Barandiaran invests through The Argentum Group, which writes checks of $3M to $30M at series b.

How do I pitch Walter Barandiaran?

A warm intro from a founder The Argentum Group backed works best. A short LinkedIn note with one line on traction is the next best route.

What did Walter Barandiaran do before The Argentum Group?

Senior Vice President, Corporate Finance at Steinberg & Lyman.

Last updated 2026-10-15. Is this you? Ask for a correction.