Portfolio Company · Operating Co.

SDI Inc.

Business Services · Website

backed byLLR Partners

CurrentBusiness Services

SDI Inc.

a portfolio company of

LLR Partners

Status on record: Current

PE Firm Index

Who owns SDI Inc.?

SDI Inc. is listed as a current portfolio company of LLR Partners on LLR Partners' own portfolio page.

From the company's website

LS Direct offers innovative direct mail marketing solutions designed to drive growth, and help businesses succeed through targeted campaigns.

Source: lsdirect.com, read November 2026

Company Snapshot

SDI Inc. is a Business Services company. Its owner on record, LLR Partners, is a lower middle market private equity firm founded in 1999, headquartered in Philadelphia, USA. LLR Partners lists 128 companies in the index, 4 of them in Business Services.

SectorBusiness Services

Parent PE firmLLR Partners

Ownership statusCurrent

WebsiteVisit ↗

About the owner

LLR Partners

Headquarters: Philadelphia, USA
Founded: 1999
Strategy: Lower middle market private equity, Flexible capital
Sectors: Software, Tech-enabled companies, Knowledge economy
Companies in the index: 128

LLR Partners is a lower middle market private equity firm that invests in software and tech-enabled companies within the knowledge economy.

Read the LLR Partners profile

Questions about SDI Inc.

Who owns SDI Inc.?

SDI Inc. is listed as a current portfolio company of LLR Partners on LLR Partners' own portfolio page.

What sector is SDI Inc. in?

SDI Inc. is in Business Services. Classified from the company's own description.

Where is LLR Partners headquartered?

LLR Partners is headquartered in Philadelphia, USA.

What else does LLR Partners own in Business Services?

LLR Partners lists 3 other Business Services companies in the index, including Agility Recovery, Logi Analytics and Stratix.

What is SDI Inc.'s website?

SDI Inc.'s website is https://lsdirect.com/.

Sources

LLR Partners
https://www.llrpartners.com/portfolio-companies/

This profile is based on publicly available information and may be incomplete or outdated. PE Firm Index is not affiliated with SDI Inc. and does not provide investment advice.

Other portfolio companies of LLR Partners

6 of 127 shown

See the full LLR Partners portfolio.

Other Business Services companies held by LLR Partners

Agility Recovery Logi Analytics Stratix

Other Business Services portfolio companies

101 - Food Lifecycle Solutions

via Altamont Capital Partners

via Chimney Rock Equity Partners

3Pillar Global

via NewSpring Capital

Browse PE-backed companies.

Is this your company?

Claiming is free and reviewed by hand. Correct facts and add your team.

Claim this profile Suggest a correction

Ownership

Parent PE firm

LLR Partners

Philadelphia, USA

Status: Current

Check this company's website

Check this company's website now

Free, in about two minutes: the verified issues a buyer or a customer's browser would meet. Runs on GTM Brain, by DevriX.

Observational measurements of this company's public website only. Not a rating of the company, its performance, its management, or its investment merit. Not investment advice. Request a correction or removal via Submit Update.

For PE-backed companies

DevriX

DevriX runs the websites, integrations and data that bring in revenue, as one accountable engineering and operations team, through acquisitions and exit.

Where DevriX helps

Value creation through the holdRevenue, data, web and AI run as one operating cadence, tied to EBITDA.Add-ons and carve-outsConsolidate or separate platforms and unify reporting after a deal.Exit readinessFind the technology and data issues a buyer's diligence would raise, before it does.

Send DevriX a short brief

A short form on devrix.com. No call to book.

Disclosure: PE Firm Index is maintained by Mario Peshev, who founded and runs DevriX. DevriX listing

Weekly PE M&A and market research, by email

The Growth Shuttle Insider is Mario Peshev's weekly newsletter for PE owners and operators. Each issue carries the week's private equity deals from this index, market data and research, and an essay from Mario.

Free. One email a week. Unsubscribe from any issue. Your address goes to beehiiv, the service that sends the Insider.

Research

The 2027 Digital Value Creation Baseline

1,407 PE-backed companies from 179 sponsors, measured from public sources in October 2026. 15% of service and product companies have the full path from search to CRM.

Read the research

Research by Growth Shuttle and DevriX.