Company record · observed Oct 11, 2026 · confidence 0.50

UnclaimedIT consultingFounded 200963 staffLocal

AddendumIT service provider profile · Marina Del Rey, CA

Marina Del Rey, CA · localaddendumgroup.com ↗+13108713613

Ownership: IndependentPublic: NoTicker: not observedAcquisition: not observedClosed: not observed

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MSP score · confidence 0.50

30-day change: not observed · No changes detected in the last 180 days.

National rank#11,201of 46,016 · top 25%

CA#1,259of 4,737 · top 27%

Marina Del Rey#3of 9 · top 34%

Security headers FHosting WixDomain 13 yrsNAICS 332710

MSP Signal ranks Addendum #11,201 of 46,016 IT service providers nationally. Addendum is an IT service provider in Marina Del Rey, CA, founded 2009, with 63 staff. It offers Enterprise Software Development, Team Augmentation, IT Outsourcing.

Source: MSP Signal, Addendum company profile, Oct 11, 2026, https://mspsignal.com/msp/addendum

Score breakdown

5 pillars · weighted · 55.8 / 100

Local median overlay: not observed · how the score works

Weighted contribution · how 55.8 is builtscore × weight = points

55.8of 100 · 44.2 unearned

0255075100

PillarScore / 100WeightPoints

Reputation

×30%20.2

Presence

×25%17.5

Credibility

×20%8.1

Scale

×15%10.0

Momentum

×10%0.0

▲ Momentum yields the fewest points per weight, the pillar with the most headroom.

30-day score Δ–no comparable history

30-day rank Δ–no comparable history

Change types · 180 d0 / 4No changes detected in the last 180 days.

Local rivals · 25 mihow chosen

770 IT service providers within 25 miBasemap © Esri, HERE, Garmin, OpenStreetMap contributors

Claim · free · local benchmarkPreview

rivals by score band · gap to nearest higher / lower · counts, locked rows are previews, not published facts

Signal feed

no events returned

No changes detected in the last 180 days.

Signal planSignal plan · full rival watch: every change at every nearby rival.See the Signal plan

Reputation

Google · 0 reviews

–

Listing: not observedreview velocity: not observed

Star distribution: not observed

What reviewers mention

not observed

Listings

not observed

Sentimentnot observed

Hoursnot observed

Other sources · BBB: not observed · Facebook rating: not observed

Services and offer

from their site

EEnterprise Software Development

TTeam Augmentation

IIT Outsourcing

DData Management

DData Strategy

BBusiness Intelligence

IIT Support

SSoftware Maintenance

QQuality Assurance

IT consulting

Industries

FinanceFintechBankingTelecomGovernment

Availability

not observed

Guarantees

not observed

Compliance

not observed

Works with

not observed

Partners

not observed

Web & search

MSPSIG.RPT search scan · technical record

Organic visits–/ month est.

Domain authority–/ 100

Top keywords · position

Organic keywords, top keywords, backlinks, referring domains and paid search: Signal plan. Owners see their own.

Website technology

.netAWS Sdk For JavascriptAWS Trusted AdvisorAmazon AWSAndroidAngularAngular MaterialAngularjsAtlassianAzure Analysis ServicesAzure DevopsAzure Sql Database

▸ Open technical record · web maturity 100 / 100

Socials10/10

Longevity10/10

Email Auth15/15

Site Depth10/10

Brand Assets5/5

unmeasured components: seo, reviews, pricing, blog

Performance · SEO · Accessibility56 · 100 · 88

Email authSPF · DKIM · DMARC p=reject

CDNnot observed

HostingWix

Blognot observed

Subdomains4

Security headersF

Record & location

Approximate HQ areaBasemap © Esri, HERE, Garmin, OpenStreetMap contributors

Location

Tahiti Way

Founded

2009

Staff

63 staff · national median 10

Languages

English

Annual revenue

$10M to $50M · range · exact estimate on the Signal plan

NAICS

332710, 541511

Also from

not observed

States served

not observed

Headcount change

Shrinking · 6, 12 and 24 month figures on the Signal plan

People & hiring

25 tracked · 3 leaders

Staff by department

Engineering

Information Technology

Human Resources

Operations

Finance

Business Development

Support

Accounting

Hiring

0job postings in 90 days

Job postings: not observed

Careers page ↗

Recognition, news & about

public sources

Awards & rankings

not observed

Peer mentions in 90 days: 0 · BBB: not observed

In the news

not observed

Aboutnot observed

Leadership

3 leaders named

0 joined and 0 left in 90 days

names, titles and people moves on the Signal plan

Service areas

not observed

Partner badge

not observed

What they say about themselves

site quotations · unconfirmed

Certification

“certified QA engineers and managers monitor software engineering processes to ensure quality.”

up to three quotations per category

Frequently asked questions

reuses public facts · FAQ schema

Where is Addendum located?

Tahiti Way.

How many people work at Addendum?

Addendum has 63 staff.

What services does Addendum offer?

Enterprise Software Development, Team Augmentation, IT Outsourcing, Data Management, Data Strategy, Business Intelligence, IT Support, Software Maintenance, Quality Assurance, IT consulting.

How does Addendum rank among IT providers in Marina Del Rey?

#3 of 9 observed providers in Marina Del Rey; #11,201 of 46,016 nationally.

Is Addendum claimed on MSP Signal?

Not claimed.

Claimed · not shown (unclaimed) · Verified data · conditional on field sources · Registered entity · conditional on legal-entity nameLast observed Oct 11, 2026 · Citation: Addendum company profile · https://mspsignal.com/msp/addendum

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