Cornerstone Excavating Headquarters & Office Locations

Construction company based in Lake Ann, Michigan. Headquarters: PO Box is 315, Lake Ann, Michigan 49650, United States.

Headquarters
Lake Ann, MI
Total locations · 2+ countries
9
Employees · est. 2026
30

Identity graph

Cornerstone Excavating headquarters, locations and relationships

HeadquartersPO Box is 315, Lake Ann, Michigan 49650, United StatesOpen in Google Maps
Industry
Construction
Founded
2002

Cornerstone Excavating office locations

9 total · 2+ countries
Cornerstone Excavating office locations: headquarters and key locations
CityState / regionCountryType
Lake AnnMichiganUnited StatesHeadquarters
Sherwood ParkAlbertaCanadaOffice
HarrimanTennesseeUnited StatesOffice
KodiakAlaskaUnited StatesOffice
South WeberUtahUnited StatesOffice
Traverse CityMichiganUnited StatesOffice
See all 9 locations
Parent company
No parent company recorded in GraphIQ.ai.

Verified from public filings, company websites and news · Methodology

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About Cornerstone Excavating

Cornerstone Excavating is headquartered in Lake Ann, Michigan, United States. Founded in 2002, the company has 9 recorded locations across 2+ countries and employs approximately 30 people worldwide.

Where is Cornerstone Excavating's main office?

Cornerstone Excavating's main headquarters office is located at PO Box is 315, Lake Ann, Michigan 49650, United States. This is the company's primary corporate address.

Cornerstone Excavating regional offices

Beyond its headquarters in Lake Ann, Cornerstone Excavating has recorded locations in United States and Canada.

Cornerstone Excavating contact information

The main switchboard for Cornerstone Excavating headquarters can be reached at +1 231 218 5368. Official website: cornerstoneexcavating.com.

What does Cornerstone Excavating do?

Cornerstone Excavating provides infrastructure solutions, specializing in specialty excavation and underground utility installations.

One entity, every stage

Put Cornerstone Excavating to work across your revenue bowtie

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  1. Target Define the market Build the account list from companies shaped like your best customers, Cornerstone Excavating included. Fingerprint search 
  2. Cover Plan territories Cornerstone Excavating's 9 locations roll up to one account, so it lands in one territory, once. Territory planning 
  3. Engage Act on timing Leadership changes, funding and M&A arrive linked to the account, not a loose headline. Signal monitoring 
  4. Convert Close on a resolved record Inbound and closed-won attach to one CRM record, with no duplicates to merge. CRM enrichment 
  5. Retain Ground every answer Customer teams and AI agents answer from the same entity, with a source and a date. AI agent data layer 
  6. Expand Find the next buyer inside Follow subsidiaries and divisions to the next team that can buy. Account expansion 

About the source

What is GraphIQ.ai?

A B2B identity graph. It resolves each organization into one verified entity and maps its parent and subsidiaries, employees, competitors and news signals. Revenue teams use it in the product; AI agents query it through the REST API and MCP server.

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Cornerstone Excavating: frequently asked questions

Where is Cornerstone Excavating headquarters?

PO Box is 315, Lake Ann, Michigan 49650, United States.

What is Cornerstone Excavating's phone number?

+1 231 218 5368 (headquarters).

When was Cornerstone Excavating founded?

2002.

How many employees does Cornerstone Excavating have?

About 30, as of October 2026 (GraphIQ.ai estimate).

How many offices does Cornerstone Excavating have?

9 locations across 2+ countries, including Sherwood Park, Harriman, Kodiak, South Weber.

Questions about GraphIQ.ai

Is GraphIQ.ai a list of companies like a spreadsheet?

No. Each organization resolves to one verified entity linked to its parent, subsidiaries, people and signals, so Cornerstone Excavating here is the same Cornerstone Excavating in your CRM, territory plan and agent answers.

Where does this Cornerstone Excavating data come from?

Public filings, company websites and news, resolved to one entity and continuously updated.

Find more info on Cornerstone Excavating using GraphIQ

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