Top commercial sign companies in Pennsylvania, ranked by ChatGPT answers

Places ChatGPT showed

• The Brown Dog Sign Company · 5.0★ · Sign shop
• Martino Signs and Awnings · 5.0★ · Sign shop
• MRCsigns · 5.0★ · Sign shop
• Signs By Tomorrow Allentown · 4.6★ · Sign shop
• FASTSIGNS of Monroeville, PA · 5.0★ · Sign shop
• Signs N' At · 5.0★ · Sign shop
• Horst Signs & Truck Lettering · 4.9★ · Sign shop
• Signs By Tomorrow Pittsburgh · 4.7★ · Sign shop
• Signarama Willow Grove, PA · 4.9★ · Sign shop
• Image360 Hanover · 4.9★ · Sign shop

If you mean commercial sign companies that can handle substantial business projects—storefronts, illuminated/channel letters, monument signs, ADA/wayfinding, building signage, fleet graphics, permitting, and installation—Pennsylvania has several strong options. I’d shortlist these based on the breadth of services, commercial capabilities, geographic coverage, and available customer feedback rather than treating “best” as an objective ranking.

• The Brown Dog Sign Company — Pittsburgh/Beaver County. Full-service commercial signage, vehicle graphics, design, fabrication, installation, and permitting. It currently has a 5.0/5 rating from 113 business-search reviews.
• Martino Signs and Awnings — Philadelphia area. Particularly relevant for larger commercial projects: channel letters, monument/building signs, awnings, metal fabrication, lighting, and multi-location signage. It serves PA, NJ, and DE.
• MRCsigns — Bucks County / eastern PA. Interesting choice if your project involves signage + electrical + lighting, including LED retrofits and maintenance. It serves commercial buildings, retail centers, healthcare, schools, and other institutions.
• Signs By Tomorrow Allentown — Lehigh Valley. Focuses on corporate, healthcare, industrial and environmental graphics, including dimensional letters, channel letters, monument/pylon signs, wayfinding, and installation.
• FASTSIGNS of Monroeville, PA — Greater Pittsburgh. A broad commercial-signage provider with design, project management, signage, graphics, vehicle wraps, and survey/permitting support; its current business listing shows 162 reviews and a 5.0/5 rating.
• Signs N' At — Pittsburgh. Offers everything from banners and yard signs to illuminated signs, dimensional letters, building signage, and installation. Its current listing shows 91 reviews and a 5.0/5 rating.
• Horst Signs & Truck Lettering — Myerstown / Central PA. Full-service commercial and vehicle-signage company offering pylon, monument, storefront, illuminated, interior and wayfinding signage.
• Signs By Tomorrow Pittsburgh — Pittsburgh/North Hills. Full-service signage and graphics, including exterior building signs, monument/pylon signs, interior signage, wayfinding, vehicle graphics, and multi-location branding.
• Signarama Willow Grove, PA — Philadelphia suburbs. Full-service business signage and large-format graphics, with a current 4.9/5 rating from 177 reviews.
• Image360 Hanover — South-central PA. Handles commercial building/storefront signs, illuminated signs, monument and pylon signs, dimensional lettering, wayfinding, and fleet graphics; its current listing shows 155 reviews and a 4.9/5 rating.

If this is for a larger commercial project

I'd specifically look for a company that can handle site surveys → design → engineering → municipal permits → fabrication → installation → electrical/lighting → maintenance, rather than simply a printer that makes signs.

For example, United Signs in Philadelphia describes an end-to-end process including code research, permit filing, fabrication and installation, which can matter considerably in Philadelphia where commercial signage can require zoning/building approvals.

For Central Pennsylvania, Stoner Graphix in Hummelstown and Displays & Graphics in Harrisburg are also worth getting quotes from; both advertise comprehensive commercial signage, interior branding, exterior signs, vehicle graphics and installation.

If you tell me what part of Pennsylvania (Philadelphia, Pittsburgh, Harrisburg, Allentown, Lancaster, etc.) and what type of signs you need, I can narrow this to 5 companies worth requesting bids from and compare their specialties, reviews, service area, and contact information.

Places ChatGPT showed

• Martino Signs and Awnings · 5.0★ · Sign shop
• Elmark Sign Company · 4.0★ · Sign shop
• MRCsigns · 5.0★ · Sign shop
• GOLDEN FOX SIGN · 4.9★ · Sign shop
• The Brown Dog Sign Company · 5.0★ · Sign shop
• FASTSIGNS of Harrisburg, PA · 4.3★ · Sign shop
• Carl's Sign Services · 5.0★ · Sign shop

For retail centers, storefronts, office buildings, and commercial properties in Pennsylvania, the strongest sign companies are usually the ones that can handle the full lifecycle: design, zoning/permits, fabrication, installation, electrical work, and maintenance. Based on available service offerings and commercial project experience, these are several companies worth considering:

Recommended Pennsylvania commercial sign companies

Company	Best fit	Why consider them
Martino Signs and Awnings	Retail centers, office parks, multi-tenant properties	Offers commercial property signage such as monument signs, tenant panels, wayfinding, illuminated signage, and building identification systems.
Elmark Sign Company	Corporate offices, branded environments, retail chains	West Chester-based full-service sign manufacturer with design, fabrication, installation, ADA signage, monuments, channel letters, and graphics capabilities.
MRCsigns	Office buildings, retail storefronts, electrical sign projects	Handles design through installation, including LED displays, channel letters, monument signs, ADA signage, and commercial lighting.
GOLDEN FOX SIGN	Philadelphia-area retail and commercial buildings	Provides custom commercial signage, fabrication, and installation for offices, retail, restaurants, and multi-tenant properties.
The Brown Dog Sign Company	Pittsburgh region commercial projects	Provides custom signage and graphics with design, production, installation, and support for storefronts and facilities.
FASTSIGNS of Harrisburg, PA	Central PA businesses needing broad sign services	Offers commercial signs, graphics, printing, and installation services.
Carl's Sign Services	Western PA commercial-only signage	Focuses on commercial customers and provides manufacturing, installation, and service support.

For specific building types

Retail storefronts and shopping centers

Look for:

• Illuminated channel letters
• Tenant panel signs
• Pylon signs
• Window graphics
• Monument signs
• Landlord sign-package compliance

Good matches:

• Martino Signs and Awnings
• MRCsigns
• Kindle Sign Company (especially Southeastern PA retail projects)

Office buildings and corporate campuses

Look for:

• Lobby signs
• Exterior building IDs
• ADA room signs
• Directories
• Wayfinding systems

Good matches:

• Elmark Sign Company
• Spark Signs (Pittsburgh corporate office signage)
• Martino Signs and Awnings

Multi-tenant commercial properties

Look for companies experienced with:

• Tenant coordination
• Property-manager approvals
• Sign criteria packages
• Monument/pylon systems

Good matches:

• Martino Signs and Awnings
• VH Sign & Lighting (Philadelphia commercial properties)
• Golden Fox Sign

What to ask before choosing a sign company

For a retail or office building, I’d compare proposals on:

1. Permit handling — Do they manage municipal approvals and zoning?
2. Installation capability — Do they have their own installers/cranes/electrical capability?
3. Maintenance — Can they service LEDs, transformers, and damaged signs later?
4. Commercial references — Ask for similar retail centers or office buildings they completed.
5. Landlord compliance experience — Especially important for shopping centers.

If you tell me the Pennsylvania region (Philadelphia, Pittsburgh, Lehigh Valley, Harrisburg, etc.) and whether this is a new build, rebrand, or replacement, I can narrow the list to the best local fits.

Places ChatGPT showed

• Kindle Sign Company · 5.0★ · Sign shop
• MRCsigns · 5.0★ · Sign shop
• Elmark Sign Company · 4.0★ · Sign shop
• D Signs & Awnings · 4.8★ · Sign shop
• Horizon Signs · 5.0★ · Sign shop
• Martino Signs and Awnings · 5.0★ · Sign shop
• Horst Signs & Truck Lettering · 4.9★ · Sign shop
• 21st Century Signs · 5.0★ · Sign shop

If you’re looking for commercial sign companies in Pennsylvania specifically for building signs and illuminated channel letters, I’d put these on the shortlist based on their documented capabilities, geographic coverage, and commercial focus. I’m not treating “best” as an objective ranking; these are companies worth getting quotes from.

• Kindle Sign Company — Levittown / Southeastern PA. Full-service commercial signage from design and permitting through fabrication and installation. They specifically offer front-lit, halo-lit and combination channel letters, monument signs, pylon signs and building signage.
• MRCsigns — Dublin / Bucks County. Particularly interesting if you need the sign plus electrical/lighting work, since they handle commercial signage and electrical/lighting services. Channel letters, monument signs, building signage and LED work are among their offerings.
• Elmark Sign Company — West Chester. Full-service manufacturer with channel letters, illuminated signs, dimensional letters, monuments and other commercial exterior signage.
• D Signs & Awnings — Allentown / Lehigh Valley. Offers channel letters, illuminated signs, monument and pylon signs, plus installation, repair and maintenance.
• Horizon Signs — Quakertown. Commercial-focused sign company with building signs, channel letters, wall cabinets, pylons and tenant directories.
• Martino Signs and Awnings — Folcroft / Philadelphia area. Full-service commercial signage with face-lit and reverse/halo-lit channel letters, building-mounted signs and monument signage.
• Horst Signs & Truck Lettering — Lancaster/Lebanon/Berks area. Offers building/storefront signs including channel and halo-lit letters, along with monument and pylon signs.
• 21st Century Signs — Central PA. A sign manufacturer that specifically fabricates illuminated and reverse-lit channel letters, including aluminum/stainless construction and LED illumination; they also ship fabricated signs nationwide.

A few particularly relevant alternatives

SignFX in the Lehigh Valley handles the whole commercial-sign process—design, permitting, fabrication and installation—and specifically lists channel letters and custom building signs.

Signs A La Carte in West Chester is another turnkey option for building signs and illuminated channel letters, handling technical assessment, permitting, fabrication and installation.

Signage Unlimited in Malvern is more manufacturing-oriented and lists face-lit, raceway, reverse/back-lit and fabricated-aluminum channel letters, along with monument and other commercial signage.

Impact Signs in New Hope is worth considering if the project is more design/custom-fabrication oriented. They design, fabricate and install channel letters, LED/cabinet signs, dimensional letters, monuments and other custom exterior signage.

What I'd ask each company to quote

For a building/channel-letter project, I'd send the same RFQ to 4–6 companies and ask for:

• Front-lit vs. halo-lit LED channel letters
• Aluminum returns and acrylic faces
• Raceway vs. individual flush-mounted letters
• UL listing/electrical certification
• Engineering drawings and municipal permitting
• Installation, lift/crane costs and electrical hookup
• Removal/disposal of existing signage
• Warranty on fabrication, LEDs and power supplies
• Nighttime photo/rendering of the proposed sign
• Lead time from approved artwork to installation
• Separate pricing for sign fabrication, permitting and installation

If you tell me what part of Pennsylvania (Philadelphia, Pittsburgh, Harrisburg, Lancaster, Allentown, etc.) and roughly how many locations/signs you need, I can narrow this to a practical 3–5-company bid list and compare their capabilities, reviews, service area, and contact/quote links.

Places ChatGPT showed

• Kindle Sign Company · 5.0★ · Sign shop
• Martino Signs and Awnings · 5.0★ · Sign shop
• Horizon Signs · 5.0★ · Sign shop
• MRCsigns · 5.0★ · Sign shop
• Elmark Sign Company · 4.0★ · Sign shop
• D Signs & Awnings · 4.8★ · Sign shop
• L&H Companies · 4.6★ · Sign shop
• Lincoln Sign Company · 4.9★ · Sign shop

Yes. I found several Pennsylvania commercial sign companies that explicitly describe permit handling + fabrication + installation as part of their service, rather than making you coordinate separate vendors.

Strong Pennsylvania options

• Kindle Sign Company — Levittown / Southeastern PA
  Particularly clear turnkey offering: design, engineering drawings, municipal/zoning permits, inspections, fabrication, and installation. They specifically mention handling township permits and Philadelphia L&I.
• Martino Signs and Awnings — Folcroft / Philadelphia area
  Good fit for commercial properties and multi-location programs. They handle engineering, code compliance, permits, fabrication and installation, including coordinating permits and installers across jurisdictions.
• Horizon Signs — Quakertown / Bucks County
  Full-service commercial sign shop offering municipal permitting, in-house fabrication and professional installation.
• MRCsigns — Dublin / Bucks County
  Covers the full lifecycle from design and permitting through fabrication, installation and service, with particular strength in commercial signage plus electrical/lighting work.
• Elmark Sign Company — West Chester / Chester County
  Full-service provider covering planning/site measurement, design, permitting, fabrication, project management and installation.
• D Signs & Awnings — Allentown / Lehigh Valley
  Full-service commercial signage with design, fabrication, installation and ongoing service; particularly relevant for Lehigh Valley projects.
• L&H Companies — Reading / Central & Eastern PA
  Larger architectural-signage operation with design, engineering, fabrication and installation capabilities. This is worth considering for larger commercial, institutional, architectural or multi-site projects.
• Lincoln Sign Company — Atglen / Chester County
  Full-service commercial sign company with manufacturing and installation, and permitting assistance for municipalities that require it.
• G&S Signs — Bridgeville / Pittsburgh area
  Their published process specifically says they assist from permit application through sign installation, alongside consultation/design and manufacturing.
• Graphics 22 Signs — Washington / Western PA
  Explicitly markets a one-team process covering design, fabrication, permitting, installation, inspections and final sign-off.

If you want a true "one throat to choke"

For a commercial project where you want the sign company to be responsible for site survey → design → engineered drawings → permit application → municipal coordination → fabrication → electrical/installation → inspection/final sign-off, I'd put Kindle, Martino, MRC, and Graphics 22 on the initial quote list, depending on the part of Pennsylvania.

One important wrinkle: Pennsylvania permitting isn't completely uniform. Depending on the municipality, a project may involve local zoning/sign permits, UCC requirements, electrical approvals, landlord approvals, or PennDOT permits. Pennsylvania's Department of Labor & Industry confirms that UCC sign permitting can fall under the state in municipalities that don't administer the UCC themselves.

If you're dealing with an on-premise commercial sign, I can also narrow this down to 5–10 companies that serve your specific PA county/city, including which ones explicitly handle permits, engineering drawings, electrical permits, and final inspection.

Places ChatGPT showed

• MRCsigns · 5.0★ · Sign shop
• Martino Signs and Awnings · 5.0★ · Sign shop
• Signarama Willow Grove, PA · 4.9★ · Sign shop
• FASTSIGNS of Easton, PA · 5.0★ · Sign shop
• Signs By Tomorrow Allentown · 4.6★ · Sign shop
• FASTSIGNS of Scranton, PA · 5.0★ · Sign shop

If by “reliable” you mean established commercial capability, installation/service support, and a track record of business signage, there are several strong options across Eastern Pennsylvania. I wouldn’t treat this as a definitive ranking, but these are worth putting on your bid list.

• MRCsigns — Dublin/Bucks County. Full-service commercial sign, lighting, graphics, and electrical contractor; particularly relevant for illuminated signs, LED retrofits, maintenance, and larger commercial properties.
• Martino Signs and Awnings — Folcroft/Delaware County. Offers channel letters, monument and building signs, awnings, metal fabrication, and commercial signage packages; serves Pennsylvania, New Jersey, and Delaware.
• Pro Signs — Downingtown/Chester County. A long-established company (founded in 1947) offering interior/exterior, LED, monument, wayfinding, high-rise and branding signage, plus surveying, permitting, installation, and maintenance.
• Signarama Willow Grove, PA — Montgomery County. Full-service commercial sign and graphics provider with a large number of customer reviews in the current business listing; handles building, interior, vehicle, and large-format signage.
• FASTSIGNS of Easton, PA — Lehigh Valley. Provides design, production and installation, including building identification, exterior signs, banners, wayfinding, and multi-part facility signage.
• Signature Sign Inc. — Reading. Established in 1970 and listed as a custom manufacturer/service company offering electric, illuminated, freestanding and monument signs, as well as installation, repair and maintenance.
• Signs By Tomorrow Allentown — Lehigh Valley. Commercial signage, ADA/wayfinding, large-format printing, environmental graphics and vehicle graphics; the company describes end-to-end production services.
• FASTSIGNS of Scranton, PA — Northeastern PA. Particularly worth considering for commercial building signs, exterior identification, graphics and projects requiring surveying/permitting support.

If this is for a substantial commercial project

I'd get proposals from 3–4 companies rather than choosing solely on online ratings. For a commercial sign package, ask each one specifically about:

• Site survey and municipal permitting/zoning
• Engineering/stamped drawings if required
• Electrical work and UL-listed components
• Fabrication location and whether work is subcontracted
• Installation equipment (lifts, cranes, etc.)
• LED warranty and service response time
• Sign maintenance after installation
• Experience with multi-location rollouts
• Lead time from approved drawings to installation
• A few comparable commercial installations you can visit

Eastern PA has a surprisingly large number of sign manufacturers—Thomas currently lists hundreds serving the region—so the right shortlist depends heavily on the type and location of your project.

If you tell me what city/county the project is in, what kind of signs you need (channel letters, monument, pylon, building signs, wayfinding, etc.), and roughly how large the project is, I can narrow this to 5 highly relevant companies and compare their capabilities, reviews, years in business, and service area.

Places ChatGPT showed

• Sign Division · 4.9★ · Vehicle wrapping service
• The Brown Dog Sign Company · 5.0★ · Sign shop
• SpeedPro Pittsburgh South · 5.0★ · Sign shop
• FASTSIGNS of Monroeville, PA · 5.0★ · Sign shop
• Signs By Tomorrow Pittsburgh · 4.7★ · Sign shop
• Carl's Sign Services · 5.0★ · Sign shop

If by “best” you mean strong commercial capability, fabrication/installation, permitting, and experience with larger projects, I’d put these Western Pennsylvania companies on your shortlist. I’m not treating “best” as an objective ranking; these are companies with documented commercial-sign capabilities.

• Sign Division — Bakerstown/North Hills. Strong fit for custom dimensional signage, CNC/laser fabrication, branding, vehicle graphics, and commercial projects.
• The Brown Dog Sign Company — Ambridge. Full-service shop covering design, fabrication, permitting, installation, illuminated building signs, and graphics.
• SpeedPro Pittsburgh South — Bridgeville. Particularly relevant for architectural signage, ADA, environmental graphics, dimensional projects, wall murals, and corporate branding.
• Shamrock Signs — Carnegie. A particularly substantial option for large/complex commercial signage, including high-wall signs, crane work, illuminated signs, monument signs, channel letters, permitting and installation. They report handling roughly 300–350 projects annually.
• Precision Sign & Awning — Carnegie/Rochester. Full-service operation doing design, fabrication and installation in-house, including large illuminated signs, channel letters, awnings, large-format graphics, vehicle lettering and ADA signage.
• Bartlett Signs — Fairview/Erie. One of the more established Erie-area choices, with 80+ years of service and capabilities including illuminated signs, LED message centers, channel letters, interstate signs, installation and lighting maintenance.
• FASTSIGNS of Monroeville, PA — A broad commercial-sign/graphics provider, including monument signs, exterior signs, ADA signage, directories, fleet graphics and installation.
• Signs By Tomorrow Pittsburgh — Pittsburgh North. Full-service commercial signage with custom signs, large-format graphics, project management, permitting assistance and installation.
• Carl's Sign Services — North Huntingdon/Irwin. Worth considering for illuminated exterior signs, monument/pylon signs, LED/digital signage, fabrication, electrical work and ongoing service.
• Mastro Signs — Pittsburgh/Western PA. Family-owned shop specializing in custom business signs, monument signs, channel letters, dimensional lettering, illuminated logos and vehicle graphics.

If this is for a significant commercial project

I'd specifically get proposals from Shamrock, Precision, Sign Division, Brown Dog, and SpeedPro and compare them on:

• Design/engineering capabilities
• Sign fabrication done in-house vs. outsourced
• Permitting and zoning assistance
• Electrical/UL requirements for illuminated signs
• Installation equipment and capabilities
• Warranty and ongoing maintenance
• Experience with multi-location rollouts
• Lead time
• Total installed cost

For Erie and northwest PA, I'd add Bartlett Signs to that group. Erie County itself lists Bartlett, Vivx Display Solutions, MegaGrafix and FASTSIGNS among local signage vendors.

If you tell me what type of commercial sign you need (e.g. monument/pylon, channel letters, building sign, LED/digital, interior/ADA, or a complete rebrand) and roughly where in Western PA, I can narrow this to 3–5 companies that are specifically suited to that project and compare their capabilities, reviews, and locations.

Places ChatGPT showed

• Signs By Tomorrow Allentown · 4.6★ · Sign shop
• FASTSIGNS of Springfield, PA · 4.4★ · Sign shop
• FASTSIGNS of Northeast Philadelphia, PA · 4.8★ · Sign shop
• GOLDEN FOX SIGN · 4.9★ · Sign shop
• FASTSIGNS of Mechanicsburg, PA · 5.0★ · Sign shop
• Signarama York, PA · 5.0★ · Sign shop
• FASTSIGNS of Willow Grove, PA · 3.0★ · Sign shop
• Affordable Zorick's Signs · 5.0★ · Sign shop

If speed is the priority, several Pennsylvania sign companies publicly advertise same-day or 24-hour/next-business-day capabilities. The fastest options I found are:

• Signs By Tomorrow Allentown — next-business-day production for orders approved by noon, with same-day rush production for select projects. Their published policy is unusually specific about the deadline.
• FASTSIGNS of Springfield, PA — documented customer example of an emergency same-day floor-decal job, plus quick turnaround on common signage.
• FASTSIGNS of Northeast Philadelphia, PA — customer feedback reports next-business-day completion for submitted files and other jobs completed in a couple of days.
• GOLDEN FOX SIGN — Philadelphia commercial sign shop with a reputation in its customer feedback for fast turnaround, particularly banners and business signage.
• FASTSIGNS of Mechanicsburg, PA — customers specifically mention very quick turnaround and last-minute projects.
• Signarama York, PA — customer feedback emphasizes quick turnaround and on-time delivery.
• FASTSIGNS of Willow Grove, PA — customers report projects completed in a few days, including tight-turnaround installations.
• Affordable Zorick's Signs — Philadelphia-area shop emphasizing fast, hands-on production for commercial signage.

For specialized work, there are even faster published claims. Elmark Sign Company in West Chester says its average vinyl projects take a few business days but that 24-hour rush production is possible. ADM Signs in Pittsburgh advertises same-day service, with an additional fee. Signs Made Fast in Freedom advertises same-day service options for exterior and other custom signs.

My practical shortlist

Company	Published/observed speed	Best fit
Signs By Tomorrow Allentown	Next business day; select same-day	Commercial signs/graphics
FASTSIGNS Springfield	Same-day examples	Emergency print-style signage
FASTSIGNS Northeast Philly	Next day / a couple days	Commercial + installation
ADM Signs Pittsburgh	Same-day service	Service, repairs, storefront
Elmark	24-hour rush possible	Vinyl/graphics
Signs Made Fast	Same-day options	Exterior/custom signage

One important caveat: “same-day” usually doesn't mean a new illuminated channel-letter, monument, or pylon sign can be designed, fabricated, permitted, and installed that day. The fastest claims generally apply to banners, vinyl, decals, A-frames, simple panels, and service/repair work. Permitting and installation can add substantial time.

If you tell me what type of commercial sign you need, the Pennsylvania city, quantity, and your deadline (e.g. “channel letters in Philadelphia, 3 business days”), I can narrow this to the companies that are most likely to actually meet that deadline.

Places ChatGPT showed

• Signs By Tomorrow Pittsburgh · 4.7★ · Sign shop
• FASTSIGNS of Scranton, PA · 5.0★ · Sign shop
• Signs of Excellence, Inc · 4.9★ · Sign shop
• KC Sign & Awnings · 2.0★ · Signwriters
• Kindle Sign Company · 5.0★ · Sign shop
• D Signs & Awnings · 4.8★ · Sign shop
• Keystone Sign Service · 5.0★ · Sign shop
• The Brown Dog Sign Company · 5.0★ · Sign shop
• Paramount Signs · 4.9★ · Sign shop
• Martino Signs and Awnings · 5.0★ · Sign shop

If you’re looking for a family-owned or locally owned commercial sign company in Pennsylvania that businesses commonly turn to, these are some established options to consider. I focused on companies that handle commercial work (building signs, channel letters, monument signs, LED displays, vehicle graphics, installation, permitting, etc.) and have a local/family ownership story or strong local presence.

Pennsylvania family-owned / locally owned commercial sign companies

Company	Area served	Why businesses consider them
Signs Limited	Pittsburgh / Ohio Valley	Locally owned, family-run sign company offering design, fabrication, installation, service, and maintenance for commercial clients. The company says it handles projects in-house rather than outsourcing key steps.
PA Signs	Statewide PA and nearby states	Built from two longtime family-owned sign companies (Sekula Signs and Widmer Signs). Offers exterior/interior signage, installation, repairs, and upgrades.
Signs of Excellence, Inc.	Western Pennsylvania	Family-owned since 2006; provides custom signage, vehicle graphics, and commercial branding solutions.
KC Sign & Awnings	Eastern PA / Mid-Atlantic	Family-owned and operated with a large fabrication facility; handles signs, awnings, installation, and larger commercial projects.
Kindle Sign Company	Southeastern Pennsylvania	Family-owned, third-generation sign company focused on turnkey commercial signage, including design, permitting, fabrication, and installation.
D Signs & Awnings	Lehigh Valley / surrounding region	Family-owned commercial sign and awning provider with design, fabrication, installation, and maintenance capabilities.
Keystone Sign Service	Central Pennsylvania	Family-owned and operated since 1987, offering commercial signs, LED displays, channel letters, pylon signs, graphics, and service.
The Brown Dog Sign Company	Pittsburgh region	Local custom sign and graphics company serving businesses with design, production, installation, vehicle graphics, and commercial signage.
Paramount Signs	Chester County / Southeastern PA	Family-run sign and graphics company offering commercial signage, branding support, permitting assistance, installation, and maintenance.
Martino Signs and Awnings	Greater Philadelphia / Tri-state	Family-oriented commercial sign and awning manufacturer with in-house production and installation capabilities.

If you need a specific type of commercial sign

• Large corporate-style programs / multi-location rollouts: PSCO Sign Group (formerly associated with Philadelphia Sign) has a long history in large-scale signage programs, including design, engineering, manufacturing, installation, and maintenance.
• Storefront signs, channel letters, monument signs, and permitting help: Kindle, KC Sign & Awnings, Signs Limited, PA Signs, and Keystone are worth comparing.
• Custom craftsmanship / one-off branded signs: Signs of Excellence, Brown Dog, Bob Shaw Signs, and Paramount Signs may be good fits depending on location and style needs.

When choosing, I’d compare:

• examples of recent commercial installs similar to yours,
• whether they handle permits and zoning,
• whether fabrication and installation are done in-house,
• warranty/service response after installation,
• experience with your industry (retail, healthcare, restaurants, offices, industrial, etc.).

If you tell me the Pennsylvania region (Philadelphia, Pittsburgh, Harrisburg, Lehigh Valley, Erie, etc.) and the type of sign you need, I can narrow this to the most relevant local shops.